Rectangular Grid Leveling Problem

[Cihan Alak]

Hello Friends,

I have a problem with rectangular grid leveling. I have a probe offset like -48,0,0. 

When i send G32 command, firstly the head goes 0,0 (without offset, it must go 48,0) try to find first Z height. So my probe is outside of bed and can not find bed at 0,0. 

How can i solve this problem?

leveling-strategy.rectangular-grid.enable               true     # The strategy must be enabled in the config, as well as the zprobe module.
leveling-strategy.rectangular-grid.x_size               400       # size of bed in the X axis
leveling-strategy.rectangular-grid.y_size               185       # size of bed in the Y axis
leveling-strategy.rectangular-grid.size                 7 # The size of the grid, for example, 7 causes a 7x7 grid with 49 points.
leveling-strategy.rectangular-grid.do_home         false     # Must be an odd number.
leveling-strategy.rectangular-grid.probe_offsets        -48,0,0    # Optional probe offsets from the nozzle or tool head
leveling-strategy.rectangular-grid.save                 false    # If the saved grid is to be loaded on boot then this must be set to true
leveling-strategy.rectangular-grid.initial_height       5       # Optionally an initial_height can be set that tell the intial probe
                                                            # where to stop the fast decent before it probes, this should
                                                            # around 5-10mm above the bed

Regards

Cihan Alak

[Simon Khoury]

Where is your probe located physically in relation to your nozzle? 

Have you tried the offset as 48,0,0?

[Ryan Peterson]

I'm having the same issue. Did you get this resolved and how? I can change the probe offset to different values with no effect on where the first probe is done... currently driving me crazy

[Ryan Peterson]

I have a bit more to add. The probe offsets work fine for 3 point leveling, but not for the rectangular grid leveling. I made sure to clear any saved grids and/or config_override

[wolfmanjm]

what version are you using?

[Ryan Peterson]

I flashed firmware.bin from the edge branch on github. I didn't see the firmware-latest.bin before, but I'm guessing you'll tell me to try that. Or am I better off compiling a nightly build?

My current version is as follows:

Build version: edge-8e4a64c, Build date: Apr 24 2017 11:46:31

[wolfmanjm]

There have been various fixes not sure if they made it into latest, so it is best to compile your own fresh from the edge branch if you can, otherwise try latest

[Ryan Peterson]

I flashed a pre-compiled nightly build from a few days back. The offsets are now taken into account while probing with the rectangular grid leveling. Thanks for your help!

[Jeff Sondag]

I had to add the following to mine. I don't know why this stopped this from happening, but it seemed to.

mm_per_line_segment 1 # necessary for cartesians using rectangular-grid