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See docs:blackbox:connect-nema23-reversed-y2 [OpenBuilds Documentation] for a Reversed-Y2 Motor wiring setup (very simple, just reverse wiring order)
Good point too. @Andy Cullen please post the gcode file, and a Grbl settings backup too
Grip the endmill and push it up and down, see if you detect movement in the Z axis, or even relative to other axes. Or, does the "jerky" match...
NB PLEASE DO NOT FLASH firmware to address a mechanical issue. It is definitely NOT a firmware issue, and random actions such as the ones you...
Old device, old browser, outdated browser doesn't run modern codebase. Despite being in essence a "website" it still needs proper modern javacript...
Which version of CONTROL are you on?
Z-axis steps per mm Calibrated? Or could be that you have Z axis Acceleration or Max Rate set too high causing stalling during retracts. Stalling...
Check the pins inside the connectors, a hard pull on the cable, can dislodge the pins from the housing - just push them back in, alternatively,...
For v-carving, see Vectric Products - OpenBuilds Part Store
M3 needs an S-word, eg M3S1000 (if $30=1000) Using the relay as plasma trigger? It is a relay. No voltage involved. When the relay activates it...
Theres a likely problem, you have $2=2, please set $2=0 (default) See gnea/grbl
See Post #2 above any tutorial on Openbuilds cam-gcode generator ?
Thats not running plain Grbl, its GrblEsp32 - please direct support questions to the vendor you purchased it from, they will be more familiar with...
Use the Backup Settings button in CONTROL to get a much easier to read txt file out, use the Upload a file button below the reply input to attach...
Did you maybe configure slightly different Grbl settings on new BlackBox? Ie faster max rate / acceleration, machine now runs faster than before...
The jitteriness om the second video, around the 3min50 mark is buffer starvation, PC isn't feeding GCODE fast enough, buffer runs empty, it pauses...
From our experience, an older machine, start loosing accuracy, is almost always either something rattling loose, or wiring (but wiring symptoms...
PS: These are 1A max motors, BlackBox is 1.2A minimum, in fact these are tiny motors. You may want to grab proper ones: NEMA 17 Stepper Motor...
More likely: docs:blackbox:faq-identify-motor-coils [OpenBuilds Documentation] Current setting for NEMA17s is all the way down - 1.2A on the far...
OpenBuildsCONTROL, ie the official OpenBuilds Grbl host for the last 3-4 years now, available at the "SOFTWARE" link on the menu right at the top...
