Melty on the left / Gappy on the right - no goldilocks to be found

[gwfami]

Try this link.

How to do a larger than 3 x 3 matrix level

So here’s my attempt at doing a leveling matrix larger than 3 x 3. Please be advised that this is not for the faint of heart. If you mess up this process you can bury your nozzle into your print surface. I know, I did. I’ll try and tell you how to avoid that. If you aren’t having any trouble with the first layer of printing then this process isn’t for you. I am doing this on an A250, so you may have to change some things for your size Snapmaker. The controller has a version of leveling that the…

You will have to have a computer hooked up to the SnapMaker via a USB cable. I use a terminal emulator to connect to the snapmaker, but you can also use Luban to connect to it and then enter the commands in the workspace console.

When I do it I enter the following commands.

G1029P11

This sets it to an 11X11 leveling grid. The P value is the grid points.

G1029A

This begins the auto leveling process. It checks each point 3 times, so it will take a little while.

The head will stop at the last point and require you to do the last point manually, just as you would normally do.

G1029S

This saves the leveling matrix.

G1029D0

Never use this one, but the link says it ends the leveling processes and turns the auto level on. Not sure if it’s necessary or not but doesn’t affect my printing at all.

M420V

This shows you the just created leveling matrix so you can see it has changed. This command is why I used an emulator, as Luban doesn’t allow me to copy the matrix from the console (using a Mac). The emulator allows for the copy command. I copy it and put it into a file for later stat analysis.

One thing that I discovered is that if I do the final z offset when leveling according the the instructions, that when I pull out the leveling card, the head drops a tiny bit. This could be part the problem that you are running into. What I’m doing now is to do the finally z offset when the card just begins to catch. If you do it so that it pulls in one direction and wrinkles in the other, as per instructions, it seems to cause the head to drop.

Here’s a long post that I started when I began to go bald from pulling my hair out.

Stumped and tired

I’m just about ready to pull my hair out and get rid of this machine. After nearly 1 1/2 months of trying to get a consistent print, I still can’t get the first layer to turn out acceptable, and the first layer is going to be the one seen, as a cap will go over the top layer. I’ve tried luban and cura both. I’m still getting gouging and holes in first layer. On the off chance that I do get a decent print, I immediately try to replicate it only to have the issue reappear. I’ve leveled it sev…

I eventually had to get SM support involved and they sent me a new print module.

Hope this helps.