Разрабатывая открытый проект 4-х экструдерного принтера Z-Bolt, мы столкнулись с проблемой выбора экрана для управления принтером. Из имеющихся экранов лишь решение от Duet Wifi умеет управлять...

UPDATE: I dont recommend anyone to do this upgrade anymore. It is not really worth the effort, even if it is quite cheap if you already have all the tools to do it.
Get a better 3D Printer Board with OPEN SOURCE firmware, not that Trigorilla Pro proprietary rubbish if you want to be flexible...

How I replaced the A4988 stepper driver from the new Mainboards that recently had been shipped by Anycubic. They are soldered directly onto the PCB and cannot easyasly changed by pluging them out...
Thanks to JoeyRay who convinced me to do the mod.

I currently struggle  with skipping steps in the X Axis. I dont know yet what is the cause of this, maybe a power issue due to wrong RSENSE resistors. I used 0.18 Ohms but for 1.5A steppers I should maybe use 0.15 Ohms. Currently playing with VREF. Could also be a speed issue...

EDIT:
It turned out that the skipping steps in X are possibly a speed Firmware issue. By lowering "Travel Speed" in Cura to 60 and all "Acceleration" to 1200 I get no more skipping on X while printing…