Spur gears for Printrbot Wood Extruder

by olawlor, published

Spur gears for Printrbot Wood Extruder by olawlor Nov 16, 2012
5 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps



Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

10228Views 1856Downloads Found in 3D Printer Parts


This is a single-plate little and big gear extruder gear replacement set for the Printrbot Wood Extruder. It's working well on my PB Plus.


I printed this with 0 extra shells, 100% infill, and it seems quite sturdy and reliable on my Printrbot Plus--in fact, it's extruding right now!

It's a derivative of:
I deepened the hex head hole, to put the hobbed bolt teeth at the right depth. There's a little spare depth for a thin washer between the gear and extruder, so if the gear is a little warped, it will still turn cleanly.
If your extruder is a little goopy, like mine, and it prints interior holes undersized, you may need to drill out the center hole to 5/16 inch, and/or chisel some clearance around the hex head. A sharp 1/4 inch wood chisel works well for this.

More from 3D Printer Parts

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

Treatstock is an online platform that offers decentralized manufacturing services such as 3D printing and CNC machining for business-to-business and business-to-consumer sales all over the world. W...

App Info Launch App

3D print your favourite design with NinjaPrototype, a professional 3D manufacture with consistent quality and speed.

App Info Launch App

What are you slicing with? I'm having problems (different, but equally annoying) with both Slicer 096 and 072b.

With 096, the tip of every tooth has a tiny < 1mm length of extrusion that ends up lifting my part off the hot bed.

With 072b, I can't get it to fill the hex area that holds the hobbed bolt head, which would probably end up being flexible and weak as its only 1 perimeter thick.

Ive also had bad luck slicing anything with Skeinforge and Kisslicer. =(

I cheated and used Skeinforge from ReplicatorG's simpler interface.  That is one crazy complex program.

But I just checked and these gears did print fine sliced from Slic3r 0.9.6 to my Printrbot.  Just set perimeters==1, and disable the "Generate extra perimeters" checkbox to keep the weird gaps from the tip of each tooth.

I do keep my heated build platform (w/ Kapton top) to a blazing 110C, but it makes ABS stick like crazy, so I haven't had any problems with lifting or even curling.

 So I just spent essentially the entire day trying to figure out skeinforge. I think I got it. Posting pics of my gears under "made one!"