1 Topic by wilheldp

  • wilheldp
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Topic: Y-Axis going haywire

I've been trying to print Emmet's 6 planet gear bearing, and the y-axis goes nuts after about 10 layers.  The print is sticking to the bed (glass/hairspray) just fine, and the first 10 layers appear to be perfect, then the print shifts back and forth along the y-axis.  It has done it twice now, and the second time, it was fixed using netfabb.  See pictures below of the problem print.

https://lh6.googleusercontent.com/-vx9PjQuA2Gs/UYBm6B9N6dI/AAAAAAAAGFY/picUglnTLY4/s640/image%25281%2529.jpeg

https://lh3.googleusercontent.com/-Ib0pXrjLZs8/UYBm52dnh8I/AAAAAAAAGFU/WIkCirHLiWA/s640/image%25282%2529.jpeg

https://lh6.googleusercontent.com/-rxgCgoWMmJk/UYBm6GEZy4I/AAAAAAAAGFc/VQzpivZ98Zw/s640/image.jpeg

2 Reply by wilheldp

  • wilheldp
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Re: Y-Axis going haywire

It was the electronics overheating.  Thanks to nlancaster in the IRC channel for the suggestion.

3 Reply by Staffordknot

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Re: Y-Axis going haywire

Hi, would you mind explaining which part overheated and why? and how you solved it? for the benefit of the likes of me yikes)

4 Reply by nlancaster

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Re: Y-Axis going haywire

my Guess would be his y-axis stepper driver was overheating if putting a fan on it solved the issue.  When the stepper driver over heats it starts causing step misses.  making your machine drift around.

5 Reply by wilheldp

  • wilheldp
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Re: Y-Axis going haywire

Staffordknot wrote:

Hi, would you mind explaining which part overheated and why? and how you solved it? for the benefit of the likes of me yikes)

I just pointed a 40mm fan (recently removed from my x-axis motor) at the electronics board on the rear of the printer.  I have since printed this (http://www.thingiverse.com/thing:69230) and mounted two 40mm fans directly to the electronics cover.

nlancaster...I don't know if Thingiverse screwed something up or what, but that electronics cover imports into Repetier vertically (i.e., the fan holes are upright instead of flat on the bed).  I had to download netfabb free to rotate it so it would print correctly.

6 Reply by nlancaster (edited by nlancaster 2013-05-02 16:38:27)

  • nlancaster
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Re: Y-Axis going haywire

you can rotate the part in repetier to get it to lay flat.  Over on the right side of hte object placement tab in repetier you can rotate parts.