Quote
Dust
4 is over constrained, unless your rails are 100% parallel it causes issues with to much friction at the end that is off
no home machine has rails that are 100% parallel
In fact, the 3 commonly used are still over constrained but the flexibility of the mount (tie wrap, slit cylinder, plastic frame), the excessive play avoid binding.
With 4, it may not be flexible enough, thus more likely to bind.
So, a crappy mount to compensate for a crappy assembly
Edited 1 time(s). Last edit at 04/14/2018 01:56PM by MKSA.
"A comical prototype doesn't mean a dumb idea is possible" (Thunderf00t)