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Post by knave on Oct 19, 2021 10:30:28 GMT -5
toiv0 got my wheels turning…. Did some digging… and took a silicon carbide 800 grit belt that was worn off, cleaned it well, and mixed up a small amount of art resin with 4-5 carats of diamond dust. Painted a thin coating of diamond resin on the belt and put into oven for 2H at 170°. Last night was the trial run. It works great and the resin is holding perfectly. Will post pictures here and longevity outcomes.
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Post by rockjunquie on Oct 19, 2021 10:35:20 GMT -5
toiv0 got my wheels turning…. Did some digging… and took a silicon carbide 800 grit belt that was worn off, cleaned it well, and mixed up a small amount of art resin with 4-5 carats of diamond dust. Painted a thin coating of diamond resin on the belt and put into oven for 2H at 170°. Last night was the trial run. It works great and the resin is holding perfectly. Will post pictures here and longevity outcomes. Pictures..... or... well you know the drill. 
That's awesome that you could get more life out of the belt. Good to know about art resin for the job, too.
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NDK
Cave Dweller 
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 19, 2021 13:10:24 GMT -5
I've recovered one wheel and plan to do the rest when needed. Super easy and much cheaper!
I made a jig to hold the wheel and used a motor from one of those Christmas deer yard statues with the head that moves. Spins at like 2 rpm so it's perfect for keeping the epoxy from puddling 👍
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Post by knave on Oct 19, 2021 13:23:42 GMT -5
Nate, were you able to get the bumpy surface like the novas have? Is it helpful or needed?
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 19, 2021 13:42:06 GMT -5
Evan, I redid my 280 soft wheel. I mixed the diamond powder (I think 10 carats) into the epoxy and smoothed it onto the wheel with a popsicle stick. Let the wheel turn on my jig and it smoothed out real nice. No texture at all. It works great. I followed the tut zarguy did. Only mistake I made was not reading the whole thread LOL, Lynn actually cut down on the amount of diamond powder he used after finishing several wheels. |
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Post by knave on Oct 19, 2021 13:46:25 GMT -5
Evan, I redid my 280 soft wheel. I mixed the diamond powder (I think 10 carats) into the epoxy and smoothed it onto the wheel with a popsicle stick. Let the wheel turn on my jig and it smoothed out real nice. No texture at all. It works great. I followed the tut zarguy did. Only mistake I made was not reading the whole thread LOL, Lynn actually cut down on the amount of diamond powder he used after finishing several wheels. thank you!! Got a link to the thread? |
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 19, 2021 13:50:33 GMT -5
Sorry I don't but I believe it's in the DIY section
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 19, 2021 13:53:42 GMT -5
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Post by knave on Oct 19, 2021 15:01:13 GMT -5
Maybe he deleted it. I saw someone had deleted a thread due to liability.
I painted thin and set the belts down on their side. Some did run down but it wasn’t bad. And I don’t have a “thump” when I use it.
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 19, 2021 15:05:31 GMT -5
Sounds like it worked out ok then 👍
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Post by toiv0 on Oct 19, 2021 19:20:09 GMT -5
Glad I could help, at least starting the wheels turning so to speak.
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Post by knave on Oct 19, 2021 21:24:26 GMT -5
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Post by knave on Oct 19, 2021 21:44:08 GMT -5
I could not be happier! I used 320# grit from china that I bought cheap awhile ago. Pic to follow
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Post by knave on Oct 19, 2021 21:46:04 GMT -5
  wet and dry. this diamond coated worn SC belt, cuts faster than our new super nova 280 wheel. Possibly 2x. Using 320# diamond powder in art resin. |
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Post by knave on Oct 19, 2021 21:47:52 GMT -5
I used 5 carats into a small amount of epoxy and coated 2 6” x 2.5” belts, put some on our worn hard wheel left of it, and made a nova burr for the dremel.
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Oct 20, 2021 8:24:52 GMT -5
That's awesome Evan, well done!
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Post by knave on Oct 20, 2021 9:05:37 GMT -5
Thanks! Can’t wait to do more wheels
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Oct 20, 2021 17:44:21 GMT -5
I used 5 carats into a small amount of epoxy and coated 2 6” x 2.5” belts, put some on our worn hard wheel left of it, and made a nova burr for the dremel. , I think you're the first person who said they re-coated a hard wheel. Please let us know how it cuts, wears, etc. But I would recommend adding comments to the original thread so it's all in one place. forum.rocktumblinghobby.com/thread/27289/refurbishing-diamond-wheelsLynn |
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Post by knave on Oct 20, 2021 17:49:02 GMT -5
Thanks Lynn, I’ll do that.
Since I put 320# on a worn 80 grit hard wheel, it’s hard to be conclusive, I believe the resin and diamond stayed secure on the wheel, but I will need to use 80-100 grit to be sure on the performance.
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Post by knave on Oct 30, 2021 9:46:33 GMT -5
Yesterday I ordered the rest of the diamond grits that I need. Ordered in the afternoon from JB for $.18 per carat. Late last night I got the tracking info already!
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