raykholo said:
Julia, is there something in particular you are looking to change, an issue you are looking to solve, or are you just trying to get better acquainted with your printer?
It seems like you've already realized this, but that article shows how you can change these settings in the firmware and upload the updated firmware to the Arduino. Only problem is that Gordon hasn't released his 'customized' Marlin file on the download site. You can try pulling it off the Arduino, but that's not worth the trouble, in my opinion.
A little of both. Familiarity so I can solve problems, and problems there are, yes. I'm not new to 3D printing (I have two Ups and a Zortrax), but I am new to reprap, so just getting my head around all these parameters.
I'm liking Repetier a lot, thanks for that recommendation. And so far it's the only one of the bunch that I've been able to get talking to the gMax from my MacBook, which is a big point in its favor
I would like to get Creator working, though, for its great support control.
Regarding specific problems, I've been working with a 40mm test cube. For some reason Slic3r defaulted to "honeycomb" fill, which the gMax Y axis totally could not handle at the default settings no matter what I did with the stepper drive control pot. So I took some somewhat blind stabs and cut XYjerk down to 4, VmaxY down to 400, and AmaxY down to 1,000, and it worked! Better still with nice linear fill. I don't really need this thing to be a speed demon, I just need it to print with decent quality reliably.
The remaining issue I'm seeing is "ridges" up and down the vertical walls, which I think correspond with the cycle of 3 perimeters. I suspect that may have something to do with the "extrusion multiplier" but I'm guessing.
You're right, some of the parameters are discussed on the Repetier site, but I think not all of them. Maybe I have to dig into Sprinter/Marlin docs...
Also, right now I need to manually enter my modified parms with the encoder at the start of every print; I guess I need to upload a new config file to the printer to solve that?
Do you recommend abandoning Marlin altogether and installing the Repetier firmware?
Thanks for your help,
Julia