Linear Bearings, IGUS Style !!!
by PropsFactory, published
These Linear bearings are good replacement parts for those who get bored with "NOISY" LMxUU ... I Know somehow some "Cheap Bearings" can do this ...
But !!! Instead of changing all the carriage ... switching to PLA "old style bearings", I designed "ready to print" Bearings, There is Three equivalents, LM6UU, LM8UU & LM10UU !.
They are all the same size as original bearings :)
Tooth thickness is made to print well on 0.5mm nozzle, altought a LM10UU 0.35mm will print really nice :)
More tooth is better :)
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Printed these in ABS:
They are now installed in my solidoodle Y axis, working great.
I'm very happy with these, and will be replacing every linear bearing in the printer with them.
They were longer than original sleeve bearings, so I cut these in half after printing to match size.
Tips the get the best from these:
-end that is started on the build platform:
you may need to cut some of this off as it was a bit squished up and caused extra friction.
-When you first install them there will most likely be WAY too much resistance for the motor to move properly, if at all. You'll want to spray the rods with silicon lubricant. If the printer still does not slide properly, slowly add a few drops of acetone to rods on both sides of the bearings, then slide the axis a while. It will eventually free up, you may need to drip more acetone onto the rods, and slide them more to get them right.The acetone will very slightly melt the inside of the bearings better to the shape of the rod.
After the acetone treatment, give them another good dose of silicon lubricant, followed by an hour print to wear them in, I just did a dry run. The extra lubricant, followed by a dry run for a while will make sure the acetone is all gone.
But thanks! These bearings work great! sooo much better than the sleeve bearings! and they cost so little.
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First thing ... simple insert the printed bearings in your rods, and "play with them" rolling/sliding, to ensure they slide well, you can also lubricant them !! the lubricant will stay between tooths !!!
Simply print slow with 0 infill and 3 perimeters at least.
Hum and ... that's all I think :)
Tested them on my X & Y at 120mm/s infill and 200mm/s travel they do not fail :)
Added: LM12UU Version
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