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Anchoring screws in a lamp
I'm repairing a used high-intensity lamp with a magnifying lens that I
picked up. Three screw sockets are either split or disintegrated, probably from over-tightening. (See picture 1.) On one side of the lamp housing, I ground down part of the damaged socket with a Dremel and glued a plastic anchor in place bracing it with the side of the housing. (See picture 2.) I'm pretty sure this will work ok for that side. On the other side, the sockets are 1/2" from the side of the housing so there's nothing to support a plastic anchor. (See picture 3; sockets in picture 1 viewed from above.) I could use a suggestion on how to support these two screws. Picture 1 http://img703.imageshack.us/img703/5237/27526938.jpg Picture 2 http://img227.imageshack.us/img227/5236/53461620.jpg Picture 3 http://img30.imageshack.us/img30/7058/81995353.jpg |
Anchoring screws in a lamp
wrote in message ... I'm repairing a used high-intensity lamp with a magnifying lens that I picked up. Three screw sockets are either split or disintegrated, probably from over-tightening. (See picture 1.) On one side of the lamp housing, I ground down part of the damaged socket with a Dremel and glued a plastic anchor in place bracing it with the side of the housing. (See picture 2.) I'm pretty sure this will work ok for that side. On the other side, the sockets are 1/2" from the side of the housing so there's nothing to support a plastic anchor. (See picture 3; sockets in picture 1 viewed from above.) I could use a suggestion on how to support these two screws. Picture 1 http://img703.imageshack.us/img703/5237/27526938.jpg Picture 2 http://img227.imageshack.us/img227/5236/53461620.jpg Picture 3 http://img30.imageshack.us/img30/7058/81995353.jpg Been there done that. Filled hole with 24 hour JB Weld. Put a sleeve around broken parts and added more JB. Before taking JB out of tubes to mix I warm the 2 tubes with a heat gun (careflly) This makes it more fluid and will fill hole. Next day drill and tap in threads for proper hole size for screws. WW |
Anchoring screws in a lamp
On Jan 14, 8:49*pm, "
wrote: I'm repairing a used high-intensity lamp with a magnifying lens that I picked up. *Three screw sockets are either split or disintegrated, probably from over-tightening. *(See picture 1.) *On one side of the lamp housing, I ground down part of the damaged socket with a Dremel and glued a plastic anchor in place bracing it with the side of the housing. *(See picture 2.) *I'm pretty sure this will work ok for that side. On the other side, the sockets are 1/2" from the side of the housing so there's nothing to support a plastic anchor. *(See picture 3; sockets in picture 1 viewed from above.) *I could use a suggestion on how to support these two screws. Picture 1http://img703.imageshack.us/img703/5237/27526938.jpg Picture 2http://img227.imageshack.us/img227/5236/53461620.jpg Picture 3http://img30.imageshack.us/img30/7058/81995353.jpg The repair suggested by WW is worth a try. Otherwise, I'd try drilling & tapping the remaining boss and using a small diameter machine screw. cheers Bob |
Anchoring screws in a lamp
On Jan 14, 10:49*pm, "
wrote: snip Consider studs instead of screws. The repair would then consist of anchoring cut off screws (studs) into what remains of the threads with Cyanoacrylate cement, then reinforcing with JB Weld build up. That might even be far stronger than the original. Joe |
Anchoring screws in a lamp
On Jan 15, 1:13*pm, Joe wrote:
On Jan 14, 10:49*pm, " wrote: snip Consider studs instead of screws. The repair would then consist of anchoring cut off screws (studs) into what remains of the threads with Cyanoacrylate cement, then reinforcing with JB Weld build up. That might even be far stronger than the original. Joe What everyone else has said is exactly what I would say. |
Anchoring screws in a lamp
I'll second that.
-- Christopher A. Young Learn more about Jesus www.lds.org .. "hr(bob) " wrote in message ... What everyone else has said is exactly what I would say. |
Anchoring screws in a lamp
A big thank you to everyone for your suggestions and comments. The
lamp is now back together and working. Also, special thanks to BobK for introducing me to the proper word for a molded socket: boss. (Do most DIY folks recognize that word or just mechanical engineers?) Bob |
Anchoring screws in a lamp
wrote:
I'm repairing a used high-intensity lamp with a magnifying lens that I picked up. Three screw sockets are either split or disintegrated, probably from over-tightening. (See picture 1.) On one side of the lamp housing, I ground down part of the damaged socket with a Dremel and glued a plastic anchor in place bracing it with the side of the housing. (See picture 2.) I'm pretty sure this will work ok for that side. On the other side, the sockets are 1/2" from the side of the housing so there's nothing to support a plastic anchor. (See picture 3; sockets in picture 1 viewed from above.) I could use a suggestion on how to support these two screws. Picture 1 http://img703.imageshack.us/img703/5237/27526938.jpg Picture 2 http://img227.imageshack.us/img227/5236/53461620.jpg Picture 3 http://img30.imageshack.us/img30/7058/81995353.jpg Drill out the remaining posts a bit, get longer tapping screws, and re-assemble(gently). |
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