Does any one have a suggestions on the best way to make these two parts one functioning part again?
As you might have guessed - internal gear from a focus drive (Mitutuyo FS-60). I can't tell exactly how it was joined in the first place but possibly just pressed together somehow (these two-part gears always seem like a weak point to me).
The only thing I can think that may be strong enough is some kind of micro welding but that is outside of my current capabilities (but I'm always happy to experiment/invest).
I guess they are made of steel and brass but correct me if I'm wrong.
Any help appreciated. If anyone has a spare, even better!
Gear repair
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Gear repair
Last edited by Pitufo on Sun Mar 01, 2020 9:53 am, edited 2 times in total.
degrease ist and glue it with retaining adhesive like those Loctite products:
https://www.henkel-adhesives.com/de/en/ ... ounds.html
https://www.henkel-adhesives.com/de/en/ ... ounds.html
Thank you Lothman - that is an excellent suggestion.
I wasn't aware of those products.
P.S. I've ordered some Loctite 638, so will add a progress report.
P.P.S. Title edited to make more sense.
I wasn't aware of those products.
P.S. I've ordered some Loctite 638, so will add a progress report.
P.P.S. Title edited to make more sense.
Last edited by Pitufo on Thu Feb 27, 2020 5:08 am, edited 1 time in total.
The Loctite 638 worked like a dream. Amazing stuff.
I would recommend taking a lot of care removing any excess adhesive from between the teeth as some of this was still liquid after 24 hours (I used a hypodermic needle and tissue under a stereo). If this unreacted adhesive was reassembled with other gears it might set in the absence of oxygen.
Thanks again Lothman - great tip
Kind regards,
John
I would recommend taking a lot of care removing any excess adhesive from between the teeth as some of this was still liquid after 24 hours (I used a hypodermic needle and tissue under a stereo). If this unreacted adhesive was reassembled with other gears it might set in the absence of oxygen.
Thanks again Lothman - great tip
Kind regards,
John
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Hello Pitufo,
You are very fortunate of being in the UK, where for 400 years the standard repair for a stripped Brass Wheel and Steel Pinion is to rebush the wheel.
Here is a link on rebushing, parts easily available in your part of the world
https://www.google.com/search?as_q=&as_ ... as_rights=
As any English watch / clockmaker would say
“ Don’t ruin the good ship for two penneth of tar”
“Down Under” we purchase from some of the listed places.
Always avoid the Quick Fix and Repent Later.
Len
You are very fortunate of being in the UK, where for 400 years the standard repair for a stripped Brass Wheel and Steel Pinion is to rebush the wheel.
Here is a link on rebushing, parts easily available in your part of the world
https://www.google.com/search?as_q=&as_ ... as_rights=
As any English watch / clockmaker would say
“ Don’t ruin the good ship for two penneth of tar”
“Down Under” we purchase from some of the listed places.
Always avoid the Quick Fix and Repent Later.
Len