Worn extruder hobbed pulley  

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Omikron
(@omikron)
Estimable Member

Can't disagree on that. Which is why I use only my cheapest Torx bits for that sort of workaround, only when my hex bits "skip" despite being the right size. 😕

The screwdriver is the easy thing to replace. The stripped out set screw on the other hand..

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Posted : 15/11/2016 7:35 pm
JohnnyricoMC
(@johnnyricomc)
Estimable Member

Yikes necropost! But for a good cause.

I came acrossthese things on Aliexpress1-2 months ago and ordered a few out of curiosity. They arrived today and at first glance they appear the same size. I will have to do a side-by-side comparison and some measurements with a sliderule when I get home.

On the off chance they're the same size, they'd be inexpensive spares. If not, one can always adjust the extrusion multiplier.

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Posted : 24/01/2017 2:02 pm
JohnnyricoMC
(@johnnyricomc)
Estimable Member

Unfortunately, they're not the same dimensions: in the original pulley I measure a diameter of ~6.40mm at the teeth. On the ones I found, the diameter at the teeth is ~7.25mm. So they're not quite a drop-in replacement, but would require some adjustments.

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Posted : 24/01/2017 9:09 pm
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