Prusa i3 printer is not in the right size

Hi everybody!

I have a small problem with my Prusa I3.
I print a square that is 100 x 100 x 5mm (ABS)
The height fits 5mm
But it measures only 99.5mm in x and y

All parameters match:
"Belt Calculator Repetier Host"
Pulleys screws are tightened.
Stepper motor should have the right current
They do not lose steps.
The Printing speed I have set down to 40mm / s
Belts I tightened up a bit, I dare not tighten them too much.

Can my belts be the problem ??????
If the temperature is too high ??????
Head = 255C
bed = 120C

I have the same problem in both Repetier Host and Cura.

Here's my Cura setup.

Maybe x and y calibration in Marlin.

As Putzer said -> Calibration. Did you calibrate the axis well?

Also I have never printed in ABS (I hate the warping issues and my heated bed never reaches 100°C) I have heard that ABS prints often suffer from shrinkage.

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Quote
Putzer
Maybe x and y calibration in Marlin.

Excuse me, but I can not see that it makes any difference Marlin or Repetier Host

Quote
ianmcmill
As Putzer said -> Calibration. Did you calibrate the axis well?

Also I have never printed in ABS (I hate the warping issues and my heated bed never reaches 100°C) I have heard that ABS prints often suffer from shrinkage.

I had the same problem, but I have solved with a silicone hot plate (220V) and a Solid State Relay
Now I have no problems.
I print on a plain sheet of glass with ABS juice.

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