Ultimaker feeder upgrade

by am001, published

Ultimaker feeder upgrade by am001 Jun 22, 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

15136Views 7340Downloads Found in 3D Printer Extruders


A strengthened version of Antiklesys' feeder improvement. A must for retraction.


Antiklesys' modifications is a great idea, but there were some concerns in the comments about its strength. There was very little could be done within the existing 4mm wide gap the part sits in, so to make it stronger you also have to change the side supports, part 10A and 10C.
This is a fully printable upgrade of all 3 parts of the assembly, whilst keeping faithful to the Ultimaker original, using the outer shape taken from the lasercut drawings published.
You will need a 6mm ID, 10mm OD, 3mm wide bearing, this cost me £1.99 on eBay.

This thing really works. It reduced the friction considerably, meaning less pressure needed, less teethmarking of the filament, less jamming of the deformed filament in the bowden, less grinding the filament (none in fact since I fitted it) and much better, quieter retraction performance.

Modelled in Siemens NX8, printed 0.1 slice, 100% fill using Cura. No support needed.

More from 3D Printer Extruders

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

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

Prnted well enough for me. The outer wall of the roller is only 0.5 mm thich, so it is very easy to crush the bearing by overtightening the screw. It is a delicate balance. Also, the plastic center for the bearing can break.

Under "MADE ONE" there is a photo of a broken bearing (obvious) and the broken plastic center (if you look carefully)

Nice upgrade! Works well so far. At first the closing mechanism (the black handle) did slide open on its own. I created more friction with rough sandpaper on both sides, now it stays put.

The center part has a two-layer bridge that didn't print well (see image) but it doesn't matter, because the screws hold it in place.

After some time, the black handle still keeps opening... Luckily I can just leave it in vertical (open) position from the beginning, then it works.

Unrelated to that, I wish there was at least a little bit of spring force. I'm adjusting the screw a bit too often for my taste. The obvious solution is http://www.thingiverse.com/thing:26094 (if I can be bothered to find the parts). But maybe just a little bit of spring force could be added to this design, too? Maybe place the nut a bit further back and print a simple spring at the tip of the screw bolt... or leave space to stuff something compressible in...

Ultimaker Extruder Drive Upgrade
by Bertho

Hi Maxy,

Yes I get this opening thing sometimes aswell, which is odd as I took the data direct from the lasercut drawings, so it ought to be the right shape.

The problem I just had yesterday is my bearing disintegrated! to be fair it has worked perfectly for months now doing many thousands of retractions and probably
gt;5kg of filament. I guess it was a cheap bearing from eBay :(

I'll order a replacement from RS and see if that lasts better. Maybe it is just too much for a small bearing and I need to find a way of getting a bigger one in there. There isn't a bigger diameter on I have found though that will fit in the 4mm gap of the extruder.

I'll have a think about a spring too....

So far totally happy, it seems a superb upgrade compared to the original, which is really too crude and stops working too often. Agree that a mechanism with a regulator that presses on a springmight bea further improvement.

Hi Am001 I've been trying to model my own version, but your's seem to be stronger in the bearing section. The problem is that I don't have the same bearing there is a way that you can upload a .stp to change that part. At the moment I only have SolidWorks because of work. I hope you can help me :D


STEP file added. All 3 parts are in the same file.


Thank you very much am001 :)