Hello, I have this problem when I start printing ABS.
Say I have a circle shape on a CAD files, I end up getting some elliptic shape. Or if I want to print a prism, the lines aren't that straight. The bed level calibration were done carefully though and I had to adjust the horizontal radius, so I believe level calibration isnt the issue.
Could this be related to inappropriate belt tension or too much resistance on the axis?
Deform shape
Re: Deform shape
Check for seized or tight u-joints.
Orion to Cartesian http://forum.seemecnc.com/viewtopic.php?f=59&t=7808" onclick="window.open(this.href);return false;
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Re: Deform shape
^ this. I'd almost guarantee it's a stiff u joint.
I loved my Rostock so much I now sell them in Oz
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Re: Deform shape
Hi again,
are you refering the u joints from the effector or the ones that are screwed to the cheapskate carriage?
are you refering the u joints from the effector or the ones that are screwed to the cheapskate carriage?
- nitewatchman
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Re: Deform shape
Could be either one and at either the arm to aluminum block or the block to the shaft.
nitewatchman
nitewatchman
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Re: Deform shape
Hi, I confirm that the u joints get moved easily. The screw that hold the carriage are tight though, what did you guys do in order to fix it?
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Re: Deform shape
Hi, I just wanted to give an update. I somehow managed to solve the problem. The carriage has too much friction on the T extruded, and as a result there was 2 carriage that could move freely out of 3.
So I adjusted the screw and now the 3 carriages could move freely without much friction.
It is now printed a circle fine.
So I adjusted the screw and now the 3 carriages could move freely without much friction.
It is now printed a circle fine.