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Bed Center Calibration Tutorial (using parametric crosshairs with square)

by 0scar Apr 28, 2017
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Awesome, thankyou for this. The bed center on my tronxy x3a was quite a long way off, but after your instructions, dead center :D
Only issue I had, which I think is a bug in the firmware, if I tried to move Y 2mm (M206 Y-2.00), it'd jump 10mm the wrong direction, but then I retry it with M206 Y-12.00 and it went straight where I wanted. I was also putting X0 in there when making a change, and that caused the X axis to move unexpectedly as well. Weird. Oh well, sorted now anyways.

You're welcome. Note that M206 sends an offset, not an absolute value. You must accidentally changed it, but good thing is that it is spot on now! Have fun!

Very Helpful,

my prints are now centered and I can now use my full bed!!

Does it matter where we add the GCode? like after what line?

Usually people hook their printer up through USB and start a program that can interface with the printer through a so-called console window. In that console you type in your gcode commands to control or communicate with your printer. Various applications can be used for this; OctoPrint, Pronterface, Repetier Host, and probably many more. With all that said, it is perfectly legit to make a .gcode file yourself and run that file using the SD card.

Ok Thanks!

So simple and so effective. Great jog!! This helped me center my printer when I added a E3D on it.

Thanks, you're welcome!

When I do a print preview in s3d it shows the outline and circle but not the cross hairs. Just using the default s3d settings. Not sure what setting needs to be changed? Is there cross hair lines infill / internal walls?

I do not own a s3d licence so I cannot help you. It slices perfectly in Slic3r. But, all you need is the outer square to measure the differences to the edges. The crosshair just conveniently marks the centre of the bed when executed correctly.

When I try to re-scale to 75 and it doesn't print anything. Can you make the lines thicker as version 2?

I have added a step file of the 100% version for you to change.