In article <2j8u5a$hka at apakabar.cc.columbia.edu>, dan at cubmol.bio.columbia.edu (Daniel Zabetakis) writes:
>>> Does anyone have experience in making dissecting needles from optical
> fiber? We've been doing it for a while, and when you get a good needle it
> works fine. But it is very difficult to get a good needle. The tip of the
> fiber almost always shatters when cut with a razor blade.
> Does anyone have a favourite technique that gives a better yield?
> This article is for entertainment purposes only. Any facts, opinions,
> narratives or ideas contained herein are not necessarily true, and do
> not necessarily represent the views of any particular person.
Yes. We use optical fiber all the time. The best way I have found
is to place an optical fiber on a glass slide. Take a cover slip and
place it on the fiber at a 45 deg angle and gently press down. The
needles we make this way are flat with few burrs on them. Examine the
ends in the scope to pick a really nice one.
Eli Lilly and Co.
All opinions and advice offered are my own and do not represent in any form
those of Eli Lilly and Co.