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Beveled Herringbone Extruder Drive Gear

by PSUReprap, published

Beveled Herringbone Extruder Drive Gear by PSUReprap Dec 13, 2012

Thing Info

4646Views 680Downloads Found in 3D Printer Parts
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Summary

This is a herringbone drive gear that has been modified to have a beveled edge. This bevel allows for better prints of the drive gear because its first layer is circular creating an accurate print from the start. This circle rids the gear design of the original 'star' shape in the first layer, making the part more accurate and repeatable.

Instructions

Print with full infill for best performance and the least chance of the part breaking during use.

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Thing Info

4646Views 680Downloads Found in 3D Printer Parts
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Can you please share the SolidWorks file. The STL has errors and I'm not able to get them fixed. Thanks

Is there an openscad souce or something that can be used to create larger gears? I have two on my extruder I would like to redo.

an intersection of the bevel gear with 
a cone is all you need to replicate in openscad. Add this to the bevel gear code as I'm too tired to be bothered making a module and there's probably one somewhere already.

(replace names of things with correct variable where needed)

x=radius of gear + Height of gear - depth of tooth

intersection(){
cylinder(r1=x, r2=0, h=x);

bevel gear code here
}

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