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Prusa I3 Direct drive extruder mount

by Dcdesigns, published

Prusa I3 Direct drive extruder mount by Dcdesigns Sep 25, 2017


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While building a prusa i3 mk2 variant for a friend I found myself needing to mount a direct drive extruder to the stock i3 x carriage. I started with Ghosty's part as I like how it moves the fan to better cool the heat break. I wanted to give the option to easily upgrade to a more standard i3 extruder later.
With this style of mount it clamps to the extruder stepper so that you don't have to change out as many screws or make other mods to the extruder. I still need to make a spacer as to allow for clearance of the z lead screws. I will also be adding a top the has mounting for a servo and the arm for the switch style probe.

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I added the top mount with servo attachment and servo probe arm.

After tests with a few different steppers I opened the distance of the 2 towers 1.2mm

I added through holes for long screws to go the full length and strengthen the unit.