Move Z axis close to bed to extrude material via terminal?
Hi, I got a MK3S+ and I'm using Octoprint to control it. I wanted to experiment with some routines for my start GCode to extrude a longer line and such, so I wanted to test how much material I'd have to extrude over a certain length.
But apparently I can't lower the Z axis below 0.15 through G codes sent via the Octoprint terminal. What am I missing here? I couldn't find anything relevant on google or the forums since I didn't really know what exactly to search for.
RE: Move Z axis close to bed to extrude material via terminal?
0.15mm is the safe limit for 'Z height' set in the Prusa Firmware.
In your post you say "I wanted to experiment with some routines for my start G Code to extrude a longer line and such, so I wanted to test how much material I'd have to extrude over a certain length." and then in the next sentence you complain that you cannot lower Z below 0.15mm
surely you should b working on 'X', 'Y' and 'E' axis to extrude longer lines?.
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Move Z axis close to bed to extrude material via terminal?
The issue was that even though the display was showing Z 0.15, it definitely was a lot higher.
Turns out, apparently you have to either do a mesh leveling routine, eg G28, or apply the stored mesh before it will apply the proper Z offset. After I had it do a G28 I could lower the Z to the right height. Before I only did the homing via the Octoprint interface and that probably just didn't apply the stored mesh, obviously.