The control module on my Snapmaker original does not show a display anymore.
The printer seems to still work when using a PC connected to it.
I just can’t seem to level the bed correctly.
Does anyone know the commands to level the bed from a computer instead of using the module?
Does anyone know of common problems with the control module that might make it repairable?
(I tried firmware upgrade, resetting the module, re-powering the system)
Hey @redtree68
READ IT WELL, I GUARANTEE FOR NOTHING, Z-HOP FIRST BEFORE XY-MOVEMENT
Guide for remote Leveling Snapmaker Original:
https://forum.snapmaker.com/t/calibration-in-snapmakerjs/5034/2?u=xchrisd
Hi @redtree68, what is the status of the touchscreen? Can it start normally or keep it blank? Snapmaker Original cannot run a calibration with Snapmakerjs, since it need some compicated modification. The only thing is that you need to get the touchscreen work or have a new one.
Hi @xchrisd
You and this link helped me greatly 5 years ago, I salvaged an original from the garbage. Anyway I could use the info in this link, specifically the gcode command for bed level, any chance you remember it?
The link seems broken, any help would be great
Thank you
I believe the code I want was something like:
M421 (or M420) X1 Y1 Z(my offset which is -4.5 for me)
M421 X1 Y2 Z-4.50
M421 X2 Y1 Z-4.5
M421 X2 Y2 Z-4.5
From memory I beleive there might have been an S1 or S0 in the code as well.
Hey, glad to help 
For me the link isn’t broken, may try again?
https://forum.snapmaker.com/t/calibration-in-snapmakerjs/5034/2?u=xchrisd
Yes, I noticed you’re quite helpful on here, kind of inspire me to be more helpful as well.
Interesting, I use Brave browser and I just tried on Chrome and when I click the link it says;
"Oops! That page doesn’t exist or is private."
Maybe it is set to private?
Again, thank you for your help.
Also just tried it on my cell phone and the wayback. Strange because I remember opening this link 5 years ago, the only thing I can think of is the webmaster put links on private for new members.
If there is any chance you or anybody reading this could copy and paste the text from that guide on here (not sure if that goes against forum etiquette) or send me in message.
I would be grateful.
Unfortunately, not working for me either
Okay, thanks for letting me know, here is the copied text of my initial post:
Hey @dskerr , if you have followed the last post of your other topic
and you want to adjust or calibrate your machine anyways you could send the snapmaker marlin commands over the terminal. maybe look at this, https://marlinfw.org/docs/gcode
COMMAND: M503 shows you actual calibration settings:
Send: N78 M503*26
Recv: echo:Steps per unit:
Recv: echo: M92 X400.00 Y400.00 Z400.00 E92.60
Recv: echo:Maximum feedrates (mm/s):
Recv: echo: M203 X300.00 Y300.00 Z5.00 E25.00
Recv: echo:Maximum Acceleration (mm/s2):
Recv: echo: M201 X1000 Y1000 Z100 E10000 X_CNC100 Y_CNC100 Z_CNC100 E_CNC100 X_LASER3600 Y_LASER3600 Z_LASER3600
Recv: echo:Accelerations: P=printing, R=retract and T=travel
Recv: echo: M204 P1000.00 R1000.00 T1000.00
Recv: echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s), Z=maximum Z jerk (mm/s), E=maximum E jerk (mm/s)
Recv: echo: M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
Recv: echo:Home offset (mm):
Recv: echo: M206 X-4.50 Y-5.50 Z-5.40
Recv: Mesh bed leveling:
Recv: echo: M420 S1 X2 Y2
Recv: echo: M421 X5.00 Y5.00 Z0.25 //this lines are the Z offsets per position
Recv: echo: M421 X120.00 Y5.00 Z-0.50 // there are four positions on the bed where it is calibrated
Recv: echo: M421 X5.00 Y120.00 Z0.00 // these are my current offsets
Recv: echo: M421 X120.00 Y120.00 Z-0.55
Recv: echo:Z2 Endstop adjustment (mm):
Recv: echo: M666 Z0.00
Recv: echo:PID settings:
Recv: echo: M301 P22.20 I30.00 D18.00 C100.00 L20
Recv: echo:Filament settings: Disabled
Recv: echo: M200 D3.00
Recv: echo: M200 D0
Recv: ok
If you want to calibrate your bed:
G28 : home axis
M420 S1 : set mesh adjustment (calibrate bed height) active
G29 S0 : shows you the actual bed mesh
i have figured out, it is complicated 
my printer doesn´t go to the right points of messurement.
my way works like this:
ATTENTION give the Z some height at every positon NOT to collidate with the bed!
i give you no warranty or something else, if you destroy something, i am guilt-free
go to your position, i.e. X5 Y5 Z1
now, turn your Z down till the paper works for you (like normal calibration) like
Z0.9
Z0.8
etc.
X5 Y5 Z0.5 : calibrate this position to Z0.5:
G29 S3 X1 Y1 Z0.5
X120 Y5 Z0.6 : calibrate this position to Z0.6:
G29 S3 X2 Y1 Z0.6
X5 Y120 Z0.7 : calibrate this position to Z0.7:
G29 S3 X1 Y2 Z0.7
X120 Y120 Z0.8 : calibrate this position to Z0.8:
G29 S3 X2 Y2 Z0.8
here are the points of interest:
Recv: Mesh bed leveling:
Recv: echo: M420 S1 X2 Y2
Recv: echo: 1: M421 X5.00 Y5.00 Z0.25
Recv: echo: 2: M421 X120.00 Y5.00 Z-0.50
Recv: echo: 4: M421 X5.00 Y120.00 Z0.00
Recv: echo: 3: M421 X120.00 Y120.00 Z-0.55
Recv: Measured points:
Recv: 1:0.25000 2:-0.50000
Recv: 4:0.00000 3:-0.55000
Recv: ok
X5.00 Y5.00 : 1 (0.25) : left forward : X1 Y1
X120.00 Y5.00 : 2 (-0.5) : right forward : X2 Y1
X120.00 Y120.00: 3 (-0.55): right backward: X2 Y2
X5.00 Y120.00 : 4 (0.00) : left backward : X1 Y2
now you have to save your settings:
M500 : save to eeprom
check your calibration settings:
M503 or G29 S0
FINISH
feel free to contact me,
greets Chris
Yes, this is what I was looking for. Thank you.