Quote:
Originally Posted by les g
Dont worry about him he,s just an old fart. 
he probably thinks we are talking about teflon ...lol
loads and loads of our plant use modern day plastics like delrin as bushes for pedals and linkages etc and they are out in the sh@t and elements all the time, modern plastics are a bit more stable nowadays.
so use a good quality one.
As for the pivotif you are going to use a bolt use a shouldered bolt so the delrin is not running on threads.
cheers les g |
Acetal is bonkers. I spent hours machining stuff when I worked for a motorsport firm at Silverstone only to find the holes I bopped up the spout were undersized yet I used the right drill bit...it seems the speed of the machine and how quick you bop the holes has an affect as well as I never had one hole that was the same.......freaked me out, it was as if some ghostie type changed the drill bit each time i used it.
Facing off a rectangle of acetal in 3 jaw chuck was just as frustrating...
