Loading

16mm Sleeve Carriage for Rostock Printer and Igus Linear Bearings

by jpickens, published

16mm Sleeve Carriage for Rostock Printer and Igus Linear Bearings by jpickens Nov 30, 2012

Description

Metzench designed an open 16mm saddle carriage for the Igus RJM-01-08 plastic linear bearing. The Igus bearings require a 16mm bushing to "squeeze" the ribbed bearing to 8mm tolerance. I modified the SCAD from Johann's original Rostock carriage to have a 16mm enclosed sleeve for holding the bearing.

I should add that I am currently building a Johann's Rostock with 8mm rods, and hope to use these simple and cheap bearings instead of the loud and expensive metal ones. We'll see how it goes.

Recent Comments

view all

These are not printed bearings, they are a special plastic material with integrated lubricants made by IGUS. My design was to modify the carriages to hold the IGUS bearings. I've got many hours on my bearings, and they are holding up well. I routinely put dry teflon lubricant on the rods just in case. Spray the stuff on and wipe off with a lint free cloth.

my issue with using printed bearings is that when I apply any pressure on it with zip ties they no longer move freely and now I have jam!

So.. how long do the igus bearings last?

More from 3D Printer Parts

view more

Makes

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

Instructions

Print with 1 shell and at least 50% infill.
My ToM leaves a slightly undersized 16mm nominal sleeve.
Used an adjustable reamer from Harbor Freight to true up the sleeves.
Set the reamer to 15.8mm, and this gave a good squeeze on the Igus bearing to ride the 8mm rod. Maybe even too tight when I mocked it up. But better to start undersize and work up.

Please let me know what you think.

Comments

You must be logged in to post a comment.

secretgspot on Apr 12, 2014 said:

my issue with using printed bearings is that when I apply any pressure on it with zip ties they no longer move freely and now I have jam!

jpickens on Apr 15, 2014 said:

These are not printed bearings, they are a special plastic material with integrated lubricants made by IGUS. My design was to modify the carriages to hold the IGUS bearings. I've got many hours on my bearings, and they are holding up well. I routinely put dry teflon lubricant on the rods just in case. Spray the stuff on and wipe off with a lint free cloth.

HarshReality on Aug 7, 2013 said:

So.. how long do the igus bearings last?

misan on Jan 27, 2013 said:

Just an idea for the couplings: http://www.igus.es/wpck/defaul...

sousoux on Jan 7, 2013 said:

Have you started using this yet? If yes how are you finding it? I have some of the cheap Chinese bearings and they are already worn enough that they wobble diagonally. I was seriously looking at the Igus bearings. I was actually looking at boxing 4 on each tower to make the carriages more stable.

jpickens on Jan 7, 2013 said:

Doing dry runs just yesterday. Got the hot end wired up last night.

Right now I'm waiting for my heated bed and trying to figure out settings for the PG35L geared stepper I'm using.

Overall, I'd say the Igus bearings work very nicely, but I've only done about 20 minutes of dry prints with the entire 200g of Ultibots extruder/PG35L setup installed.

Running your Repetier firmware with Repetier Host. Thanks for your work on this.

video of a first movement with the printhead installed:

http://youtu.be/xjHBDExegqM

nophead on Dec 30, 2012 said:

"expensive metal ones"?

LM8UU are much cheaper than RJM-01-08 in my experience.

jpickens on Dec 30, 2012 said:

I guess I've been scared away from the cheap LM8UU's I've read about on the forums. The "good" ones go for a bit more than the $4.85 (US Dollars) I paid for the Igus bearings.

http://youtu.be/VGF70mPzEqY

Top