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marlin problem

Posted: Fri Jul 15, 2016 12:36 am
by spa_sergio
I have a problem with my acrylic Prusa pro b
I've printed several pieces . and when I measure the size of the pieces do not match the size they should have .
I proceeded to calibrate and change the values ​​in the marlin, and continues to do the same. ( repeatedly)
change the values ​​from the screen of the Prussian and no improvement .
the real problem comes with the motor steps that I will not come casket up.
that is to say. I motioned 80.11 for example, and the printer does not change , are always to 78.74 . do so with the marlin or directly from the printer screen .
What could be the problem? a greeting

Re: marlin problem

Posted: Fri Jul 15, 2016 9:53 am
by William
spa_sergio wrote:I have a problem with my acrylic Prusa pro b
I've printed several pieces . and when I measure the size of the pieces do not match the size they should have .
I proceeded to calibrate and change the values ​​in the marlin, and continues to do the same. ( repeatedly)
change the values ​​from the screen of the Prussian and no improvement .
the real problem comes with the motor steps that I will not come casket up.
that is to say. I motioned 80.11 for example, and the printer does not change , are always to 78.74 . do so with the marlin or directly from the printer screen .
What could be the problem? a greeting
It's a bit weird...Take the liberty to ask,did you upload the firmware sucessfully when changing in Marlin and store the memory in LCD when change it in the LCD controller?

Re: marlin problem

Posted: Fri Jul 15, 2016 10:41 pm
by spa_sergio
testing and from the lcd if you let me change the steps . but not from marlin .
I can change the firmware and even change the directions of the engines. but when I do it from marlin (only steps engines ) does not change .
firmware uploads bien.he I always tried different firmware and also uploads . but the steps will never change

Re: marlin problem

Posted: Sat Jul 16, 2016 2:33 pm
by William
spa_sergio wrote:testing and from the lcd if you let me change the steps . but not from marlin .
I can change the firmware and even change the directions of the engines. but when I do it from marlin (only steps engines ) does not change .
firmware uploads bien.he I always tried different firmware and also uploads . but the steps will never change
The step/mm of all the motors can't be changed???And how big is the diffrence in the object you printed actually with the one you expected before printing?

Re: marlin problem

Posted: Tue Jul 19, 2016 4:04 pm
by spa_sergio
Over the engines only let me switch from the LCD . Marlin does not change me . the difference in the x-axis is 0.6mm