Sanding "Dimples" - Help needed

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Forum topic by ChunkyC posted 12-05-2010 04:18 AM 1606 views 0 times favorited 9 replies Add to Favorites Watch
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856 posts in 3427 days

12-05-2010 04:18 AM

I made me a set of dominoes today and the dimples need a little attention. Anyone have any tips or tricks on sanding dimples? This one has me stumped.

The dimples where made using a 3/16 twist drill bit.


-- Chunk's Workshop pictures:

9 replies so far

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79 posts in 3168 days

#1 posted 12-05-2010 04:33 AM


-- Peter, Central VA

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#2 posted 12-05-2010 04:36 AM

sandflex blocks might work. you need something conformal that can get right in there. You might think up something that attaches to the end of a spindle so that you can attach it to your drill press and make the work semi automated.

View rance's profile


4264 posts in 3333 days

#3 posted 12-05-2010 04:38 AM

Round nose ball mill for your dremel or one from MCLS made for a milling machine(but used in your drill press). If all else fails, paint them black.

Sometimes you have to MAKE a tool to do a job. Next time you drill those holes you may try making a D bit to drill them out. They’ll end up as round bottom holes, which you don’t get with a twist bit.

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

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1094 posts in 3739 days

#4 posted 12-05-2010 09:28 AM

I’ve had success by wrapping a piece of sandpaper around a drill bit – probably a size smaller than the hole in your case – and elastic banding it in place. To get the bottoms done too you’ll need it to project a little beyond the end, but then it “works itself” into the hole. You need to wind it the right way around, and it’s best if possible to use a variable speed drill and go slowly.
Might work.

-- "Do not speak – unless it improves on silence." --- "Following the rules and protecting the regulations is binding oneself without rope."

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#5 posted 12-05-2010 02:17 PM

If all else fails you could try filling the holes with coloured epoxy. Wipe off as much excess as you can and then use a card scraper when the resin has set but is not yet at its hardest.

-- David

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4384 posts in 3907 days

#6 posted 12-05-2010 07:23 PM

On a side note, I got lots of complaints about my store-bought dominos…the ‘twelves’ version, because the holes were all painted black. I tried an artist’s brush, q-tips, nothing would work….until I used the hypodermic needle filler to an inkjet cartridge re-filler kit. Just sucked up assorted acrylic paints, and filled the holes on all the 7 and up dots with their respective colors with it! Easy!

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

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#7 posted 12-05-2010 07:27 PM

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#8 posted 12-05-2010 09:21 PM

Vicki: Thanks for the tip! That may just do it.

I’m not going to paint or fill the holes. I use maple vernier over walnut so that I didn’t have to paint the dimples. The problem is the substrate from the PSA vernier. The adhesive “sheet” on the back of the vernier doesn’t drill well and leaves a little behind. The dimples need to be sanded a little to remove the adhesive “hair” that was left behind.

-- Chunk's Workshop pictures:

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856 posts in 3427 days

#9 posted 12-06-2010 03:06 AM

Thanks for the tips. I had to go to town this afternoon so I stopped at the hardware store. I purchased a Dremel cutter, No. 192, that worked quite well. It’s the one that looks like a ball on the end of the shaft. It really cleaned up the dimples quite nicely.

-- Chunk's Workshop pictures:

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