On Sep 6, 1:51 pm, wrote:

Greetings Bob and Dan,
The glass tube idea will only work if the tube is weak enough to break
instead of forcing the spindles to keep in step. I think I have some
glass tube so maybe I'll try that.
Eric

If the glass tube forces the spindles to keep in step, would not
whatever you are using this for also force the spindles to keep in
step.

Dan