Printable Linear Bearing and Rail System - Draft 1
by Corwin, published
Description
I don't have a 3D printer, so I can't test it myself. If you try it, let me know! If you can't make it work, let me know! I'd like to make this work, so if you'd like to help me, help me help you help me help us all by telling me about it here or on the reprap forums. The non-printable part is the recirculating 6mm balls. Note on where to get them below.
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view allYou need to reopen your files in solidworks and set the ratio to 1:1 and the units to millimeters then re export to STL. Also check the settigns when exporting you may have to set the ratio and units in there too.
And last but not least, nice work!
Hey, sorry for the confusion the version of the rail I uploaded on here and the one in that image are a little different. the holes running down the center are bolt holes, not bearing holes. The bearing balls are supposed to go in the "race track" that is formed by the parts of the carriage so that they will cycle inside the carriage. I've added a version of the rails with bolt holes to the files. When you slide the carriage onto the rail, the balls should go into the grooves in the sides of the top of the rail.
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Instructions
Assemble bottom-to-top in the most obvious possible manner.
Fill with 6mm Airsoft BBs as ball bearings. They're pretty cheap, which is why I designed this to use 6mm balls.
Rails are intended to be printed so the triangular indent is down and the traiangular beam is up. There is clearance designed into it so that the overhanging face doesn't need to be flat for two of them to fit together.
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nice idea - I'm thinking of printing this, but I don't see the bearing holes (should be in the rail, right?) when I open rail.stl in meshlab. I haven't tried it in AOI or anything else.
Hey, sorry for the confusion the version of the rail I uploaded on here and the one in that image are a little different. the holes running down the center are bolt holes, not bearing holes. The bearing balls are supposed to go in the "race track" that is formed by the parts of the carriage so that they will cycle inside the carriage. I've added a version of the rails with bolt holes to the files. When you slide the carriage onto the rail, the balls should go into the grooves in the sides of the top of the rail.
You can find 6mm plastic bearing balls mislabeled as Airsoft BBs in your local sporting goods or superstore, usually priced around 1000 for
&
lt;$10. Online they're even cheaper.
I noticed, I'm not sure what I should do about it. I guess I could copy it out and put it into a comment.
This line of reasoning has real potential, I'd like to see it printed and improved!

You need to reopen your files in solidworks and set the ratio to 1:1 and the units to millimeters then re export to STL. Also check the settigns when exporting you may have to set the ratio and units in there too.
And last but not least, nice work!