Update 2
Now that I have the printer working I decided to check the fine settings and see how it does. I used some Protopasta HTPLA to print some toys for my son.
First was something from the Lulzbot samples. It printed out great using the factory settings.
Next I printed a Super Mario figure. This was on high speed settings, but about a 3rd of the way up I had some Z hop. During homing, I can hear a high pitched sound, so there may be some biding on the Z axis. It’s not a lot since it moves freely and the steppers sound smooth.
Since the 3 doesn’t have any stepper dampeners on the Z axis, I wanted to add some to quiet the machine down a bit. On the 4 the lower mounts are different to accommodate the MOONS steppers and dampeners.
I also noticed when I was checking the wire harness for the z/x axis that the 4 has x-end mounts that help with wiring and strain relief. So I decided to print these parts from the 4 and a few others to continued to update the 3.
