For astro equipment, there are so many parts that connect together by threads. Some of them are thin and don't have great grip surfaces. I can't think of the number of times I had two parts threaded together but I was unable to remove them easily.
Some solutions I've come across for unscrewing them
1) Using two strap wrenches around two cylindrical surfaces if they're thick enough.
2) Putting rubber bands around two different cylindrical surfaces to provide better grip and twisting with arms.
3) Using a wrench over a rubber band on a smooth surface plus a strap wrench to grip the other surface.
4) Using two nuts on a screw (without a head) that I'm trying to remove. Top nut pushes down on bottom nut, then use a wrench on the bottom nut.
5) Removing a lens filter from a lens by pushing the lens down on a yoga mat and turning.
6) Putting two alan wrenches into two pre-drilled holes on the surface of what I'm trying to unscrew and turning the alan wrenches together so they provide resistance for each other
7) WD-40 (never seemed to work for me)
There are just so many parts that screw into other parts and I'm positively exhausted trying to unscrew them...
what were your techniques?
Edited by joelin, 06 March 2018 - 03:18 PM.