salvaged motor- looking for the right project build

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Forum topic by TerryH posted 01-12-2015 03:41 AM 779 views 0 times favorited 2 replies Add to Favorites Watch
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4 posts in 674 days

01-12-2015 03:41 AM

Topic tags/keywords: motor salvage power tool home made question

I’m new to the site. the Kids are off to school and I’m getting closer to retirement. I picked up a new hobby a couple of years ago making “tactical” nylon gear for friends (backpacks, rifle cases, etc). It lead me to working with plastic and now back to some woodworking. I’ve got the bug again after 15 years. You’re an inspiring bunch. I got the table saw cleaned up and rebuilt my router table and fence using ABS and HDPE. Except for a really worthless 3 wheel bandsaw, those are my only “big” tools. With that in mind, I’d like to make my own power tools. I have a salvaged motor from a B&D LE750 EdgeHog- $10. the Specs say: 4700 rpm, 2 1/2 HP, 11 amps, 150 in/lbs torque. It seems to run well hooked to a speed controller. Would it be worth my time for a 12” disk sander? I know it’s way too fast without the speed controller. Thanks!

2 replies so far

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2127 posts in 1445 days

#1 posted 01-12-2015 04:27 AM

I can’t say whether it would work for your application. But I wouldn’t take that 2.5 hp claim very seriously. It has become a competition amongst manufacturers to see who can claim the most power for their universal motors. The amperage draw is a more accurate indicator of power. Most 110 v. stuff nowadays doesn’t go over 15 amps, My guess is the Edge Hog is about 11 or 12 amps.

Well, it might work okay. I’d try it if the cost in money and time weren’t too great.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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4 posts in 674 days

#2 posted 01-12-2015 01:18 PM

It’s 11 amps. Simple calc ends up around 1 hp. I rechecked the gear reduction and it’s closer to 4 to 1. So, the RPM would be about 1200. Although that’s good for the sander, I bench tested it yesterday and the gear reduction is really loud. probably not a good candidate.

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