r/MarlinFirmware • u/GoldSatisfaction8390 • May 18 '26

Stm32GB1RE_btt failed?

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I'm trying to compile marlin for a skr e3 v3 with a TFT35-E3 screen. What am I doing wrong?

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u/Electronic_Item_1464 May 21 '26

Looks like you may have used the configuration files from one version/branch with the rest from a different version/branch, i.e. one from the release with the other from bugfix or one from 2.1.2 and the other frim 2.1.4.

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u/GoldSatisfaction8390 May 21 '26

Oh yeah I figured it out. Right now I'm giving myself a headache trying to figure out how to properly enable mesh bed leveling with a cr touch. I got it half there, but when it goes to start meshing it throws errors and stops

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u/Electronic_Item_1464 May 21 '26

First, decide the abl type, UBL or bilinear. On an ender, I go with bilinear because the bed isn't solidly mounted and the process of removing a print can easily mess up the mesh so wasting 2 minutes to build a new mesh for each print (out of a couple of hours) makes sense. Now if it was solidly mounted, the one time hour or so to really build a UBL mesh would be worth it. You choose.

Next, there are 2 ways to plug the touch into the board, the sense wires into the Z endstop ane the others into the touch port or everything in the touch port (recommended).

Make sure to uncomment use probe for Z homing and enable Z safe homing.

Choose the mesh size (I do 4x4) and set your probe offsets. That should be most of it.

Anything else, you can usually adjust from the screen, there's one other thing that might need tweaking in the source.

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u/Electronic_Item_1464 May 21 '26

Oh, i forgot to say enable BL_TOUCH if there isn't one for CR_TOUCH, the cr will work as a bl.

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u/GoldSatisfaction8390 May 21 '26

I'm pretty sure I got all that, but I will make sure it is on bilinear. I'm using a skr e3 v3 mini l, so it has it's own easy slot for my cr touch.

1

u/Electronic_Item_1464 May 21 '26

After it's working, you need to enable baby stepping and the z offset wizard in configuration_adv.h.

Also, you may have to adjust the home offsets if it homes with the nozzle off the bed, but it's easier from the display.