This post turned into a troubleshooting thread for my build so I'll recap what problems were talked about here and the solutions.
- Grinding noise in Z tower
wire pins weren't tight in the connector that goes to the duetwifi, take them out -- gently pry out the locking burrs so they properly lock into the connector
multiple reasons: ptfe insert in the SE300 was over tightened and kinked, eztruder aluminum exit component shifted when retracting, thermistor possibly unreliable -- all replaced
- FSR not triggering at printing temperatures
Calibrate at a lower temp, then set the temp up higher
- Belts loose
User error, I was able to tighten them up with the help of a screw driver and some gentle nudging.
OK, this isn't my first rodeo, but I don't see anything in the way of the motors or belts. The movements are very "jagged" or "stuttering". I'm afraid to do the First Probe. It skitted across the bed and then probed a few times but sounded horrible so I emergency stopped.
Also, the Z tower homes down first... I know, check the wires, but they are all correct as per the instructions: Blue, Red, Green, Black.
I had some really close blue/green wires, but I quadruple checked in good lighting--I'll check again after posting.
Anyone else get this problem and know what I did wrong?
*edit, here's a photo of the duet in case it helps.
And, a youtube upload (never did one before...)
*edit2, I forgot to mention that I did download the latest config.zip and upload it... I've got the first probe macro.
*edit3, I got it to accept a homing so I could test moving again. The Z axis alternates from going in one direction then the other every time I ask it to move in the same direction.