Insulated Power Bus Bar Mount (Parametric)

by tdeagan, published

Insulated Power Bus Bar Mount (Parametric) by tdeagan Apr 30, 2013
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I needed to mount a simple 12VDC power distribution system in a project. Home Depot had some lovely Ground Bar Kits in different sizes. To use for the positive voltage I needed an insulating standoff. The OpenSCAD file is parametric so you can change the config variables to different size bars with different numbers of holes. Drop the bus bar in and then screw down the wires from the sides.

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wow. the default 10mm walls are making this waaay bigger than I'd visualized. The parametric WALL variable makes this easy to adjust. But I wanted a LOT of insulative gap since I'll have 30A of 12VDC running through this and I really wanted to avoid a frame ground short.

the space between the holes is a bit small and two of the pillars between collapsed during printing, but there doesn't have to be insulation between the wires on a power bus, so no biggie. Reducing the diameter of the through holes slightly would alleviate this.