Marlin: Feature Request - Saving Auto Bed Leveling Matrix

Created on 24 Jun 2016 · 14Comments · Source: MarlinFirmware/Marlin

Hello, I thought it would be nice to have a function to allow to save to EEPROM the matrix saved by the auto bed leveling procedure. I know there was a mod allowing it 2 years ago, but I tried on latest RC version and it didn't work... so that's why :)
To make it work properly, there should be an option to allow or not to reprobe the bed before a print if a custom g-code is entered (just like when you enter G29) or maybe a prompt on the printer's screen to ask the user if it should reprobe the bed or not and thus erase the saved matrix with the new one.
The purpose of saving the matrix is because for now, if you want to print in multicolor, it tends to be difficult if you have auto bed leveling activated. The only way I found to this was by commenting out a section of the firmware saying that when a G28 is launched, it would erase the matrix saved in the current memory (not the eeprom as it doesn't seem implemented at all), and thus, by launching the second part of the print in a different colour but without a G28, it would kinda work for me. But it's not a good way to do it.

That's it folks :)

Feature Request

Source

enlight3d

Most helpful comment

There is a new version of Auto Bed Leveling in the works. It allows (encourages) you to save the matrix (Mesh) that you are using. Sit tight for 2 or 3 weeks and it should appear as a Development branch based off of RC-7.

Roxy-3D on 24 Jun 2016

👍4

All 14 comments

Roxy-3D on 24 Jun 2016

👍4

Marking my Calendar! I cant wait!!

adamfilip on 24 Jun 2016

damn this is great ! Hope it will work good :p

enlight3d on 24 Jun 2016

quick question, does doing a G1 X0 Y0 reset all the values created by G29? I am basically homing ->> BEd leveling >> Going to start position to do Wipe.. Here is my starting script

G28
G29
M109 S210 T0
G1 X0 Y0

Will the G1 X0 Y0 act as G28 X0 Y0?

waran14 on 24 Jun 2016

@Roxy-3D any ETA on RC-7? I know you guys were talking about making RC7 GM release of 1.1, and adding AMBL as a 1.1.1 feature.

jstefanop on 24 Jun 2016

I'm guessing 2 or 3 weeks until it is running well enough that I feel comfortable releasing it. I want it to be pretty solid when it gets released. Right now, I'm delayed a little bit because I'm trying to stay synchronized to the RC-6 RCBugFix and all the probe changes have blown me out of the water.

Roxy-3D on 24 Jun 2016

Will the G1 X0 Y0 act as G28 X0 Y0?

No. It will simply move to your current 0, 0 position.

thinkyhead on 25 Jun 2016

probe changes have blown me out of the water

Pretty much as cleaned up as it will get at this point. I incorporated several suggested changes from Andreas. I think we're done shuffling code all over the place now. Let me know if you need help integrating your UBL changes with the updated code.

thinkyhead on 25 Jun 2016

I'll be OK. It just isn't fun. It rates up there with taking out the garbage and doing dishes! I'll merge with the current RCBugFix in the morning.

Roxy-3D on 25 Jun 2016

👍3

Closing due to marked as duplicate.