MakerGear Forum

I've been chasing down how to calibrate the "K" factor for Linear Advance now that I've updated the Marlin firmware in my M2E printer. One article I ran across mentioned that OrcaSlicer has an entire suite of built in calibration tools, including for Linear Advance.

I dug around in the OrcaSlicer github site, and there's no mention of Makergear at all, other than two queries about support. It sounds like I may have to set it up from scratch.

I figured before I did that, I'd check here to see if anyone can give me a head start. Does anyone have settings/parameters for OrcaSlicer figured out for the M2?

Thanks!

check out the facebook makergear group, a bunch of people there are using that slicer.. I am still with S3D 4.01.. every time I try another slicer I end up back with the devil I know.. Good luck!

I'm making progress... I have a model I recently printed using S3D, and using Prusa Slicer. It's a small thick walled cylinder with a dovetail stuck on one side. The S3D print came out pretty clean, but the Prusa Slicer one is FULL of stringing, despite telling it not to cross open spaces. I set it up in Orca Slicer, and it was VERY bad. The dovetail bit looked like it was trying to print normally, but the cylindrical sections were a total mess, looking vastly under extruded. I watched a print closely and it didn't appear to be making any attempt to print most of the model correctly.

While examining all of the 300 various printer, filament & process parameters, I saw something called "arc fitting" go by, which was turned on by default. I haven't dug into the details, but it isn't used in the other two slicers, and I didn't recall seeing it enabled when I compiled the Marlin 2.1.2.5 firmware. I turned it off, and BINGO! Now the print looks like it's supposed to. It was still cooling off when I checked last, but at first glance, it actually looks even better than the S3D version. Even though Orca is at least partly based on Prusa Slicer, it looks WAY better than what Prusa Slicer spits out.

Assuming a detailed examination doesn't point out any major issues, I'm going to run through their various calibration prints next. They start with a temperature tower, then adjust "flow" (extrusion multiplier), retraction and finally Linear Advance.

I don't do FaceBook, so I will have to rely on GitHub & Reddit for Orca Slicer help. It's good to know there's a MakerGear group there. I suppose I can have my wife post a query for me.