Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
I just recieved a mandate to automate a fastening opperation. We have to
drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
Tom Gardner wrote:
I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html Take a look at the auto feeding screw guns used for fastening subfloors in house construction, should give you some ideas. Can't think of a brand offhand, but just look at the ads in a copy of Fine Home Building and you should find a few. I think Senco has one. Pete C. |
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner"
wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html Don't reinvent the wheel. Contact the vendors/manufactureres of automatic screw driving equipment. They have the expertise. Supply them with sample parts and prints and they will come up with a "turn key" solution. Having been there and done that -- for best results you will most likely need to change the head style of the screw -- from slotted to pozi or one of the newer styles to eliminate cam out. For some reason the product design people will oppose this vehemently. When evaluating prices, remember it is the total piece part cost and not the individual operation/component cost that counts. Also the quality of the screws will become critical with the automatic equipment. Save yourself a bunch of problems and specify camcar or other specific brand name on the engineering print and possibly the sampling plan. see: http://www.designtoolinc.com/DTI5K.html http://www.depragusa.com/ http://www.vibromatic.net/ and a bunch more at http://www.thomasnet.com/products/au...2207004-1.html You may also want to examine replacing the screws with driver rivets if disassembly/service is not an issue. Tamper proof, faster, and cheaper. Unka George (George McDuffee) There is something to be said for government by a great aristocracy which has furnished leaders to the nation in peace and war for generations; even a democrat like myself must admit this. But there is absolutely nothing to be said for government by a plutocracy, for government by men very powerful in certain lines and gifted with the "money touch," but with ideals which in their essence are merely those of so many glorified pawnbrokers. Theodore Roosevelt (1858-1919), U.S. Republican (later Progressive) politician, president. Letter, 15 Nov. 1913. |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
"F. George McDuffee" wrote in message ... On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner" wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html Don't reinvent the wheel. Contact the vendors/manufactureres of automatic screw driving equipment. They have the expertise. Supply them with sample parts and prints and they will come up with a "turn key" solution. Having been there and done that -- for best results you will most likely need to change the head style of the screw -- from slotted to pozi or one of the newer styles to eliminate cam out. For some reason the product design people will oppose this vehemently. When evaluating prices, remember it is the total piece part cost and not the individual operation/component cost that counts. Also the quality of the screws will become critical with the automatic equipment. Save yourself a bunch of problems and specify camcar or other specific brand name on the engineering print and possibly the sampling plan. see: http://www.designtoolinc.com/DTI5K.html http://www.depragusa.com/ http://www.vibromatic.net/ and a bunch more at http://www.thomasnet.com/products/au...2207004-1.html You may also want to examine replacing the screws with driver rivets if disassembly/service is not an issue. Tamper proof, faster, and cheaper. Unka George (George McDuffee) Good info, thanks! You're right on with me doing a "turn-key" set-up, I'ts worth ponying up the money up front and not take this on as a project with the experts already out there. The pay-back will be quick as the labor is costing me $1k+ a month. I'd like to see the machine opperator fill the brush, drill the handle holes, (already automated) screw on the handle and pack the brushes 12 to a box. I will make it lucrative to the opperator. |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner"
wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html I think Leigh at MarMachine has a screw driving setup for sale. One of those parallelagram arraingments with a geared air powered screwdriver fixed on the end so it always remains exactly vertical. Operator sticks screw in hole, brings driver down, pushes button. Repeats I just called him. Its a tapper. Should work..but has no torque clutch. Might rip off screw heads if you dont have controlled air supply. Then there is this.... http://www.deprag.com/english/index.htm (I think this may fit your needs, particularly if you make a jig. Jigs make hiring winos off the street a more viable option G And of course... http://www.northwestpowertools.com/screwguns/674220.htm Now if you want fancy..... http://www.deprag.com/english/index.htm http://www.pemnet.com/fastening_prod...kscrew_system/ http://www.dgindustries.com/screwfeed.html "If thy pride is sorely vexed when others disparage your offering, be as lamb's wool is to cold rain and the Gore-tex of Odin's raiment is to gull**** in the gale, for thy angst shall vex them not at all. Yea, they shall scorn thee all the more. Rejoice in sharing what you have to share without expectation of adoration, knowing that sharing your treasure does not diminish your treasure but enriches it." - Onni 1:33 |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
I think Leigh at MarMachine has a screw driving setup for sale. One
of those parallelagram arraingments with a geared air powered screwdriver fixed on the end so it always remains exactly vertical. Operator sticks screw in hole, brings driver down, pushes button. Repeats I just called him. Its a tapper. Should work..but has no torque clutch. Might rip off screw heads if you dont have controlled air supply. Then there is this.... http://www.deprag.com/english/index.htm (I think this may fit your needs, particularly if you make a jig. Jigs make hiring winos off the street a more viable option G And of course... http://www.northwestpowertools.com/screwguns/674220.htm Now if you want fancy..... http://www.deprag.com/english/index.htm http://www.pemnet.com/fastening_prod...kscrew_system/ http://www.dgindustries.com/screwfeed.html I know of the available guns, I need to automate to the point of the opperator dropping a handle into the jig, then a brush, then push a button to have two screws fed and driven then the opperator puts it in a box. No handeling of screws or handling a driver, just dumop a box of screws into a feeder once in a while. I hate it when I'm told to drop what I'm doing and do something hotter. |
#7
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Tue, 16 May 2006 17:09:30 GMT, "Tom Gardner"
wrote: I think Leigh at MarMachine has a screw driving setup for sale. One of those parallelagram arraingments with a geared air powered screwdriver fixed on the end so it always remains exactly vertical. Operator sticks screw in hole, brings driver down, pushes button. Repeats I just called him. Its a tapper. Should work..but has no torque clutch. Might rip off screw heads if you dont have controlled air supply. Then there is this.... http://www.deprag.com/english/index.htm (I think this may fit your needs, particularly if you make a jig. Jigs make hiring winos off the street a more viable option G And of course... http://www.northwestpowertools.com/screwguns/674220.htm Now if you want fancy..... http://www.deprag.com/english/index.htm http://www.pemnet.com/fastening_prod...kscrew_system/ http://www.dgindustries.com/screwfeed.html I know of the available guns, I need to automate to the point of the opperator dropping a handle into the jig, then a brush, then push a button to have two screws fed and driven then the opperator puts it in a box. No handeling of screws or handling a driver, just dumop a box of screws into a feeder once in a while. I hate it when I'm told to drop what I'm doing and do something hotter. Then call Deprag and tell em your needs. Just be sitting down on something with a back when you read the quote. Gunner "If thy pride is sorely vexed when others disparage your offering, be as lamb's wool is to cold rain and the Gore-tex of Odin's raiment is to gull**** in the gale, for thy angst shall vex them not at all. Yea, they shall scorn thee all the more. Rejoice in sharing what you have to share without expectation of adoration, knowing that sharing your treasure does not diminish your treasure but enriches it." - Onni 1:33 |
#8
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner"
wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html ================ From your responses to the follow-ups it may be time to re-evaluate your product. Is there any need to remove the handle? If not, your best bet may be to eliminate the screws and use what are called drive screws. see: http://www.hansonrivet.com/w58.htm http://www.smithfast.com/udrivescrew.html http://www.instockfasteners.com/PROD...rivescrews.asp and a bunch more. Depending on your production levels you can go several ways. (1) slide fixture that operator loads brush, handle and screws. (2) slide fixture that operator loads brush and handle with drive screws fed from syntron hopper (3) shuttle table with two fixtures with automatic screw feed -- load one while the screws are driven on the other (3) rotary index table with automatic screw feed. Given that you want the operator to pack 12 to a box start with the slide fixture [keeps operator's hands/fingers out of danger] with manual drive screw insertion -- magnetic holders should work fine. If this works out (and production requires) you can upgrade to automatic drive screw feed with little problems. If you go this route and use pneumatic cylinders to seat the drive screws I strongly suggest a enclosure and lock for the air pressure regulator. For some reason the operators/foremen always set the pressure as high as possible and start breaking things, possibly because the machine seems to cycle faster. Be careful of all pinch points and use double button [two hand] controls with anti-tie down to prevent any accidents and/or OSHA problems. Unka George (George McDuffee) There is something to be said for government by a great aristocracy which has furnished leaders to the nation in peace and war for generations; even a democrat like myself must admit this. But there is absolutely nothing to be said for government by a plutocracy, for government by men very powerful in certain lines and gifted with the "money touch," but with ideals which in their essence are merely those of so many glorified pawnbrokers. Theodore Roosevelt (1858-1919), U.S. Republican (later Progressive) politician, president. Letter, 15 Nov. 1913. |
#9
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
"F. George McDuffee" wrote in message ... On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner" wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html ================ From your responses to the follow-ups it may be time to re-evaluate your product. Is there any need to remove the handle? If not, your best bet may be to eliminate the screws and use what are called drive screws. see: http://www.hansonrivet.com/w58.htm http://www.smithfast.com/udrivescrew.html http://www.instockfasteners.com/PROD...rivescrews.asp and a bunch more. Depending on your production levels you can go several ways. (1) slide fixture that operator loads brush, handle and screws. (2) slide fixture that operator loads brush and handle with drive screws fed from syntron hopper (3) shuttle table with two fixtures with automatic screw feed -- load one while the screws are driven on the other (3) rotary index table with automatic screw feed. Given that you want the operator to pack 12 to a box start with the slide fixture [keeps operator's hands/fingers out of danger] with manual drive screw insertion -- magnetic holders should work fine. If this works out (and production requires) you can upgrade to automatic drive screw feed with little problems. If you go this route and use pneumatic cylinders to seat the drive screws I strongly suggest a enclosure and lock for the air pressure regulator. For some reason the operators/foremen always set the pressure as high as possible and start breaking things, possibly because the machine seems to cycle faster. Be careful of all pinch points and use double button [two hand] controls with anti-tie down to prevent any accidents and/or OSHA problems. Unka George (George McDuffee) I remember drive screws, we used to attach a steel scraper to a brush 30 years ago and haven't used them since but what a GREAT idea! They should work for the wood and plastic handles too. Now, what do I drive them with? |
#10
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
"Tom Gardner" wrote in message . com... I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html Hi Tom, I've worked on several projects with very similar requirements for a door and window making client. As mentioned elsewhere - be sitting down when you get quotes back with bowl feeders and auto screwfeed systems. We used Weber systems. All the screws driven were phillips head sheetmetal screws into either aluminum or wood. Expensive, German, Nice. The client specified Webers and had several hundred of them in use. Had some problems with them only once regarding promised delivery dates on a custom setup. Having said that, we bought several different systems from them and the only one that was late was a custom version of their newest product offering. Would still recommend them. IIRC I have some additional info in my bound book from those projects if you would like more... High production with low operator fatigue/chance of injury are very attainable. Another manufacurer that serves the industry is Atlas-Copco. Haven't used them but they have a good reputation. I know of an automotive transmission manufacturing plant that uses higher end Atlas-Copco fastening systems throughout and maintains exhaustive records of every single fastener installed, including torque and some other (to them) important details. All digital, no hand tracking. Crazy expensive but worth it to them for quality purposes. I have a catalog at work with info on their line ranging from standalone screwdrivers with hand fed screws to the digital output versions. Will look up contact info if you are interested. As yet another option, you might look at the "Stickscrew" system if you haven't already. I wish I'd had the chance to use them on a project. No such luck but it might be a fit for your application. Uses scews that are made from barstock and are still attatched end to end when you load them in the gun. Eliminates the bowl feeder (a $10k-18k option) and the feeding lag time. www.pemnet.com I see Gunner posted the same link - ya beat me to it! Sure looks cool... As mentioned by George elsewhere in the thread, Deprag seems to be a big player as well (if their level of advertising in Assembly magazine is any indicator) but I have no experience with their product to comment on. hth, StaticsJason |
#11
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
"StaticsJason" wrote in message news:WFxag.20174$9c6.53@dukeread11... "Tom Gardner" wrote in message . com... I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html Hi Tom, I've worked on several projects with very similar requirements for a door and window making client. As mentioned elsewhere - be sitting down when you get quotes back with bowl feeders and auto screwfeed systems. We used Weber systems. All the screws driven were phillips head sheetmetal screws into either aluminum or wood. Expensive, German, Nice. The client specified Webers and had several hundred of them in use. Had some problems with them only once regarding promised delivery dates on a custom setup. Having said that, we bought several different systems from them and the only one that was late was a custom version of their newest product offering. Would still recommend them. IIRC I have some additional info in my bound book from those projects if you would like more... High production with low operator fatigue/chance of injury are very attainable. Another manufacurer that serves the industry is Atlas-Copco. Haven't used them but they have a good reputation. I know of an automotive transmission manufacturing plant that uses higher end Atlas-Copco fastening systems throughout and maintains exhaustive records of every single fastener installed, including torque and some other (to them) important details. All digital, no hand tracking. Crazy expensive but worth it to them for quality purposes. I have a catalog at work with info on their line ranging from standalone screwdrivers with hand fed screws to the digital output versions. Will look up contact info if you are interested. As yet another option, you might look at the "Stickscrew" system if you haven't already. I wish I'd had the chance to use them on a project. No such luck but it might be a fit for your application. Uses scews that are made from barstock and are still attatched end to end when you load them in the gun. Eliminates the bowl feeder (a $10k-18k option) and the feeding lag time. www.pemnet.com I see Gunner posted the same link - ya beat me to it! Sure looks cool... As mentioned by George elsewhere in the thread, Deprag seems to be a big player as well (if their level of advertising in Assembly magazine is any indicator) but I have no experience with their product to comment on. hth, StaticsJason Thanks, I see enough to present a proposal to start the process of tackling this problem. I know it's going to cost big bucks but the pay back is there. |
#12
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Wed, 17 May 2006 02:45:24 GMT, "Tom Gardner"
wrote: "F. George McDuffee" wrote in message .. . On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner" wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html ================ From your responses to the follow-ups it may be time to re-evaluate your product. Is there any need to remove the handle? If not, your best bet may be to eliminate the screws and use what are called drive screws. see: http://www.hansonrivet.com/w58.htm http://www.smithfast.com/udrivescrew.html http://www.instockfasteners.com/PROD...rivescrews.asp and a bunch more. Depending on your production levels you can go several ways. (1) slide fixture that operator loads brush, handle and screws. (2) slide fixture that operator loads brush and handle with drive screws fed from syntron hopper (3) shuttle table with two fixtures with automatic screw feed -- load one while the screws are driven on the other (3) rotary index table with automatic screw feed. Given that you want the operator to pack 12 to a box start with the slide fixture [keeps operator's hands/fingers out of danger] with manual drive screw insertion -- magnetic holders should work fine. If this works out (and production requires) you can upgrade to automatic drive screw feed with little problems. If you go this route and use pneumatic cylinders to seat the drive screws I strongly suggest a enclosure and lock for the air pressure regulator. For some reason the operators/foremen always set the pressure as high as possible and start breaking things, possibly because the machine seems to cycle faster. Be careful of all pinch points and use double button [two hand] controls with anti-tie down to prevent any accidents and/or OSHA problems. Unka George (George McDuffee) I remember drive screws, we used to attach a steel scraper to a brush 30 years ago and haven't used them since but what a GREAT idea! They should work for the wood and plastic handles too. Now, what do I drive them with? Arbor press with a free spinning taper bearing on the end? On the other hand....Ive got a **** load of decent sized air cylinders and solenoids and manifolds and stuff. Maybe even a foot pedal or two, but you need dual pushbuttons as safeties if this is going to be operated by a person. Gunner "If thy pride is sorely vexed when others disparage your offering, be as lamb's wool is to cold rain and the Gore-tex of Odin's raiment is to gull**** in the gale, for thy angst shall vex them not at all. Yea, they shall scorn thee all the more. Rejoice in sharing what you have to share without expectation of adoration, knowing that sharing your treasure does not diminish your treasure but enriches it." - Onni 1:33 |
#13
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Tue, 16 May 2006 23:30:51 -0500, "StaticsJason"
wrote: Another manufacurer that serves the industry is Atlas-Copco. Haven't used them but they have a good reputation. I know of an automotive transmission manufacturing plant that uses higher end My air powered screwdriver is an Atlas Copco. Yellow one. I keep forgetting to look up how to adjust the torque high limit. Thanks for reminding me Gunner "If thy pride is sorely vexed when others disparage your offering, be as lamb's wool is to cold rain and the Gore-tex of Odin's raiment is to gull**** in the gale, for thy angst shall vex them not at all. Yea, they shall scorn thee all the more. Rejoice in sharing what you have to share without expectation of adoration, knowing that sharing your treasure does not diminish your treasure but enriches it." - Onni 1:33 |
#14
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Wed, 17 May 2006 02:45:24 GMT, "Tom Gardner"
wrote: "F. George McDuffee" wrote in message .. . On Tue, 16 May 2006 13:42:53 GMT, "Tom Gardner" wrote: I just recieved a mandate to automate a fastening opperation. We have to drive two #10 x 1-3/4" SMCs to hold this handle. This has become a full-time job, so it's a high priority and high budget because the job is menial and high risk of repetitive motion injury. http://www.bettymills.com/shop/produ...FS4067600.html ================ From your responses to the follow-ups it may be time to re-evaluate your product. Is there any need to remove the handle? If not, your best bet may be to eliminate the screws and use what are called drive screws. see: http://www.hansonrivet.com/w58.htm http://www.smithfast.com/udrivescrew.html http://www.instockfasteners.com/PROD...rivescrews.asp and a bunch more. Depending on your production levels you can go several ways. (1) slide fixture that operator loads brush, handle and screws. (2) slide fixture that operator loads brush and handle with drive screws fed from syntron hopper (3) shuttle table with two fixtures with automatic screw feed -- load one while the screws are driven on the other (3) rotary index table with automatic screw feed. Given that you want the operator to pack 12 to a box start with the slide fixture [keeps operator's hands/fingers out of danger] with manual drive screw insertion -- magnetic holders should work fine. If this works out (and production requires) you can upgrade to automatic drive screw feed with little problems. If you go this route and use pneumatic cylinders to seat the drive screws I strongly suggest a enclosure and lock for the air pressure regulator. For some reason the operators/foremen always set the pressure as high as possible and start breaking things, possibly because the machine seems to cycle faster. Be careful of all pinch points and use double button [two hand] controls with anti-tie down to prevent any accidents and/or OSHA problems. Unka George (George McDuffee) I remember drive screws, we used to attach a steel scraper to a brush 30 years ago and haven't used them since but what a GREAT idea! They should work for the wood and plastic handles too. Now, what do I drive them with? Many of the same people that sell the screw inserter equipment also sell drive screw inserters. Also the drive screw suppliers should either sell the equipment or know who does. Hydraulic and pneumatic drive is available. Compressed air will cost more than the electricity for the hydraulic over the long run but the initial cost of the pneumatic drivers is lower. I have seen long stroke electric solenoids used, but it is difficult to control insertion speed. (too fast can cause splitting and stripping in wood and plastic) Production volumes, cost and difficulty of set-up/change-over will determine how much automation you want to invest in. Gunner's idea of using a hand operated arbor press (or even a kick press if you can find one) is a good idea for initial testing and evaluation, and can be a real life saver when you need a 1/2 dozen of something and you are in the middle of a long run of another part number on the automated equipment. It may be worthwhile to phase in the amount of automation in the assembly operation. For example, automatic feeding of the drive screws will be expensive, and you may want to have the operator manually load the drive screws in addition to the other parts to start. You may well wind up with several assembly stations and machines for different production levels, from Gunner's arbor/kick press for short runs/specials, to a rotary table or shuttle fixture machine with automatic screw feeding/insertion for the high volume items. On drive screws, not only is the insertion pressure critical but also the insertion rate (especially in wood and plastic), thus you generally need both pressure regulator and flow control valves. As indicated before, the air pressure regulator and flow control valves will need to be secured from operator/foreman "adjustment." Most likely you will want to press to a positive stop. You may also need to include "cycle complete" circuitry to insure that the press cycled to the full depth to seat the drive screws. It is good to see that we can still make things here in the USA. Do a "Paul Harvey" and let us know the rest of the story.... Unka George (George McDuffee) There is something to be said for government by a great aristocracy which has furnished leaders to the nation in peace and war for generations; even a democrat like myself must admit this. But there is absolutely nothing to be said for government by a plutocracy, for government by men very powerful in certain lines and gifted with the "money touch," but with ideals which in their essence are merely those of so many glorified pawnbrokers. Theodore Roosevelt (1858-1919), U.S. Republican (later Progressive) politician, president. Letter, 15 Nov. 1913. |
#15
Posted to rec.crafts.metalworking
|
|||
|
|||
Automatic screw driving
On Wed, 17 May 2006 11:28:22 -0500, F. George McDuffee
wrote: Production volumes, cost and difficulty of set-up/change-over will determine how much automation you want to invest in. Gunner's idea of using a hand operated arbor press (or even a kick press if you can find one) is a good idea for initial testing and evaluation, and can be a real life saver when you need a 1/2 dozen of something and you are in the middle of a long run of another part number on the automated equipment. I have a kickpress, converted to pnuematic if anyone needs one. Gunner "If thy pride is sorely vexed when others disparage your offering, be as lamb's wool is to cold rain and the Gore-tex of Odin's raiment is to gull**** in the gale, for thy angst shall vex them not at all. Yea, they shall scorn thee all the more. Rejoice in sharing what you have to share without expectation of adoration, knowing that sharing your treasure does not diminish your treasure but enriches it." - Onni 1:33 |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
screw keeps turning | UK diy | |||
Is screw too soft ? | Metalworking | |||
New Clifton Chip Breaker - Old Stanley Screw Won't Fit | Woodworking | |||
screw load / mounting plasma to wall | Home Repair | |||
Electrical: when are loops at screw terminals allowed? | Home Repair |