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Marlin bed dimensions

Posted by Royce 
Marlin bed dimensions
June 28, 2017 07:07AM
Hi folks,

I finally made it to finish my Prusa style Toolson MK2 printer.
Now I'm facing the following "challenge":
The bed has a size of 220 x 220 mm. On top I attached a PrintBite plate with 200 x 200 dimensions.

Now, I need the front left corner of the PrintBite to be 0/0, therefore the center should be 100/100.
At the moment, the prints get printed slightly off center, they should of course also be printed in the center of the build plate.

I already found the section in the configuration.h (I think) which will guide me to the goal, but I don't know how to determine the correct values:
#define X_MAX_POS 200
#define X_MIN_POS -45
#define Y_MAX_POS 170
#define Y_MIN_POS -20

Is there any special way to achieve my goals / set the values right?

Thanks in advance!
Re: Marlin bed dimensions
June 29, 2017 12:57AM
use a ruler...

eg X_MIN_POS -45

so from the X min position to the 0 position is 45 mm. Measure what it should be to the PrintBite 0 and replace 45 with that value.. leave the -, it means to the left of 0

repeat for Y

NB you also need to update your slicer with the correct bed dimensions
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