Simple Cost Effective Designs.
E3 CNC Router Troubleshooting Guide
The purpose of this document is to give those new to CNC routing is a quick reference for the common
issues of getting the E3 CNC router up and running.
Contents
My stepper motors are running backward. .................................................................................................. 2
My Z axis is not homing correctly ................................................................................................................. 2
My E3 will not home correctly (diagnosing home switches) ........................................................................ 4
My firmware does not seem to be working .................................................................................................. 5
I tried to use Easel, now my machine does not work correctly. ................................................................... 5
I get and error when I run a g-code file made with F-engrave ..................................................................... 5
My Z stepper motor wobbles excessively ..................................................................................................... 6
My machine seems to be skipping some commands ................................................................................... 6
What are the alarm code descriptions? ........................................................................................................ 7
How do I change my current setting on the stepper motor drivers? ........................................................... 8
Setting the current on the A4899 stepper motor driver with a volt meter. ............................................. 9
Setting the current on the A4899 stepper motor driver without a volt meter. ..................................... 10
The DeWalt motor shaft came out during assembly. ( DeWalt brush remove and replace) ..................... 10
This guide is not complete.
Please check back from time to time. We plan
to continue to add to help you get started.