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Every moderate length print failing

Posted by MichaelBrock 
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JamesK
Re: Every moderate length print failing
October 25, 2015 08:07AM
Congratulations! Glad you got it going. SmartRap core uses a cantilevered bed doesn't it? The twisting load on the LM8UUs for that sort of design is always likely to create more friction than a non-cantilevered layout.
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MichaelBrock
Re: Every moderate length print failing
October 25, 2015 09:20AM
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JamesK
Congratulations! Glad you got it going. SmartRap core uses a cantilevered bed doesn't it? The twisting load on the LM8UUs for that sort of design is always likely to create more friction than a non-cantilevered layout.

It does use a cantilevered bed. The new z-axis system I was printing the parts for has support on opposite ends of the bed, so should be a big improvement.
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papakel
Re: Every moderate length print failing
February 03, 2016 04:51AM
I had exactly the same problem and tried all the same things you suggested without success, then I stumbled on a post suggesting driver overheating, which I originally dismissed, as I didnt think that the heatsink felt that hot, but as everything else had failed to solve the problem I fitted a 3inch fan blowing directly on to the face of the sanguinololu board and BINGO problem solved.
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