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File: bausch-lomb-microscope-focus-mount-e-arm-stereozoom-sz-2-3-4-5-6-7-c9f6c00dc7225963e621e63c9c37b2ef.jpg (11KB, 400x266px) Image search:
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I dun goofed.
I got a lovely stereo microscope for fairly cheap from the local college property sale. Unfortunately, it was seized pretty bad, and my ham-handed dumbass turned the focus knob until I stripped over half the teeth from the helical gear inside. Is there a crash course on measuring helical gears so I can get a new one? Alternatively, is there an easier way of solving this problem?
Pic relate, the part I wrecked in question, a Bausch and Lomb E-Arm focus rack.
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>>1130878
>fairly cheap from the local college property sale
heh shoulda bought two
maybe you can check sdi-si for something similar. could you use some gauge pins to find pitch/other parameters?
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>>1130882
Yeah, I might head back today and see what they have. They had a second one but no stand for it.
As for gauge pins, I have basically no machining tools save for a vaguely dodgy digital caliper.
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It's going to be a lot easier to find a replacement than to fix it. Look for a B&L mountable focus arm on ebay, http://www.spectraservices2.com/ (just email the guy), or get a new one from http://www.osi-incorp.com/microscope_stands
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Aw yes. A Lecia/bosch and lomb stereoscope. Those frames are fairly common at supply sites. Metrocad in the twin cities carries that kind of stuff
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so the gear rack is fine but the gear is messed? are some teeth ok? chase those with a file and see what you can salvage
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>>1130929
It's part 26 in that list. They teeth are sheared right the hell off. I'l post pics once I have a chance, but it's pretty messed up.
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>>1130919
This is probably more than you paid for the thing to begin with.
http://www.ebay.com/itm/Bausch-Lomb-E-Arm-Stereo-Zoom-Microscope-Focus-Mount-SZ-2-3-4-5-7-/222400021884?hash=item33c813057c:g:H50AAOSwUKxYl0xb
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>>1130958
shit OP, offer $20, these things cant be big sellers
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>>1130929
>>1130934
OP where do you live? Call your local Leica sales guy and see if they can get you part number 11102212. It's the Leica equivalent of Pinion ; 13312690-132. Looks like the part is being phased out, so it might not exist anymore, but it's worth a shot.
PS I sell Leica scopes for a living, but likely can't sell where you live.
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>>1130878
Easiest way is email the company and ask for a new part, they might give you the spec too if you ask nicely.
Next best I would say is measure the other gear thread and guess the diameter
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>>1130964
I live in Mittenstate, and ended up getting that eBay listing. I would like to get that part to repair the one I have if possible though.
Thread posts: 13
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