I use it with linear bearing: http://www.thingiverse.com/make:202307
That looks great! How well do they work? I don't know a good metric, but I know that after I cut that chunk out of my X bearing block, I was able to push the x axis, and it traveled all the way to the end. It would only go a few cm when it was rubbing.
Also, think about removing that tension spring on the belt. I read somewhere (probably from jetguy's printerbrain thing) that you want that cord to be solid, not flexible, hence the reason for the kevlar belt. Remove the spring, and tighten it up.
Sorry for my English. I do not understand you're talking about the linear bearing or block.
I chose this block (http://www.thingiverse.com/thing:1172838), but not the other (http://www.thingiverse.com/thing:1162366). In the first block can set longer bearing.
I was interested in trying printed bearings. I first printed the standard bearing LM8UU_0.5_Nozzle_V3.stl of http://www.thingiverse.com/thing:24990. The length of the bearing 24mm. But you can make a longer bearing! It used to be three blocks (two upper and one lower). I decided to put only two blocks, but compensate for this with longer linear bearings.
My first bearing (z = 24mm) dangled on the rail, and it was necessary to slightly reduce its size (x / y). I made three short of the bearing for the test (X/Y/Z):
100% - 100% - 10mm it dangles
99% - 99% - 10mm is the norm
98% - 98% - 10mm is tight
After this test, I made two more linear bearing (X/Y/Z) - 99% - 99% - 50mm.
The bearing fits inside block very easy and loose. I used pieces of paper for a tight fit.
Since after installation the bearing is reduced. I used a hairpin M8 to increase the size of the inner bearing. Several times moved bearing threaded M8, rotating bearing. So I made the necessary bearing size.
If you move the carriage of the belt is running easily. If the moving carriage for the engine (away from the bearing) is running jamming.
I tested this design very little time, now I do not see any problems. I used motor oil for lubricating.
Maybe I wrote something incomprehensible. Please, you can ask me.
What size did you make those bearings to fit? A little confused!
(X/Y/Z) - 99% (from original size) - 99% (from original size) - 50mm.
It need manual fitting, because imprecision is more.
Manual fitting as in a press? And I resized it to 50mm but 99% x and 99% z it still seem to be way to big to fit the block!
Do you still have the STL of the bearings you used??
I used "Oversize bearing hole" from http://www.thingiverse.com/thing:1172838
Gap between bearing and block is big. For amends I use piece of office paper.
Didnt mean the block, I mean the bearing but ill figure it out! Its just after resizing it still looks way to big to fit.....Thats what she said too!
Give me screen
What do you mean?
Make a photo of problem.
ID is either way to big or way to small...
Thank you for the explanation.