Hi all,
First all Information of my build:
-MPCNC with Mini RAMBo 1.3A
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2004A LCD Screen
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12V 5A Power Adapter (could this be the problem?)
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preconfiguered Marlin Build for MPCNC with mini Rambo (It says its for mini Rambo 1.4 at the website is this a problem?)
So i just finished building up my MPCNC and after sorting out all kinds of problems it now moves. When it stops moving, the steppers start vibrating with a loud noise. when i move it arround it does it pretty accurate(it moves 1cm when i tell it to). But just sometimes it seems to be a bit off. I then tried the crown test, but this does not work well at all. it seems like it does way too big steps and diagonals look like stairs. Strangly the diagonal to the starting point seems right, while the rest of diagonals are stairs. I doublechecked all wiring.
My stepping options are following: #define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 3200, 100 }
for a 1.8 degree motor, 20 tooth pulley, belt pitch is 2.5 mm and mini Rambo has 16 microsteps which would bring me:
#define DEFAULT_AXIS_STEPS_PER_UNIT { 64, 64, 3200, 100 } but thats way off from right measurement.
Now i dont know what to do. An idea was that i could have wrong PWM but i dont find where to set it up in the preconfiguered build.
My display isnt working as well while it glows. But i didnt thaught about this problem yet.
First, thanks Bryan, you are such a wonderful person for helping everyone out here I really love your work.
Thanks in advance!
20190720_233304_x264.mp4 (2.05 MB)