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DB connectors
On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote:
I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? This might give you a starting point: http://www.tycoelectronics.com/catal...ML=19138,19229 Good Luck! Rich |
DB connectors
I need to make up connectors like you see on the back of a computer.
My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl |
DB connectors
On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend
wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards |
DB connectors
On Wed, 03 Nov 2010 19:11:26 -0700, Dave B wrote:
On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards OK, I selected crimp, then male and got this is the first part: 617-09-56-200-5601 Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? Karl |
DB connectors
On Wed, 03 Nov 2010 21:31:26 -0500, Karl Townsend
wrote: On Wed, 03 Nov 2010 19:11:26 -0700, Dave B wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards OK, I selected crimp, then male and got this is the first part: 617-09-56-200-5601 Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? Karl Just looked some more I think maybe crimp is for ribbon cable?? I have individual wires. karl |
DB connectors
On Wed, 03 Nov 2010 21:38:12 -0500, Karl Townsend
wrote: 617-09-56-200-5601 I always solder but here are the tools http://www.mouser.com/ProductDetail/...hrlJlwWrEuw%3d db |
DB connectors
On Wed, 03 Nov 2010 21:38:12 -0500, Karl Townsend
wrote: 617-09-56-200-5601 Make sure you look close at the tools as they are expensive. I had ribbon cabbles made up today 2 @ 15 each took 10 minutes and saved me a headache. db |
DB connectors
On Wed, 03 Nov 2010 18:09:05 -0700, Rich Grise
wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? This might give you a starting point: http://www.tycoelectronics.com/catal...ML=19138,19229 Good Luck! Rich I found a kit http://www.tycoelectronics.com/catal...595,402596&N=6 This kit looks great, i'd have everyting i need. can't see how to navigate to get the right number of pins. AND they don't give prices withoug a major log in event. They won't get my business. Karl |
DB connectors
On Wed, 03 Nov 2010 21:38:12 -0500, Karl Townsend
wrote: On Wed, 03 Nov 2010 21:31:26 -0500, Karl Townsend wrote: On Wed, 03 Nov 2010 19:11:26 -0700, Dave B wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards OK, I selected crimp, then male and got this is the first part: 617-09-56-200-5601 Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? Karl Just looked some more I think maybe crimp is for ribbon cable?? I have individual wires. karl I have a good crimper I suppose i could use it for that if I had the correct die. After soldering connectors for many moons it never crosses my mind although crimp is nicer (neater) once you have the tool it last's a lifetime. db |
DB connectors
Karl Townsend wrote: On Wed, 03 Nov 2010 18:09:05 -0700, Rich Grise wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? This might give you a starting point: http://www.tycoelectronics.com/catal...ML=19138,19229 Good Luck! Rich I found a kit http://www.tycoelectronics.com/catal...595,402596&N=6 This kit looks great, i'd have everyting i need. can't see how to navigate to get the right number of pins. AND they don't give prices withoug a major log in event. They won't get my business. Karl I'm pretty sure they don't sell direct anyway. Digi-Key will have all you need. Just find the style of connector shells you like and the matching crimp pins. Easy stuff, and yes, the crimp pins are a lot easier to work with than the fixed solder cup connectors. Being the backup for your backup type, I tend to solder the pins after crimping them. Never had a problem with them. Be sure to get one of the pin removal tools as well in case you miss the correct hole and need to get the pin back out. |
DB connectors
Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. Karl, they aren't that hard to solder if you pretin the wire & the terminal in the connector. Then put a drop of RMA liquid rosin flux on the terminal. Hold the tinned wire against the notch in the terminal & reheat. The wire will pus into the notch and you will have a clean joint without burning anything. make sure you use good solder, like Ersin (Multicore). Cheap solder is no bargain at any price. I just clamp the connector in a small, smooth jawed drill press vise so i don't have to chase it around the bench. If I have many to do, I clamp a mating conncetor in the vise to safe time. I can show you how when you pass through Ocala in a couple weeks if you'd like. I could even make the cables for you if your wire isn't already part of a machine. -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
On Wed, 03 Nov 2010 23:13:32 -0400, "Michael A. Terrell"
wrote: Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. Karl, they aren't that hard to solder if you pretin the wire & the terminal in the connector. Then put a drop of RMA liquid rosin flux on the terminal. Hold the tinned wire against the notch in the terminal & reheat. The wire will pus into the notch and you will have a clean joint without burning anything. make sure you use good solder, like Ersin (Multicore). Cheap solder is no bargain at any price. I just clamp the connector in a small, smooth jawed drill press vise so i don't have to chase it around the bench. If I have many to do, I clamp a mating conncetor in the vise to safe time. I can show you how when you pass through Ocala in a couple weeks if you'd like. I could even make the cables for you if your wire isn't already part of a machine. I just selected a bunch of solder type from digikey. I'll hire it out locally. I don't even try to solder anything smaller than #18 wire and it has to be to a through hole type pin. Its a skill I was poor at years ago, and I got worse. karl |
DB connectors
On Thu, 04 Nov 2010 00:22:18 -0400, Michael A. Terrell wrote:
Karl Townsend wrote: On Wed, 03 Nov 2010 23:13:32 -0400, "Michael A. Terrell" Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. Karl, they aren't that hard to solder if you pretin the wire & the terminal in the connector. Then put a drop of RMA liquid rosin flux on the terminal. Hold the tinned wire against the notch in the terminal & reheat. The wire will pus into the notch and you will have a clean joint without burning anything. make sure you use good solder, like Ersin (Multicore). Cheap solder is no bargain at any price. I just clamp the connector in a small, smooth jawed drill press vise so i don't have to chase it around the bench. If I have many to do, I clamp a mating conncetor in the vise to safe time. I can show you how when you pass through Ocala in a couple weeks if you'd like. I could even make the cables for you if your wire isn't already part of a machine. I just selected a bunch of solder type from digikey. I'll hire it out locally. I don't even try to solder anything smaller than #18 wire and it has to be to a through hole type pin. Its a skill I was poor at years ago, and I got worse. I always prefered the solder type, since they are easy to modify or re use. :) I was partial to the crimp&shove type, primarily because one day some AMP rep gave me a crimper that would cost about $300.00 if you bought it. ;-) And these things are almost free: http://www.tecratools.com/product1199.html Cheers! Rich |
DB connectors
On Wed, 03 Nov 2010 21:38:12 -0500, Karl Townsend wrote:
Just looked some more I think maybe crimp is for ribbon cable?? I have individual wires. No, for ribbon you use IDC (Insulation Displacement Connectors). For wires, you use individual pins, which usually come on a strip. Do some googling, maybe for D-Sub tutorial? Holy crap! http://www.l-com.com/content/D-Submi...-Tutorial.html ;-) Have Fun! Rich |
DB connectors
On Wed, 03 Nov 2010 22:01:00 -0500, Pete C. wrote:
I'm pretty sure they don't sell direct anyway. Digi-Key will have all you need. Just find the style of connector shells you like and the matching crimp pins. Easy stuff, and yes, the crimp pins are a lot easier to work with than the fixed solder cup connectors. Being the backup for your backup type, I tend to solder the pins after crimping them. Never had a problem with them. Be sure to get one of the pin removal tools as well in case you miss the correct hole and need to get the pin back out. This reminds me. If there's a lot of mechanical motion, the wires can break off at the pins, so you'd need the tool to pop them out; to prevent this, if there's an option available, get pins "with insulation support." There's one crimp around the wire, and a slightly larger crimp around the insulation, to act as sort of a strain relief. Cheers! Rich |
DB connectors
Karl Townsend wrote: On Wed, 03 Nov 2010 23:13:32 -0400, "Michael A. Terrell" wrote: Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. Karl, they aren't that hard to solder if you pretin the wire & the terminal in the connector. Then put a drop of RMA liquid rosin flux on the terminal. Hold the tinned wire against the notch in the terminal & reheat. The wire will pus into the notch and you will have a clean joint without burning anything. make sure you use good solder, like Ersin (Multicore). Cheap solder is no bargain at any price. I just clamp the connector in a small, smooth jawed drill press vise so i don't have to chase it around the bench. If I have many to do, I clamp a mating conncetor in the vise to safe time. I can show you how when you pass through Ocala in a couple weeks if you'd like. I could even make the cables for you if your wire isn't already part of a machine. I just selected a bunch of solder type from digikey. I'll hire it out locally. I don't even try to solder anything smaller than #18 wire and it has to be to a through hole type pin. Its a skill I was poor at years ago, and I got worse. I always prefered the solder type, since they are easy to modify or re use. :) -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
On Wed, 03 Nov 2010 19:51:54 -0700, Dave B wrote:
On Wed, 03 Nov 2010 21:38:12 -0500, Karl Townsend wrote: On Wed, 03 Nov 2010 21:31:26 -0500, Karl Townsend wrote: On Wed, 03 Nov 2010 19:11:26 -0700, Dave B wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards OK, I selected crimp, then male and got this is the first part: 617-09-56-200-5601 Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? Karl Just looked some more I think maybe crimp is for ribbon cable?? I have individual wires. karl I have a good crimper I suppose i could use it for that if I had the correct die. After soldering connectors for many moons it never crosses my mind although crimp is nicer (neater) once you have the tool it last's a lifetime. db Thanks for the mouser link. I got up this morning and quickly selected crimp connectors for just a few bucks. same stuff was $30 each at digikey. I just placed an order and I'll crimp as best I can with what I got and then solder reinforce. There's only four contacts used in each plug. thanks again Karl |
DB connectors
On 11/3/2010 11:36 PM, Karl Townsend wrote:
I just selected a bunch of solder type from digikey. I'll hire it out locally. I don't even try to solder anything smaller than #18 wire and it has to be to a through hole type pin. Its a skill I was poor at years ago, and I got worse. There is another assembly option. Some places mass terminate solder cup type connectors using solder sleeves- a short piece of shrink tubing with a stripe of solder paste on the inside (Raychem is one manufacturer). Put the connector in a vise, put a solder barrel over each connector solder cup, strip the wire and poke it down into the desired solder cup. The solder barrel is able to hold the wire in place until all the wires are positioned. Hit the connector with a heat gun. The solder barrels shrink and the solder paste inside them melts, flows, and makes the connection. You end up with tight insulated connections. Kevin Gallimore |
DB connectors
On Nov 3, 11:13*pm, "Michael A. Terrell"
wrote: ... * I just clamp the connector in a small, smooth jawed drill press vise so i don't have to chase it around the bench. *If I have many to do, I clamp a mating conncetor in the vise to safe time. ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32 Stand the vise on end so the solder cups are horizontal with the notch up, and weight the wire to stay in place. Don't forget the heatshrink. The vise puts the work low enought that you can rest your hand on the bench to steady it. DB connectors are a vacation at the beach compared to Lemo and Binder solder connectors: http://www.binder-usa.com/psearch_detail.php?pid=6674 Except for not touching the tip I find puddle control for soldering and TIG welding very similar. I practiced joining 4130 tubing for the first time at school last night. jsw |
DB connectors
Karl Townsend wrote:
(...) Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? http://www.mouser.com/ProductDetail/...XQLen2Gi 4%3d Mouser 530-40-9558M are pre-crimped. You click the proper connector into the proper hole, fasten the hood in place and plug an RJ-45 modular cable in back. Bob's Your Uncle. --Winston |
DB connectors
Another method of wiring connectors with lots of contacts is resistance
soldering where a tweezer-type tool heats the connection with a very low voltage, moderately high current that passes thru the contact's solder cup, creating very localized heat. The wire ends are stripped and tinned, and the solder cups at the ends of the contacts are tinned and partially filled with solder. The tweezers are "pinched" onto the contact (each side of the solder cup), the resistance soldering station is energized (foot switch, typically), and the tinned wire end is pushed into the molten solder puddle in the cup as the heat increases to the flow temperature of the solder. The current beiefly passes thru the contact, solder and wire end until the operator releases the foot switch, and then moves the tweezer tips to the next solder cup to repeat the process. The tweezer tips only need to be kept clean (not tinned) so they can provide a good electrical connection with the contact or terminal to be soldered. Te resistance soldering station provides a line/mains-isolated low voltage from a transformer that may have a variable duty cycle triac circuit, to adjust how fast the heat is generated in the contact. The variable duty cycle allows the operator to adjust/tune for different sized connections (very light duty for miniature contacts, or more sustained current cycles for heavy duty terminals). -- WB .......... "axolotl" wrote in message ... On 11/3/2010 11:36 PM, Karl Townsend wrote: I just selected a bunch of solder type from digikey. I'll hire it out locally. I don't even try to solder anything smaller than #18 wire and it has to be to a through hole type pin. Its a skill I was poor at years ago, and I got worse. There is another assembly option. Some places mass terminate solder cup type connectors using solder sleeves- a short piece of shrink tubing with a stripe of solder paste on the inside (Raychem is one manufacturer). Put the connector in a vise, put a solder barrel over each connector solder cup, strip the wire and poke it down into the desired solder cup. The solder barrel is able to hold the wire in place until all the wires are positioned. Hit the connector with a heat gun. The solder barrels shrink and the solder paste inside them melts, flows, and makes the connection. You end up with tight insulated connections. Kevin Gallimore |
DB connectors
On Nov 3, 7:51*pm, Karl Townsend
wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictuhttp://search.digikey..com/scripts/D...tail&name=A320... or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Having soldered and crimped literally hundreds of DB-25s, I can say crimping is much faster, tool is much more expensive, though. If you're going to use this stuff on anything with a lot of vibration, go for the crimp. Eventually a soldered wire joint will fail just above where the pin is soldered on, given enough vibration. Found that out on the VW injection harness... The pins are NOT Molex pins, you'll need either a different set of dies or a whole new crimper. Prices are all over the place depending on who's name is branded on its butt. Pins are pretty cheap, though. You'll want the special gizmo to remove pins, you WILL get one in the wrong hole eventually, trust me on this. Easier to swap crimped pins than to unsolder and resolder solder pot connectors. Solder-pot connectors aren't that hard to do, it's just tedious work, tin wires, tin the pot, insert wire while heating pin, repeat ad nauseum. Helps to have the connector held in a vise, but I've done it hand-held. If you really want to do a posh job, a short length of shrink tube right over the joints is the finishing touch. Gives a bit of strain relief and a bit of protection should something conductive make its way in. Stan |
DB connectors
On 11/03/2010 06:51 PM, Karl Townsend wrote:
I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Crimpers for those things need to be high quality, and the decent ones cost $$$. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html |
DB connectors
Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. If I have many to do, I ? clamp a mating conncetor in the vise to safe time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32 Stand the vise on end so the solder cups are horizontal with the notch up, and weight the wire to stay in place. Don't forget the heatshrink. The vise puts the work low enought that you can rest your hand on the bench to steady it. DB connectors are a vacation at the beach compared to Lemo and Binder solder connectors: http://www.binder-usa.com/psearch_detail.php?pid=6674 Except for not touching the tip I find puddle control for soldering and TIG welding very similar. I practiced joining 4130 tubing for the first time at school last night. The worst were cables for old TV studio cameras with a lot of coax and different sized pins. It could take you days to do one plug. :( RCA was bad enough, but I've heard that the Philips cables were so bad that guys would threaten to quit before they would repair one. -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...PARTPG=INLMK32 I get: 'The Enco Model Number that you entered could not be located.' -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
On Nov 4, 4:42*pm, "Michael A. Terrell"
wrote: Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? * I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. *If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...O=24730466?PAR... * *I get: * *'The Enco Model Number that you entered could not be located.' Try searching for MSC 56451263: http://metalworking.mscdirect.com/CG...MPXNO=17738631 Better price,too. jsw |
DB connectors
Jim Wilkins wrote: On Nov 4, 4:42 pm, "Michael A. Terrell" wrote: Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...O=24730466?PAR... I get: 'The Enco Model Number that you entered could not be located.' Try searching for MSC 56451263: http://metalworking.mscdirect.com/CG...MPXNO=17738631 Better price,too. That link worked. Similar to the 4" one I use, and it cost me $7 new. :) -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
On Thu, 04 Nov 2010 17:48:23 -0400, "Michael A. Terrell"
wrote: Jim Wilkins wrote: On Nov 4, 4:42 pm, "Michael A. Terrell" wrote: Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...O=24730466?PAR... I get: 'The Enco Model Number that you entered could not be located.' Try searching for MSC 56451263: http://metalworking.mscdirect.com/CG...MPXNO=17738631 Better price,too. That link worked. Similar to the 4" one I use, and it cost me $7 new. :) I got mine for free. it was my first machine shop project in 1974 for my manufacturing engineer design and build class. We started by casting the AL frame. Our team must have spent 400 hours setting up and making a dozen. No such thing as an NC machine in that class. The whole point of the class was to set up small scale manufacturing. That class is when my love affair with metal mangling, and the machines that do it, began. karl Karl |
DB connectors
On Thu, 4 Nov 2010 14:26:08 -0700 (PDT), Jim Wilkins
wrote: On Nov 4, 4:42*pm, "Michael A. Terrell" wrote: Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? * I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. *If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...O=24730466?PAR... * *I get: * *'The Enco Model Number that you entered could not be located.' Try searching for MSC 56451263: http://metalworking.mscdirect.com/CG...MPXNO=17738631 Better price,too. Excellent price. I paid $30 for a 3" sine from 800watt on eBay a few years ago. -- Experience is a good teacher, but she send in terrific bills. -- Minna Thomas Antrim |
DB connectors
On Thu, 04 Nov 2010 12:19:48 -0700, Tim Wescott
wrote: On 11/03/2010 06:51 PM, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Crimpers for those things need to be high quality, and the decent ones cost $$$. I guess I'll find out. I plan to crimp them with whatever I can come up with and then solder before inserting. Total cost was under $20 so I'm not out much if it don't work. Plan "B" would be to hire the job out and get the solder type. Karl |
DB connectors
Karl Townsend wrote: On Thu, 04 Nov 2010 17:48:23 -0400, "Michael A. Terrell" wrote: Jim Wilkins wrote: On Nov 4, 4:42 pm, "Michael A. Terrell" wrote: Jim Wilkins wrote: On Nov 3, 11:13 pm, "Michael A. Terrell" ? wrote: ? ... ? I just clamp the connector in a small, smooth jawed drill press vise ? so i don't have to chase it around the bench. If I have many to do, I ? clamp a mating connector in the vise to save time. ? ... I use a small one like this: http://www.use-enco.com/CGI/INSRIT?P...O=24730466?PAR... I get: 'The Enco Model Number that you entered could not be located.' Try searching for MSC 56451263: http://metalworking.mscdirect.com/CG...MPXNO=17738631 Better price,too. That link worked. Similar to the 4" one I use, and it cost me $7 new. :) I got mine for free. it was my first machine shop project in 1974 for my manufacturing engineer design and build class. We started by casting the AL frame. Our team must have spent 400 hours setting up and making a dozen. No such thing as an NC machine in that class. The whole point of the class was to set up small scale manufacturing. That class is when my love affair with metal mangling, and the machines that do it, began. 400 hours over 12 units isn't really free. ;) I had mine and was using it in under an hour. :) -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
DB connectors
On 11/04/2010 04:44 PM, Karl Townsend wrote:
On Thu, 04 Nov 2010 12:19:48 -0700, Tim wrote: On 11/03/2010 06:51 PM, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Crimpers for those things need to be high quality, and the decent ones cost $$$. I guess I'll find out. I plan to crimp them with whatever I can come up with and then solder before inserting. Total cost was under $20 so I'm not out much if it don't work. Plan "B" would be to hire the job out and get the solder type. The pins have a round barrel into which you insert the wire. The crimper pushes four hardened pins into the barrel, dimpling it and pressing it onto the wire. Tres fancy. Because the barrel of the pin extends down into the hole in the housing you can't just crimp it by crushing it -- you have to do something that'll make it grip the wire without deforming it to the point where it won't go into its hole. (I think the barrel is relieved where the crimper dimples it, so any little 'outies' don't interfere with putting it into the housing). How far out in the boonies are you? Any electronics place that deals with DB connectors has a chance at having the crimper; if there's a contract cable assembly guy near you he'd probably be happy to make them up. Note: I'd solder them myself, but I solder all the time. If I had to hire it done I'd either make damn sure the guy understood crimped DB connections, or I'd hire a kid to do the soldering and I'd stand over him for the first few connectors to make sure they were right. If I made more than 10 cables a year I'd probably buy a crimper -- but I make less than 1, on average. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html |
DB connectors
On Thu, 04 Nov 2010 18:54:04 -0700, Tim Wescott
wrote: On 11/04/2010 04:44 PM, Karl Townsend wrote: On Thu, 04 Nov 2010 12:19:48 -0700, Tim wrote: On 11/03/2010 06:51 PM, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Crimpers for those things need to be high quality, and the decent ones cost $$$. I guess I'll find out. I plan to crimp them with whatever I can come up with and then solder before inserting. Total cost was under $20 so I'm not out much if it don't work. Plan "B" would be to hire the job out and get the solder type. The pins have a round barrel into which you insert the wire. The crimper pushes four hardened pins into the barrel, dimpling it and pressing it onto the wire. Tres fancy. Because the barrel of the pin extends down into the hole in the housing you can't just crimp it by crushing it -- you have to do something that'll make it grip the wire without deforming it to the point where it won't go into its hole. (I think the barrel is relieved where the crimper dimples it, so any little 'outies' don't interfere with putting it into the housing). How far out in the boonies are you? Any electronics place that deals with DB connectors has a chance at having the crimper; if there's a contract cable assembly guy near you he'd probably be happy to make them up. Note: I'd solder them myself, but I solder all the time. If I had to hire it done I'd either make damn sure the guy understood crimped DB connections, or I'd hire a kid to do the soldering and I'd stand over him for the first few connectors to make sure they were right. If I made more than 10 cables a year I'd probably buy a crimper -- but I make less than 1, on average. Thanks for the info. i can duplicate that easily. I'll drill a hole in scrap stock to hold the pin. Then a cross hole to hold a center punch. Put wire and pin in there and give it a slight whack for an indent. Then solder it. karl |
DB connectors
So it seems simple - two 25pin D's and one 37 pin D.
Another option is all in one socket. Molex is another option. Round Cannon is another option. D's require a D shaped hole while cannon are screw on and are round holes. Molex is typically square. Consider the holes you have to mount them into. Each end could be different - matching the machine to machine. Martin On 11/3/2010 8:51 PM, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl |
DB connectors
Crimp requires an expensive (normally) crimp tool.
Martin On 11/3/2010 9:38 PM, Karl Townsend wrote: On Wed, 03 Nov 2010 21:31:26 -0500, Karl Townsend wrote: On Wed, 03 Nov 2010 19:11:26 -0700, Dave wrote: On Wed, 03 Nov 2010 20:51:10 -0500, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Karl Karl Have you ever used Mouser? Mouser.com http://www.mouser.com/Interconnects/...z0vlpeZ1z0wxom Regards OK, I selected crimp, then male and got this is the first part: 617-09-56-200-5601 Now do i need some sort of shell, some kind of pins, missing anything else? Any special tool? Karl Just looked some more I think maybe crimp is for ribbon cable?? I have individual wires. karl |
DB connectors
The typical sub-D contacts that I'm familiar with use a different crimper
than described, Tim. Typical contacts for commercial grade sub-D connectors are similar to Molex contacts, but much smaller.. but they also have two sets of tabs that form U shapes, one where the stripped wire gets crimped, and the second set for gripping the wire's insulation. The cross-section of the crimp area for the wire looks like the tabs rolled in to form someting like a 3 with a radius at the opening of the 3. The better quality crimpers will be compound-action types with ratcheting mechanisms to insure a full cycle, and numerous brands are good ones.. AMP, Black Box, Sargent, etc (all made in U.S.A.). A simple scissor-type crimp tool will likely produce inconsistent crimps.. some may be OK, others may separate from the wire or be loosely crimped to the wire strands. The crimper you described is generally for (fully round) machined contacts with heavier wall thicknesses, as used in high reliability avionics-type or aircraft circular connectors, but also used in higher quality sub-D connectors. Those crimpers sorta resemble a Buchanan splice crimper with an extension tube protruding from one side (Daniels tool, etc). The higher quality contacts are much better quality that typical commercial grade contacts which are stamped and formed from thin sheet brass. You're definitely correct about not crushing the crimp areas with an incorrect tool, as the widening of the contact will interfere with proper installation, and the contacts are supposed to somewhat float in the connector bodies, but have good alignment. For myself, soldering pre-assembled connectors is quicker than crimping, and a proper soldering job should be more reliable than crimping for someone that doesn't have some crimping experience, and definitely more reliable than trying to improvise a good crimp without the proper crimp tool. -- WB .......... "Tim Wescott" wrote in message ... On 11/04/2010 04:44 PM, Karl Townsend wrote: On Thu, 04 Nov 2010 12:19:48 -0700, Tim wrote: On 11/03/2010 06:51 PM, Karl Townsend wrote: I need to make up connectors like you see on the back of a computer. My servo amps have a couple 2 row 15 pin, a 2 row 25 pin, and a 3 row 26 pin places to connect. I'm seeing a bewildering number of possibilities in digikey. FWIW the connector plug I'm after is similar to this pictu http://search.digikey.com/scripts/Dk...name=A32073-ND or digikey part A32073-ND. I'm not after this part, just trying to show the connector. I'm not at all good at soldering in tight places. I much prefer something that can be made up by crimping. I have a Molex type crimp tool. can someone suggest a good series of parts for this? Crimpers for those things need to be high quality, and the decent ones cost $$$. I guess I'll find out. I plan to crimp them with whatever I can come up with and then solder before inserting. Total cost was under $20 so I'm not out much if it don't work. Plan "B" would be to hire the job out and get the solder type. The pins have a round barrel into which you insert the wire. The crimper pushes four hardened pins into the barrel, dimpling it and pressing it onto the wire. Tres fancy. Because the barrel of the pin extends down into the hole in the housing you can't just crimp it by crushing it -- you have to do something that'll make it grip the wire without deforming it to the point where it won't go into its hole. (I think the barrel is relieved where the crimper dimples it, so any little 'outies' don't interfere with putting it into the housing). How far out in the boonies are you? Any electronics place that deals with DB connectors has a chance at having the crimper; if there's a contract cable assembly guy near you he'd probably be happy to make them up. Note: I'd solder them myself, but I solder all the time. If I had to hire it done I'd either make damn sure the guy understood crimped DB connections, or I'd hire a kid to do the soldering and I'd stand over him for the first few connectors to make sure they were right. If I made more than 10 cables a year I'd probably buy a crimper -- but I make less than 1, on average. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html |
DB connectors
....
Some possibilities above -- depending on which style of crimp you need. Good Luck, DoN. DoN, I've only got four pins to connect so the ribbon option is out. This is a one time job so I don't want to spend a fortune. I'd like to buy the tool on eBay, if you wouldn't mind pointing out the correct tool. See my other response to your other post. Karl DoN, I've been surfing for crimp tool and found this: http://www.dataaccessories.com/dsub.html The pins sure look like a molex type to me on the page. Anyway, I'll pop for $50 if this solves my little problem. Karl |
DB connectors
On Fri, 05 Nov 2010 06:49:29 -0500, Karl Townsend wrote:
Karl Townsend wrote: DoN wrote: ... Some possibilities above -- depending on which style of crimp you need. DoN, I've only got four pins to connect so the ribbon option is out. This is a one time job so I don't want to spend a fortune. I'd like to buy the tool on eBay, if you wouldn't mind pointing out the correct tool. .... DoN, I've been surfing for crimp tool and found this: http://www.dataaccessories.com/dsub.html The pins sure look like a molex type to me on the page. Anyway, I'll pop for $50 if this solves my little problem. The T3002 D-Sub Crimp Tool (last item at that link) probably is what DoN referred to as a "scissors type" crimp tool. IIRC, he suggested it won't work well in comparison with Daniels or AMP crimpers when they are used with correct pins. (Daniels are in several current ebay auctions, eg 150511878340 and 190461084132.) Anyhow, to the point. I have a crimp tool like T3002 and male and female pins like are sold at the link, plus DB9 and DB25 shells for same and have had bad luck with them. For example, loose wires in crimp, pins not retained in shell, bent pins. For the few cables and low pin-counts you've mentioned, try solder cup connectors. Sacrifice half a dozen connectors for soldering practice -- eg make up several short gender changers and jumpers or test sets. Slide inch-long pieces of 1/10" heat shrink tubing onto each wire before connecting it, and some 1/4" over all the wires, also before connecting. See links below for details. What gauge are the wires? How long is each of them? Do you need to terminate the wires in place, or can you string a pre-constructed cable? Do you know what kind of signal the wires carry? (Eg, servo voltage or current, switch closures, pulse train, serial RS232/422/488) Links about soldering cable connectors -- containing both good and bad advice -- http://www.matronics.com/aeroelectric/articles/dsubs/d_solder.html http://www.colomar.com/Shavano/xlr_cable.html http://www.gearslutz.com/board/geekslutz-forum/367614-db25-soldering-tips.html http://www.controlbooth.com/forums/sound-music-intercom/296-soldering-xlr.html -- jiw |
DB connectors
Karl Townsend wrote:
DoN wrote: ... Some possibilities above -- depending on which style of crimp you need. DoN, I've only got four pins to connect so the ribbon option is out. This is a one time job so I don't want to spend a fortune. I'd like to buy the tool on eBay, if you wouldn't mind pointing out the correct tool. See my other response to your other post. DoN, I've been surfing for crimp tool and found this: http://www.dataaccessories.com/dsub.html The pins sure look like a molex type to me on the page. Anyway, I'll pop for $50 if this solves my little problem. The pins have the same form factor, aspect ratio, etc. as Molex pins, but they're about 1/2 to 1/3 the size. And all the Molex pins I've seen have been tin-plated, while most D-sub pins I've seen are either brassy or gold plated. By this time, I'd have ordered some pins and shells (be sure you get the right male/female combination) and squashed them with my needle-nose pliers. ;-) Cheers! Rich |
DB connectors
On 11/04/2010 11:17 PM, DoN. Nichols wrote:
On 2010-11-05, Karl wrote: On Thu, 04 Nov 2010 18:54:04 -0700, Tim wrote: [ ... ] The pins have a round barrel into which you insert the wire. The crimper pushes four hardened pins into the barrel, dimpling it and pressing it onto the wire. Tres fancy. Because the barrel of the pin extends down into the hole in the housing you can't just crimp it by crushing it -- you have to do something that'll make it grip the wire without deforming it to the point where it won't go into its hole. (I think the barrel is relieved where the crimper dimples it, so any little 'outies' don't interfere with putting it into the housing). [ ... ] Thanks for the info. i can duplicate that easily. I'll drill a hole in scrap stock to hold the pin. Then a cross hole to hold a center punch. Put wire and pin in there and give it a slight whack for an indent. Then solder it. NO! 1) Note that he said *four* hardened pins -- pushing equally from four sides at 90 degree intervals, so the pin stays centered. If you do it with a center punch, things will be deformed in such a way that they won't go into the hole in the connector body well. 2) The same with solder. (Aside from not having access for the solder to the actual joint which is buried down in the tube, not out where you can get to it.) And the solder will bulge out as well, to make it not fit well in the connector body hole. *And* -- you won't be able to extract pins which wind up in the wrong hole when (not if) you get one wrong. (You do need the insertion/extraction tool to go with the pins.) There are two styles of pins to consider. Not to mention that the last 1/8" or so of the pin body is supposed to receive the insulation, for strain relief -- solder a wire straight into the pin and it'll just break off right at the pin. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html |
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