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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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how to remove striped allen screw?
All,
The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan |
#2
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how to remove striped allen screw?
dansawyeror wrote:
All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Can you drill it out? That's usually how I deal with stripped screws. |
#3
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how to remove striped allen screw?
"dansawyeror" wrote in message . .. The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? ISTR that Sears sells a small extractor set. |
#4
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how to remove striped allen screw?
Meat Plow wrote in message
news On Thu, 19 Apr 2007 21:06:45 -0700, David Brodbeck wrote: dansawyeror wrote: All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Can you drill it out? That's usually how I deal with stripped screws. Drill with a CCW bit. -- #1 Offishul Ruiner of Usenet, March 2007 #1 Usenet Asshole, March 2007 #1 Bartlo Pset, March 13-24 2007 #10 Most hated Usenetizen of all time Pierre Salinger Memorial Hook, Line & Sinker, June 2004 COOSN-266-06-25794 CCW/ left hand drill bit in a CCW/left-hand drill preferably, they both do exist but the bits are a bit hen's teeth. The last time I enquired at the main local engineering supplier (been there 50 years) the bod behind the counter looked at me as though I was trying to wind him up (CCWise of course). For such small diameter extraction it is just a matter of regrinding a standard drill bit with the opposite throw on the cutting end. Swarf clearance is irrelevant for this. Remember to mark the storage box with big letters that the enclosed bit/s is/are CCW. Where I used to work it a the fun thing for the mechanical engineer to supply the electronic technicians with one of his CCW bits to see how they reacted , ie coming back complaining that he'd supplied a blunt bit. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#5
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how to remove striped allen screw?
The gear has a dial with a small, strip[p]ed allen screw. The tool is 1.5
mm. Any thoughts on how to get this off? I presume that the screw head is flat (counter-sunk) or you wouldn't be having a problem grabbing the head with vice-grips and just twisting it out. So... Get a real small cold chisel and a ball-peen hammer. Use the corner of the chisel to cut a divot into the face of the screw near the edge of the screw head. Then, tapping the chisel's corner into the divot, turning it CCW, "walk" it out. Or If the head is not flush with the surface around it, use the chisel to cut a "bite" into the edge of the screw head. Then, tapping the chisel into the bite, turning it CCW, "walk" it out. Or Drill in the hex hole with a drill bit larger than the diameter of the screw shank. When the head pops off, remove the dial and grab the remaining screw shank with a pair of vice-grips and unscrew. Or Weld another bolt onto the head of the stripped out screw head. Unscrew both. -- DaveC This is an invalid return address Please reply in the news group |
#6
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how to remove striped allen screw?
"N Cook" writes:
Meat Plow wrote in message news On Thu, 19 Apr 2007 21:06:45 -0700, David Brodbeck wrote: dansawyeror wrote: All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Can you drill it out? That's usually how I deal with stripped screws. Drill with a CCW bit. -- #1 Offishul Ruiner of Usenet, March 2007 #1 Usenet Asshole, March 2007 #1 Bartlo Pset, March 13-24 2007 #10 Most hated Usenetizen of all time Pierre Salinger Memorial Hook, Line & Sinker, June 2004 COOSN-266-06-25794 CCW/ left hand drill bit in a CCW/left-hand drill preferably, they both do exist but the bits are a bit hen's teeth. The last time I enquired at the main local engineering supplier (been there 50 years) the bod behind the counter looked at me as though I was trying to wind him up (CCWise of course). For such small diameter extraction it is just a matter of regrinding a standard drill bit with the opposite throw on the cutting end. Swarf clearance is irrelevant for this. Remember to mark the storage box with big letters that the enclosed bit/s is/are CCW. Where I used to work it a the fun thing for the mechanical engineer to supply the electronic technicians with one of his CCW bits to see how they reacted , ie coming back complaining that he'd supplied a blunt bit. Oh, come on, why complexify your life? Just use a normal drill. What difference does it make ifyou tighten the screw more as all of it wil be removed. Once the screw has been drilled out, retap with the next size and install a new screw. Done. --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/ Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/ +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html Important: Anything sent to the email address in the message header above is ignored unless my full name AND either lasers or electronics is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. |
#7
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how to remove striped allen screw?
On 20 Apr 2007 08:04:52 -0400, Sam Goldwasser
wrote: Oh, come on, why complexify your life? Just use a normal drill. What difference does it make ifyou tighten the screw more as all of it wil be removed. Once the screw has been drilled out, retap with the next size and install a new screw. Done. The trick is that the left handed bit often causes the screw to come out before drilling through it. Major help especially for hardened screws, and when you drill through the screw fully, you also dimple the shaft making it more difficult to align the newly installed knob or gear sometimes. |
#8
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how to remove striped allen screw?
PeterD wrote in message
... On 20 Apr 2007 08:04:52 -0400, Sam Goldwasser wrote: Oh, come on, why complexify your life? Just use a normal drill. What difference does it make ifyou tighten the screw more as all of it wil be removed. Once the screw has been drilled out, retap with the next size and install a new screw. Done. The trick is that the left handed bit often causes the screw to come out before drilling through it. Major help especially for hardened screws, and when you drill through the screw fully, you also dimple the shaft making it more difficult to align the newly installed knob or gear sometimes. Exactly my experience that often the biting torque of a slow speed LH drill and LH bit is all that is required to undo it. I've kept an otherwise unused big yellow low rev , mains powered, but reversible drill for this purpose and a set of bits , mainly myself LH cutting-face counter-ground, right hand bits from 1.5mm to 6mm. Another tip is to have a few more with a long piece of matching diameter rod brazed/welded to these LH bits for drilling out/removing grub screws in knobs at the centre of large bits of kit. You know the situation, corroded steel in aluminium or brass knobs or inserts of knobs or steel in steel shafts etc -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#9
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how to remove striped alien screw?
On 20 Apr, 03:53, dansawyeror wrote:
All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan A long list of methods: http://wiki.diyfaq.org.uk/index.php?..._Screw_Removal NT |
#10
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how to remove striped allen screw?
On Apr 19, 10:53 pm, dansawyeror wrote:
All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan If it's not countersunk, a small pair of vice-grips does nicely. I have even had success using small haemostats. If it is counter-sunk, there are any number of extractor-bits available for your drill. Peter Wieck Wyncote, PA |
#11
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how to remove striped allen screw?
Go to Sears and look at the sets of screw extractors (Easi-Outs),
perhaps one the right size will grip the inside of the allen screw. You might have to drill out the center however. dansawyeror wrote: All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P |
#12
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how to remove striped allen screw?
" ) writes:
On Apr 19, 10:53 pm, dansawyeror wrote: All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan If it's not countersunk, a small pair of vice-grips does nicely. I have even had success using small haemostats. If it is counter-sunk, there are any number of extractor-bits available for your drill. If it's not countersunk, there are obviously far more options. When taking things apart to salvage some parts, I've used a cutoff wheel in a "Dremel" tool to put a slot in bolts that have unusual heads (usually there to prevent tampering). Slice a slot across the top, then use a regular screwdriver to remove the screw. Of course, it doesn't work if the bolt/screw is embedded. Michael |
#13
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how to remove striped allen screw?
On 20 Apr, 16:44, **THE-RFI-EMI-GUY** wrote:
Go to Sears and look at the sets of screw extractors (Easi-Outs), perhaps one the right size will grip the inside of the allen screw. You might have to drill out the center however. funny that one of the worst methods is so popular. They have a habit of making the screw unremovable. NT |
#14
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how to remove striped allen screw?
wrote in message
ups.com... On 20 Apr, 16:44, **THE-RFI-EMI-GUY** wrote: Go to Sears and look at the sets of screw extractors (Easi-Outs), perhaps one the right size will grip the inside of the allen screw. You might have to drill out the center however. funny that one of the worst methods is so popular. They have a habit of making the screw unremovable. NT I think I have 2 sets of "easi outs" the smallest ones broken in each set and even then not small enough for the usual "electronic" seized screws. Incidently they are CCW / LH (lazy) threaded also. Incidently using left hand drill bits for grub screws set in bakelite knobs its a matter of making some small guide tubes to sit in the bakelite and guide the LH bits into the centre of the screw so it doesn't slide off the steel. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#15
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how to remove striped allen screw?
sit in the bakelite
"Sit"? You mean drill and insert into the bakelite? The cure sounds more drastic than the ailment... |
#16
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how to remove striped allen screw?
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#18
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how to remove striped allen screw?
"David Brodbeck" wrote in message t... Besides, the original post was about a 1.5mm set screw. That's awfully small. It's hard for me to see any method other than drilling being practical. Grind it out or spark it out. Neither will be fun or cheap. |
#19
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how to remove striped allen screw?
On 20 Apr, 20:10, "Homer J Simpson" wrote:
"David Brodbeck" wrote in message t... Besides, the original post was about a 1.5mm set screw. That's awfully small. It's hard for me to see any method other than drilling being practical. Grind it out or spark it out. Neither will be fun or cheap. What do you mean by spark it out? NT |
#20
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how to remove striped allen screw?
N Cook wrote:
wrote in message ups.com... On 20 Apr, 16:44, **THE-RFI-EMI-GUY** wrote: Go to Sears and look at the sets of screw extractors (Easi-Outs), perhaps one the right size will grip the inside of the allen screw. You might have to drill out the center however. funny that one of the worst methods is so popular. They have a habit of making the screw unremovable. NT I think I have 2 sets of "easi outs" the smallest ones broken in each set and even then not small enough for the usual "electronic" seized screws. Incidently they are CCW / LH (lazy) threaded also. Incidently using left hand drill bits for grub screws set in bakelite knobs its a matter of making some small guide tubes to sit in the bakelite and guide the LH bits into the centre of the screw so it doesn't slide off the steel. Here`s a method that might work. Anyone who repairs video recorders has a sizeable collection of small allen keys. Get the nearest larger (either metric or non metric) - depending on what the original is, you might find that it`s only marginally bigger than the original hole and wont quite fit in. Freeze it with your trusty freezer spray and hopefully it will push in. let it warm up back to room temperature, and with a bit of luck, it just might grip enough to get the grub screw moving. As the professor said, It`s a long shot, but it might just work. Ron(UK) |
#21
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how to remove striped allen screw?
wrote in message oups.com... Grind it out or spark it out. Neither will be fun or cheap. What do you mean by spark it out? Electrical-Discharge Machining (EDM) http://www.motorcycle.com/mo/mcnuts/stuckscrews.html |
#22
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how to remove striped allen screw?
dansawyeror wrote:
All, The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan I use Torex tips, Just jam them in.. other tricks I've done is put a very small spot of expoxy on the end of the key wrench and stick it in the head and let it set.., then turn out the screw and replace it. -- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.charter.net/jamie_5 |
#23
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how to remove striped allen screw?
The gear has a dial with a small, striped allen screw. The tool is 1.5
mm. Any thoughts on how to get this off? Thanks - Dan Take the next-larger size hex wrench (if it's a metric, be sure to check inch-sizes, too, for a close fit; if inch, check metric). Grind it down just enough to jamb it in the stripped hole. Unscrew. -- DaveC This is an invalid return address Please reply in the news group |
#24
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how to remove striped allen screw?
On Sat, 21 Apr 2007 02:40:29 GMT, DaveC wrote:
The gear has a dial with a small, striped allen screw. The tool is 1.5 mm. Any thoughts on how to get this off? Thanks - Dan Take the next-larger size hex wrench (if it's a metric, be sure to check inch-sizes, too, for a close fit; if inch, check metric). Grind it down just enough to jamb it in the stripped hole. Unscrew. When I run into such a screw, I just use a pair of diagonal cutters, one blade in the hole and the other on the outside circumference. I've always had enough grip that way to get the screw broken free and turning. |
#25
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how to remove striped allen screw?
My guestion is why was the OP using allen screws that had
stripes on them? |
#26
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how to remove striped allen screw?
"UCLAN" wrote in message ... My guestion is why was the OP using allen screws that had stripes on them? How else would you apply the fudge coating? |
#27
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how to remove striped allen screw?
UCLAN wrote:
My guestion is why was the OP using allen screws that had stripes on them? They were racing screws. The stripes add ten horsepower. -- Music hath charms to soothe the savage breast. That's why stereo has two channels. |
#28
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how to remove striped alien screw?
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