参数化线性缓冲器带导线插入件

Parametric Linear Bushing with Filament Inserts

2023-08-23 17:32:58

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Summary

A 3d-printable plastic bushing SCAD code based on the rather clever design of delgueda that uses POM, nylon, or other filaments as bearing material inserts.

Upon testing their version, I noticed that with only 4 inserts the bushing could still rock and rub against the rail. I modified the SCAD code to support variable numbers of inserts (5 & 6 seem good), as well as made the spacing adjustable and added end chamfers.

One thing to try is to roughen the insert filament with a file to allow rubbing dry lubricant (graphite/moly) into it for a self-lubricating effect. These bushings are supposed to be quite long lasting and can be made very tight.

Print Settings

Printer brand:
Prusa
Printer:
i3 MK3
Rafts:
No
Supports:
No
Resolution:
0.4
Infill:
none
Filament brand:
Filacube
Filament color:
black
Filament material:
HTPLA+
Notes:
Ensure dimensional tuning has been done. Adjustments can be made in the SCAD file but I'd recommend making sure your prints are accurate first.