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Thursday, September 30, 2010

Beefing up a cheap drill motor - Hack a Day

Beefing up a cheap drill motor

posted Sep 20th 2010 9:56am by Mike Szczys
filed under: tool hacks

[Rob] just finished reinforcing a cheap drill motor. He picked up the tool at Harbor Freight and ditched the case. The plastic retaining ring was replaced with a thick metal washer which he machine The washer uses three bolts to attach to the mounting plate that he welded together. We’re not exactly sure what he’s got in mind as he only mentioned that this will be used with a robot. We wouldn’t mind having one of these as a bench motor but there must be hundreds of uses now that it can be attached to just about anything. It seems Harbor Freight has become popular as hacking’s raw material source. The last example we saw of this was a welding table made from a utility cart.

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Robot Bracketry

Postby R.Riel » Mon Sep 20, 2010 1:53 am

So some of us are aware of our failure to mount those crappy HF drill motors. So i went down to the lab with an idea, and mocked up an idea.

You'll have to excuse the pics i took them with my camera phone

Heres the planetary gear set, i later discovered that the bearings inside arent round anymore, so im not sure how long the motor will last, i suggest a full disassembly and pack it up with some grease just to prolong the life.

Heres the plate with a few initial mounting holes drilled:
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