Klipper for CNC: initiatives and projects list

General Discussion
37

Hello everyone, new here. Thank you so much for making this. I’m doing first CNC, and started with Lowrider 3 last year. Insisted on using klipper, tried multiple repos, failed, stuck and abandoned. Finally starting past few months on MPCNC and successfully running it on klipper using this repo. I’m happily running XYZ Probe using the G38.2, finallyyy!! Thanksss a lot. :grin:

Now i only start with basic 3 axis CNC, and XYZABC is probably out of my understanding for my limited programming knowledge for now. But may get there later after getting more basic experience in this.

I’m facing few bugs though, any help will be greatly appreciated as i cant figure out the cause due to my limited understanding of programming.

  1. I’m getting “mcu shutdown: missed scheduling of next digital out event” at the end of all my milling. Successful, but at the end move, it shows error everytime. I’m using Fusion360 and postprocessor from flyfisher604 github. Kinda troublesome when i wanted to continue my next job from previous coordinates. I’ve attached my klippy log and any suggestion to fix this?

  2. I tried the printer.cfg config for the [printer] kinematics section. It shows error and i cant start klipper. I tampered a bit and probably may be in a funny / wrong way, but it works.

Instead of specifying:

[printer]
kinematics: cartesian

instead i use:
[printer]
kinematics: cartesian_abc
axis: XYZ

I attached my printer.cfg for reference. I don’t understand why i got the error, and why this works, but it does. CMIIW please.

  1. This last one is not a bug, but more of a cool feature i wish klipper may have for CNC. Expanding on G38,2, one cool thing i like from ESTL Cam is the ability to fix misaligned stock / probe position.

I guess probably it uses G68 & G69 G Codes: CNC Coordinate Rotation, which exists in Marlin but not in klipper now. I don’t know what it takes to make that happen but it will be really cool to have.

That’s about it for now, thanks a lot for making this happen. Finally Klipperized my MPCNC, woohoo.

klippy.log (7.6 MB)
printer.cfg (13.4 KB)

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