Repairing cross-threaded helicals

Post by **melek** » Thu May 07, 2015 1:59 pm

I've been working on a Super Ikonta IV, and aside from other issues, I managed to somehow cross-thread the helicals.

Has anyone every successfully overcome this? I have some ideas that I'm going to try, but I thought I'd put out a call to see what others have tried.

Martolod · Post by **Martolod** » Thu May 07, 2015 5:29 pm

a set of Key Files, a jewellers vice, a good light source a cork or two to hold the helical steady and a slow steady hand ....a magnifying loupe will help too

LarryD · Post by **LarryD** » Thu May 07, 2015 5:53 pm

I had this with a soviet Jupiter lens. I found it was quicker and easier to just get a new front helical.

Martolod · Post by **Martolod** » Fri May 08, 2015 12:42 pm

LarryD wrote: I had this with a soviet Jupiter lens. I found it was quicker and easier to just get a new front helical.

...or you just could do that......

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