joselito
off to a rocking start
Member since June 2018
Posts: 9
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Post by joselito on May 22, 2020 14:41:57 GMT -5
Hello all,
It's been a while since I posted. I'm still working on my small rock setup. Up to recently I had a flat lap that I decided not to use and want to switch over to a vibrating tumbler (thinking about purchasing a Lot-O, if you have recommendations, let me know!
I was able to purchase a bench grinder/polisher (see photos) for $50. It is 1/3 HP and has an RPM of 1725. The distance between the edge of motor to end of shaft is 4 inches. It has 6-inch wheels at the moment and it works. I don't know anything else about it.
I would like to know: Is motor sealed for lapidary work? Could I make a DIY trim saw on one side? If so, what size blade could fit on this (6, 8, 10)?
What are the names or links to materials I would need for this project? I'm still kind of illiterate when it comes to motor parts.
I would also like to attach a flex shaft to the other side. Any tips/links for that?
Or maybe all this isn't possible to make with this motor. If so, please let me know. Any input greatly appreciated! My wife has been nice enough to put up with my rocks, but I need to get moving on this soon.
Thank you!
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Post by Peruano on May 23, 2020 7:40:23 GMT -5
Safely, safely, safely. It probably can be done but protecting yourself from electrical shock, from dust and or vapor with fabricated hoods, protecting the motor from water or grit that could trash the bearings, and controlling the water dripping off of or flung off of the wheels will all be challenges. I started my lapidary work with a standard bench grinder with a water drip, but had problems with grit accumulation and major limitations on what I could do. My advice would be to use this for a muslin wheel for polishing and try to find a used lapidary arbor and tile saw for the functions you want as opportunities and finances permit. Enjoy.
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Post by manofglass on May 23, 2020 9:32:34 GMT -5
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Post by pauls on May 23, 2020 18:07:13 GMT -5
From what I see as the date stamp 3-73 that thing is coming up to its 50th birthday.
Before you do anything check out the state of the wiring, that motor looks to be around the vintage that ancient rubber insulation is cracking and breaking away leaving exposed live wires in all sorts of places.
While you are doing that run a new lead from the motor to a switch that will be well away from any wetness.
Good luck with your project.
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