Robo3d Z axis top stabilizers

by VincentJGeisler, published

Robo3d Z axis top stabilizers by VincentJGeisler Aug 2, 2013


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This part improves the stability of the Z rods on the Robo3d printer.
It attaches to the top of the rod, and the inside of the case to improve printing quality as well as provide additional support for the bottom rod stabilizers.


print, attach to top of right guide rod. Drill holes through case and bracket foot for 4-40 screws. enjoy.

todo: build one for left side.

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You might find the design doesn't fit very well...the rods do not fit the holes nicely...

If this is the case, consider using a blow dryer to gently warm the plastic and jam it onto the end of the rod...it's a bit hacky...but it works.

does this work with the Robo 3D R1 Plus?

These brackets made an amazing difference in print quality for my kickstarter Robo3d (I believe they call this a BETA). They created a Night and day difference. I had the original soft metal 5/16 threaded rods which were slightly bent. Using these was actually better than switching to the more expensive threaded rods just released as a kit for the printer. Thank you very much for the work creating these.

turns out when Robo redesigned this they changed the distance so with out the cad file I cant use these because they are TO SHORT just a warning for anyone who ordered their new model R1 in the last 2 months or further in the future

wow sorry to hear that.. Its been a while but if i can find the cad file i'll post it.
What i really find interesting is that robo redesigned and STILL kept the flimsy mount design.

Well DAMN!!! I printed these and had been using them for a few weeks... then last night I had a BIG print which took 20+ hours and it died in the last 15 layers! I suppose I should have realized, or tested this, but as it turns out with adding these stabilizer bars it limits the Z height we can print at. My model was like 172mm tall. Well within the 200mm height... but as it turns out, with this on there, I'm limited at ~165mm. That killed almost .75kg of filament and a full DAY of printing... ARGHHHHH! :( :( :(

Apr 21, 2014 - Modified Aug 7, 2015

When I printed them the hole was covered over on the small one. So I downloaded it again and printed and it was still covered over. These helped immensely. The two biggest improvements for my printer have been these Z axis stabalizers and printing feet to get the printer higher off the table so it could cool the processor. The processor would overheat and then start printing in a different area.

-edit the hole being filled in turned out to be a setting in the software- Alot was learned in the year since i wrote this. I used the 3m - 20 ibs double stick tape.

awesome thanks!!
are you still running the 5/16 z rods? switching to 8mmx1 is an easy mod and has a major improvement in print quality.because we generally print in metric, the 5/16 z rods creates division errors and those errors build up to cause z ribbing effect.

Worked great thanks

Will these print without supports?

you're Welcome. It was one of the very first things i had to change about the design.

The concept is great, the result is awful. Its not that my printer cant print it, its just the design makes orientation to face upward rather then to stay on the side.
I suggest to lay this part flat on the ground and made base taller then the rest. That way circle will be much more accurate diameter and higher base will allow to add bolt and nut for removal rather then sticking it to the wall with glue or double side stick tape.

I have made these and they print very well. Haven't installed them yet but everything looks good. Thanks