Square Bushing (Parametric)

In stock · Made-to-order resin · Ships from Auckland · Free shipping over $75

Material

PLA (filament)

Colour

Grey

Weight

~40 g

Print time

~4.5 h

Shipping

$10 std · $20 express

Lead time

1-3 d print + 1-4 d ship

I created this bushing to support a ¾" square tube on each end where I would insert a threaded rod. It will be put to the test for compressing a LiFePO4 battery bank. At the moment, I only have 2 sizes of the model available: 5_16in ID x 5_8in Square x 5_8in Long Bushing.stl 3_8in ID x 5_8in Square x 5_8in Long Bushing.stl My threaded rod was 5/16", and so I thought that allowing for clearance I would need a 3/8" hole. I had forgotten that I already allowed for a a 0.1mm tolerance on both the inner diameter (larger) and the outer dimensions (smaller). The result was that the 3/8" version had a very sloppy fit. So, I created a 5/16" version and it fits perfectly. There's nothing wrong with the 3/8" version, but it's for an actual 3/8" rod. :-) NOTE: You may need to run a rod through the center a few times to clean up any Z-seam or PLR blobs. But, assuming your dimensions are dialed in, it will fit smoothly once you do. After I finish with my battery project, I'll post some STLs for other sizes. But assuming that I don't do so in time or don't create the size you need, you can access my fully parameterized CAD document on OnShape here: https://cad.onshape.com/documents/5ab8be0eb589f80654b3a70e/w/de594c941ade0ccc98efcb0b/e/ee2ed43c8844a52a0cf7a916 Please post any makes! Cheers! & Always Be Printing