EZStruder Knob

by h3ss, published

EZStruder Knob by h3ss Jun 17, 2013
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EZStruder Knob by h3ss is licensed under the Creative Commons - Attribution license.

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This is a knob designed to be used with the EZStruder from SeeMeCNC.

It allows you to easily see how the extruder motor is moving, and can be used to manually feed or retract filament.

Please be sure your steppers are turned off before manually turning the knob, or you can damage your machine.

Video: http://youtu.be/Kuf5HGwczbo

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Like the other comments, after printing, I noticed that this did not fit my EZStruder AT ALL. So, I scaled it down.....multiple times, until I found the magic number. I scaled it down by -14% so that it is 86% of the original. (Z height should be 17.20mm). I also melted an M3 nut into the side and drilled the center out to create a set screw that could clamp on the flat of the motor shaft. If you want a tighter fit that may not need a setscrew, try scaling down another 1-2%. I will upload pics of what I did, so that others may be able to use this. Thank you for the design!

Yeah, I was surprised this didn't fit the stepper at all.. not sure what the point is.. There's not even a hole for a set screw.

Hey! Looks great, but how do I attach it to the stepper - it seems like the hole is much wider than the shaft of the motor?!?!?

Cool stuff, like the design. Put a 3mm bolt in mine as a set screw. :)

Thanks, this was more helpful than I thought it would be. Before I installed it I could never tell how fast my retracts actually were. Now it's easy to monitor, plus it looks cool while the extruder is working!