Mesh Bed Compensation with inductive probe

Work Horse XL

Guys It's working great now. Thank you so much.

Removed the G92 Z0. Then adjusted the trigger point to get rid of the baby steps and it did great.

I have one other question I have dual Z motors and right now I set level with the dual end stops I have on each side. This works fine. My question is How would I take advantage of Auto bed leveling or do I really need it at this point.

Thank you again

Darrin

fcwilt

@Work-Horse-XL said in Mesh Bed Compensation with inductive probe:

I have one other question I have dual Z motors and right now I set level with the dual end stops I have on each side. This works fine. My question is How would I take advantage of Auto bed leveling or do I really need it at this point.

How are the two Z steppers connected to the board?

The configuration only shows drive mapping of Z0.3.

Frederick

Phaedrux

@Work-Horse-XL said in Mesh Bed Compensation with inductive probe:

; Custom settings
M584 X0:1 Y2 Z3:4 E5 ; assign stepper motor channels
M376 H10

Your M584 command must come earlier in config.g. Currently you have two of them. Replace the first one with your second.

https://duet3d.dozuki.com/Wiki/Gcode?revisionid=HEAD#Section_M584_Set_drive_mapping

Garfield

Other than a mesh bed level every now an then I don't bother, you are limited to what you can do automatically anyhow depending on your bed mounts. Unless you use a kinematic mount the mount points are likely to be pretty rigid so offsetting the steppers could lead to binding. Once it is as level as you can get it mechanically it shouldn't change unless you abuse the machine / move it around etc - all depends how rigid things are, the more rigid you make it the more accurate things need to be.

The mesh bed level works slightly differently and attempts to compensate for bed inconsistencies - got to confess though I'm not entirely sure how Dave implements it.

Work Horse XL

@Phaedrux Thank you Phaedrux is the M376 H10 in the correct location?

Phaedrux

Yeah that one doesn't matter. I just included it for positional context in our file.

fcwilt

You likely can use auto bed leveling.

Since you have dual Z endstops can we assume the you home the bed without any issues?

If the Z homing is working well are the endstops adjusted to get the best bed leveling when homing?

Frederick

Work Horse XL

@fcwilt Z stepper are on plug 3 and 4 driver output on the Duet 3 board.

Work Horse XL

@fcwilt Yes the dual end stops works very well. The more I think about it, it's best like it is. This is a very ridged large plat form printer. Moving the Z independently is likely going to bind things or could. It now seems to be working really good. Just did a small print and I'm happy with the results.

I know it will have more issues as it's newly built, and it has been a struggle getting to this point.

Thank you very much for the help.

fcwilt

@Work-Horse-XL said in Mesh Bed Compensation with inductive probe:

Moving the Z independently is likely going to bind things or could.

Keep in mind that if the Z probing used for auto leveling determines the bed is level the Z steppers will not be activated.

If the bed was very slightly off level then the Z steppers would only make tiny adjustments.

Frederick