Hello! My Nomad 883 Pro is very loud one of the reasons it is so loud is just it’s stepper motors. IIRC sound from steppers are usually come from low microstepping. Is there a way to change microstepping, say to 1/8 or even 1/16? Hardware is mostly custom made and i am not sure if there are any jumpers.
As an alternative route - can i assemble my own GRBL board with Trinamic drivers and different microstepping. Will it work? How to wire custom BLDC motor controller to an Arduino UNO?
I think getting that Nomad oiled up or fixed will be 10x quicker than rolling your own controller, but for your information it is normal that CM does not connect to an Arduino Uno flashed with GRBL (CM expects to find a “Shapeoko” USB device, and ignores other USB ports). If you do need to go further down that route, you can just switch to another generic g-code sender (e.g. UGS or CNCjs) that lets you pick a specific COM port, and it will work.
Ok, i will try to lube everything! Haven’t done this after getting this little beast, hope it helps, but my experience with 3d printers was about the same and it didn’t help much, i just improved soundproofing everywhere to make it tolerable.
But how i can then replicate 1-to-1 Nomad 883 firmware? Support answered me that i should write firmware as is and it should work. What extra step i needed to make it work?
Carbide 3D contributes to Grbl, and our defaults are in a header file somewhere — if you wish to roll your own Grbl, if you enable the Carbide 3D Nomad-specific defaults it will be exactly the same as ours save for time/date stamps and any updates since we last compiled.
As noted, the Carbide Motion controller has micro-stepping built in — I’m pretty sure it’s 8x — but at my day job now, so not easy to check.
I tried to lube X axis, no effect at all. Sound is clearly from steppers and very little sound from ballscrew. I think table under nomad is to blame, got new one, will see if it helps.