Quad Gantry Level, Pass POINTS variable at runtime

Sirup · June 12, 2025, 10:32pm

Basic Information:

Printer Model: SV08
MCU / Printerboard: SV08
Host / SBC NIL

Standard Klipper Install no major changes (SV08 Mainline Klipper Mod)
I have several different build plates with a default bed of 350x350
QGL is static as far as points go.
I want to use different sizes of bed plate centered, with a macro to calculate the points based on a plate size sent form an ORCA profile - but QGL will fail with static points, due to a smaller metal build plate being used (induction probe i believe)

Is there a way to send a points variable to the quad_gantry_level macro
Gemini AI had me believe there was a commit “quad_gantry_level: Allow overriding probe points at runtime” around v10 but I’ve found no trace of it.

Obvious critical things like you can wreck your printer if you forget which plate is configured, yeah i know, but that’s my problem not klippers.
Bed meshing needs a slight change too, dynamic macro etc.

I would value the customisation more than im worried about the problems. Ditching the probe for a physical one is the failsafe solution i guess.

EDIT from the future - I did the changes myself in klipper and have it now working successfully with different plate sizes and no head crashing.

github.com/TrustbutVerify0/Multiple-Plate-Size-Dynamic-3d-Print

Readme.md

main


# Use Multiple size plates on printer bed

### The problem: i have a 350x350 printer but multiple old plates with different textures and hologrm effects and dimensions that i want to use with the new printer.

This is configured and working on the SOVOL SV08
I use this to allow me to safely use different sized plates, ie a 256x256 plate on the SV08 350x350 bed.
I avoid bed crashes by configurein QGL dynamically and ALWAYS centering the plate on the bed. 
The macro's below take care of the calculations for the QGL points and purge position offset

To allow the defaul Klipper QGL to accept a points parameter we need to add this option to the default klipper qgl command; 
Open this file on the printer Klipper OS: **/home/biqu/klipper/klippy/extras/quad_gantry_level.py**
Replace this section with:

    def cmd_QUAD_GANTRY_LEVEL(self, gcmd):
        self.z_status.reset()
        self.retry_helper.start(gcmd)
        self.probe_helper.start_probe(gcmd)

This file has been truncated. show original

Sineos · June 13, 2025, 6:38am

As far as I know, the command cannot pass the probe points. It might even require a new command syntax since you need to pass a multiline value.

system · August 12, 2025, 6:38am

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
Quad Gantry probing points positions General Discussion	1	65	December 11, 2025
QUAD_GANTRY_LEVEL aborts with extremely high adjust values General Discussion	16	2730	January 25, 2024
Quad_gantry too many errors General Discussion	6	386	May 11, 2024
Faster QUAD_GANTRY_LEVEL Macro Macros	20	4576	August 8, 2025
First Klipper Build Actuator Help General Discussion	8	110	July 4, 2025

Quad Gantry Level, Pass POINTS variable at runtime

Basic Information:

EDIT from the future - I did the changes myself in klipper and have it now working successfully with different plate sizes and no head crashing.

Related topics