Quote:
Originally Posted by FlashDrive
Just gobsmacked at the work and care that has gone into making this beauty ..... what craftsmanship when you have the right gear ... lathe / milling machine / etc
A labour of Love ...
Col..
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Thanks Col, but it also takes a bit of insanity, I think.
Quote:
Originally Posted by multiweb
+1 Been following this and it's just sub zero cool. The mechanical engineering is incredible but the optics making is mind boggling. The focuse looks like a clement design. Not too sure how the little yellow wheel makes the whole thing go up and down. Is it just a simple threaded bush? Couldn't quite make it from the spare parts shot  |
Thanks Mark,
The phosphor bronze part, second part from bottom right corner, screws into the back plate and the thumb wheel has a threaded shaft that engages it. The threaded shaft has been split to act as a spring and has an M3 grub screw down the middle in order to spread it apart in a controlled way. The spring action is needed to get rid of backlash. The split shaft is made of hard alloy - Al7075 - and is hard anodised.