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Post by Mel on Apr 4, 2023 12:18:58 GMT -5
Can anyone confirm the motor needed for this saw? I've seen 1/5 HP, and 1/4 HP listed on various sites but not sure which is right. How powerful is too powerful?
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Post by Drummond Island Rocks on Apr 4, 2023 13:44:25 GMT -5
Too much power is not an issue for this application. 1725 RPM is the common motor speed. 1/4 HP is plenty but 1/3 HP is used more often due to availability. The 1/3 uses more electricity but for the amount they are used it is usually not a problem.
Chuck
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Post by jasoninsd on Apr 4, 2023 14:11:42 GMT -5
Tim The Tool Man says:
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gunsil
spending too much on rocks
Member since January 2023
Posts: 337
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Post by gunsil on Apr 4, 2023 17:20:46 GMT -5
I just put together a Raytech 6" saw, I used a 1/3 HP motor I salvaged from a junked table saw. Many washing machines use 1/3 HP motors and I have salvaged motors from those too. My other 6" and 10" Raytech saws came from the factory with 1/3 HP motors.
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Post by Rockoonz on Apr 4, 2023 19:17:48 GMT -5
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gunsil
spending too much on rocks
Member since January 2023
Posts: 337
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Post by gunsil on Apr 5, 2023 9:51:21 GMT -5
If buying a new motor, Grainger is an excellent source. They also are a good source for ball bearings of all sizes and uses should anybody need replacements for saw or grinding arbors.
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Post by Mel on Apr 11, 2023 14:10:23 GMT -5
Thanks for the feedback everyone. Super helpful! I have a few motors that came along with this and other rock stuff last year, so hopefully one of those works. Unfortunately the vice is totally gone. Hoping I can find something through a member here or maybe e-Bay or homebrew it. gunsil - I love Grainger; best place to get capacitors for the Genie! $4! Plus other hobby supplies and parts but it's easy to get carried away sometimes.
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Post by Rockoonz on Apr 11, 2023 16:33:18 GMT -5
Here's a rebuild video series, is it the same saw? I like their vice design.
I restored a 6" combo unit with the same saw on it last year and sold it, I went with patina rather than repaint and it turned out nicely. Aluminum requires special prep and primers for the paint to not peel off so I avoid it unless absolutely necessary.
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Post by Mel on Apr 11, 2023 17:00:46 GMT -5
Yep, same saw! I'm going to start tearing mine down this weekend and then see if I can find someone here who has a vice and can give me the measurements. I have access to a machinist and an engineer so I'm sure one of them can fab one up for me without too much work. Fingers crossed.
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Post by Rockoonz on Apr 12, 2023 0:57:10 GMT -5
Yep, same saw! I'm going to start tearing mine down this weekend and then see if I can find someone here who has a vice and can give me the measurements. I have access to a machinist and an engineer so I'm sure one of them can fab one up for me without too much work. Fingers crossed. I see you found the post I made about the combo vice, if you have someone around with a lathe and/or mill it would be easy. based on my known 3/4 inch wide thumb that incidentally had dirt under the nail today too, I think the rod is probably 1/4 inch, so if it's easier 6.5mm stainless rod, regular steel will do but stainless won't rust, might need to nudge the holes on the saw open just slightly. 1" or 25mm aluminum square bar about 6"/150mm long with a hole to fit the rod loosely enough to slide good. The steel plate for the vice can be drawn up after everything else is there, just made to fit. I like the wingnuts and rubberized roofing washers on the video better than the bar that was on mine, and a piece of adhesive backed measuring tape on it was a great idea.
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Post by Mel on Apr 12, 2023 12:27:51 GMT -5
This is good to know! Your old post gave me lots of good info too. Thank goodness for RTHF!
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gunsil
spending too much on rocks
Member since January 2023
Posts: 337
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Post by gunsil on Apr 12, 2023 15:22:03 GMT -5
Thanks for the feedback everyone. Super helpful! I have a few motors that came along with this and other rock stuff last year, so hopefully one of those works. Unfortunately the vice is totally gone. Hoping I can find something through a member here or maybe e-Bay or homebrew it. gunsil - I love Grainger; best place to get capacitors for the Genie! $4! Plus other hobby supplies and parts but it's easy to get carried away sometimes. Yeah Mel, I hate going into Grainger. After a career as an auto mechanic, being a jewelry craftsman and lapidary, and having all necessary tools for woodwork and plumbing repairs around the house every time I go there I have to tell myself I do NOT need any more tools! With used electric motors one needs to be sure they spin the right direction, but many electric motors can be easily changed to spin the way one needs.
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Post by Mel on Apr 14, 2023 10:57:41 GMT -5
Hey now, those rare earth magnets aren't going to buy themselves! I'm contributing to the local economy. Job security!
Princess Auto (Canada's Harbor Freight) is another one. At first my husband was excited I like to look but then he realized what sort of monster he created. Muahaha......
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Post by Rockoonz on Apr 14, 2023 11:39:00 GMT -5
Mel don't ask me how, but your mention of magnets sent my brain down a rabbit train that led to linear bearings, and it occurred to me that they might work for your vice travel if you want to stick with a hand tool assembly. Barranca uses linear bearings for travel on their big saws, so there must be versions that work well in a fairly dirty environment. They might not have the dimensions you need, and the math to figure it all out may be more complex than just building from a billet though. I hear a lot about princess auto, sounds better than HF. Bad Chad in Nova Scotia is on my youtube list of favorites, he seems to be a regular customer there.
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