Geeetech Aluminum Prusa I3 Anti-Wobble Bracket

by JimmyShawsTidbits, published

Geeetech Aluminum Prusa I3 Anti-Wobble Bracket by JimmyShawsTidbits Mar 18, 2016
24 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps



Apps Used

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

16077Views 2765Downloads Found in 3D Printing


This is a set Anti-Wobble Brackets. Their purpose is to isolate the wobble of the threaded Z Axis Rods to improve the print quality. They are designed to replace the factory nuts on the Geeetech Aluminum Prusa I3 that came with stamped steel Z Brackets.

2 standard M8 Nuts available at most Hardware Stores are required. It should be sized correctly, but if the brackets are tight on the smooth Z Rods, some shaving or sanding will be required to allow smooth movement so they will not jam causing lost steps.

Supports are recommended for the area where the nut fits.

Please check out my video: https://youtu.be/mYswkbC_AX0

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/lhubjMRleuR

More from 3D Printing

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 clients all over the world. We offer free and instant access to comparati...

App Info Launch App

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

App Info Launch App

This looks like a great mod. I'm fixing to print these out and give them a try. A tip i can share for fixing the captive nut wont fit into the printed piece is to use a cigarette lighter and heat the metal nut to "finger burning temp" and press it into the plastic... it will melt the plastic instead of cracking it and the nut will fit tight and you won't need to print another.

Wish I tried this sooner, now I do not need a new printer yet. So much better. Not perfect, but certainly a improvement.

Nice work.

Done. This small thing helped a lot. Thank you!

Really want to try this but is there a way I can send you a picture of my setup so you can tell me if you think it will work

Works like a charm, thanks you very much !!

Now that this issue is fixed, i'm working on the cooling of the pla while it prints, any suggestions ?

Did you find something?
I'm interested too.

Your anti-wobble are damn good !!!!!

Many many thanks!

Aim to print these soon. Just a hint that works for me. When inserting any metal fittings, I heat them up first with my heat gun. They usually slide in easily then :-)

That is a great idea!

Out of shear curiosity, why are your threaded rods all grey in the first image?
They almost look painted.
I take it that is some sort of grey grease?

I use white lithium grease. After a while it turns grey for some reason.

printed these up with PLA at 100% infill.
NO MORE Z WOBBLE AT ALL! WOW! great youtube channel too buddy

I thought it might be. It's turning grey from the fine metal on metal fillings.

Next time you do maintenance on your printer, or the Z axis where you have it apart. If you have access to a buffing wheel, polish the threaded rod to a high luster. Don't get it too hot doing so or spend too much time on one spot. Just an overall quick high polish will do the trick. It'll make it smoother and you'll see it doesn't turn grey as quick. (Make sure you clean off any rouge after polishing). You might see the fit to the nut ever so slightly looser, but since the nut rides on top of the threads it shouldn't effect printing, it'll just make it that much more smooth as the carrier moves along the Z axis.

Anyway, I printed a set out. I added the nut(s) in during print (see image) that way I didn't have to waste filament on supports. They came nice. Less the Z wobble of course.

I'm going to smooth the contact surface and install them today. I might add a thin fender washer between the carrier (3D printed) and the contact point on the Anti wobble guides just to give it a nice surface to slide on.

Hoping for the best.
Thanks for sharing your model/design.

  • chase -

If anyone buys a prusa i3 this is the first mod that HAS to be done. Omg my prints went from good to WOOOW!!!

are the nuts you use METRIC?

mucho garcias dude! im in europe and aint nothing else here to use! i guess made in china has a use after all

No problems im sure there is a close imperial equivalent if you cant get hold of a metric M8

metric is all we have in europe buddy, i be making these this week

Works perfectly with my Geeetech Acrylic Prusia i3. I managed to get a lot of the wobble out but this very simple design removed all the wobble I had left. Perfectly smooth prints now. Printed it at 0.2mm layer with 11% infill. Did some extra grinding on it (since before I had them there was still wobble on the print)

Thanx for sharing, I was just about to ask that question.

Edit: You do mean with the printed carriers on the Acrylic, not with the Metal Upgrade Carriers on the Acrylic...right?

Just a question. What should be the fill %? I'm so going to print these tomorrow!

The last set I did at 90%. I prefer them to be fairly solid to compensate for any ware.

This bracket is amazing! Forget using Lead Screws on the Geeetech Aluminum Prusa i3, it's a pain in the but and causes lots of problems. Keep the threaded rods and use these brackets. They are great.

Definitely giving these a try in a few days! I have a bit of Z wobble that is driving me nuts. These look like they will do the trick perfectly. Thanks for the work.

Please let me know how it works.

i love your YouTube channel. i have an acrylic is and will print his up this weekend and give it a go buddy!
keep up keeping on!

Fixed my z-banding issue it looks like :).

Nice video especially the last part. That was the clincher for me where the reason for this part was shown. You should post a couple of before/after images with this post, you could "grab" from your video.

Printed out the THINGI - from my remix [ http://www.thingiverse.com/thing:1431036 ] The results are fantastic. All traces of Z banding have gone. Thanks for this.

Geeetech Al Anti Z Wobble Remix

Thank you! I'm glad it helped.