Orca 0.3 linear bearing lm8uu/RJMP x-carriage
Description
Allows for extruder corner to be mounted next to idler to make extruder more rigid.
Includes T5 belt clamp version, and GT2 belt clamp version.
Working fine. :)
Clamp is MUCH stronger.
Now uses three bearings.
Now two pieces, and allows new extruder-driven part to be bolted down.
Includes two stl files for each belt type, one complete, the other is just the clamp part on its own.
RJMP version for 25x16mm bearings.
Instructions
New version, place bearings inside parts, insert nylocks into rear part, then bolt to the aluminium plate.
Bolt belt clamp to rear part.
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All my work! NO! :)
Sounds good, was the major change only having three bearings? or was there a change to the dimensions?
Haha :)
I didn't change any of the dimensions of the lm8uu holders. The version 5 of the other design was used. Still the LM8UU holders are a bit too large now in the new design, so that needs to be changed.
The 3 bearings is a good improvement to make the carriage less tight on the smoothed rods. However
the biggest improvement was giving the bearing holders more space. So cut out all that plastic around it. The plastic now has the ability to resize a bit around the bearings. In the old design the bearings were so tight that there was no room for small (print) derivations in size.
Hay! The solution for the belt-clamp looks good :-D. I was however also working on a derivative from x-carriage because of the line up problem with the bearings. I recommend using the new design because it fits much better then the original one. Sorry about that.
License
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I printed the part in 'x-carriage.STL'. The bearings fit nicely and the holes have the correct size for the screws.
Is my assumption correct that I need to insert a spacer between the parts I printed and the aluminium plate that carries the hotend? Otherwise the plate interferes with the threaded rod at the side where the belt is clamped to the bearing holder.
have updated part to improve how the nut traps print.. hopefully. :)
Hey, that's the latest version of the part, and here's what I did, you may choose to do things differently;
The threaded rod does interfere with the movement, so I took that out, so long as you have collars or clamps on the smooth bar, it doesn't affect the rigidity of the frame. Also makes it easier to get to the belt.
Also you then have to use http://www.thingiverse.com/thi... with only the extr
a extruder corner (there's now not enough space between the plate and the smooth bar for the other two corner's bolts.) with the new 040 driven part (bolted to the plate).
In the rear bearing part, there are four nut traps; put bolts through the plate, then nylocs, then the part, then extra nylocs.
This allows you to tighten the rear bolts without having to remove the motor.