Ever used a rock tumbler for... not rocks?

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Xel

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Aug 16, 2018
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Longmont, Colorado
Haven't been around much lately: I'm a new mother now, so time is short! That said, it was nice to get back into the shop for a wonky experiment that's… hmm, technically a small wood-turning. 😉

I needed some dice for a tabletop RPG my family was wanting to play, so I thought why not make them? I'm putting so much effort into my character anyway! Naturally I thought of pen blanks first, but there's a surprising lack of info on the net about the process. Most would recommend just buying blank wooden dice and painting the sides or casting them out of resin; both options didn't seem that interesting. I went through my stash and remembered this beautiful olivewood hybrid from George:

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… which I squared up and did finish cuts on a scrollsaw I found at Goodwill for $9.

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I didn't want to spend the rest of the night sanding if I'm being honest. That's when I saw my rock tumbler out of the corner of my eye and thought… science is an excellent complement to laziness and inebriation. I thought it might work at least to knock down the sides and edges, yeah? Tossed the dice inside along with some polishing substrate from prior tumbling sessions, along with a dash of water.

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Set it on the lowest speed and tumbled them for a day, totally forgetting to set the machine in the foam enclosure to dampen the sound.

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Here's the difference between a fresh cut die and a still wet tumbled one.

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Mounted a diamond ball bit on the drill press, flooded the pips with paint then promptly removed it in favor of the bare look, rubbed 'em down with Aussie Oil, and voila!

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In conclusion… Are they accurate? Lol, you bet your sweet bippy they're not. Nor would I recommend using a rock tumbler for anything besides tumbling rocks, in hindsight. But the rule in our house is "we share our experiments: win, lose, or draw". And hey, sometimes you care for things even when they're obviously just a little messed up.

May your 2023 be full of curiosity!
 
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MikeD2001

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Dec 28, 2022
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Salem NH
Yes, I am sure the casinos would not like your dice :) I do love the idea of using the tumbler to soften the edges, I wonder if that would work with polishing some turnings. I also love the use of the diamond bit.
Win, lose or draw, I learn more from my failures than my successes.

Keep thinking,
Mike D.
 
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greenacres2

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Northwest IN
Congrats on becoming a parent!! Willingness to experiment will come in handy in parenting, and while some experiments will be successful, others will not…at least that's what I've found!

Before reading a word of your post, i thought that olive looked familiar, I've got some with blue resin and some with green—all from George @robuticon. Haven't heard from him in some time,hope he's doing all right.
Earl
 
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dogcatcher

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Jul 4, 2007
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TX, NM or on the road
Search "barrel tumbler sander" on Google. My rig for sanding wood toy parts was built out of a 5 gal plastic bucket. It looked like a mini cement mixer.

If I remember correctly I added crushed walnut polishing media in the sander barrel. Thus was back in the 1980s, so I am not sure of all of the details.
 
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1080Wayne

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Brownfield, Alberta, Canada.
Thanks for the update and your pictures Xel . Who cares if they are a bit biased in favour of the house . I would have expected a bit more wear disparity between the resin and the wood . I suppose a stabilized wood would be best .
 
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Woodchipper

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Cleveland, TN
Congratulations on your new addition! They are most precious... we have two kids and nine grandkids!
Great idea for the rock tumbler. The dice look good. As mentioned, might be good for other applications, too.
 
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Xel

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Longmont, Colorado
Had a great time reading your responses and going down the rabbithole of cobbled together tumbling rigs (thanks dogcatcher for that!). Yeah Wayne, the house bias is a story old as time but I feel like these dice aren't on my side. It's fun playing a character who insists on using her own dice which always work against her, lol.

Congratulations on your new addition! They are most precious... we have two kids and nine grandkids!
Thank you! I'm having so much fun four-months--in; maybe that will change with time. 😆
 

TDahl

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Dec 11, 2019
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Brentwood
Congratulations on becoming a mother. You will have many precious adventures and memories to look forward to .

The dice turned out great. What a great idea.
 
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Charlie_W

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Nov 16, 2011
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Sterling, VA USA
Congrats on becoming a mom!!

I like your dice idea and write up👍 They look really cool!
Perhaps a larger set of dice as a table decoration would be interesting too.
Did you consider using oil instead of water in the tumbler?…maybe walnut oil?
 
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Xel

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Longmont, Colorado
Did you consider using oil instead of water in the tumbler?
Not until you mentioned it; that's a great idea. As Wayne said I thought there'd be a wear disparity between wood and resin and there was just slightly, maybe the oil wouldn't soften the wood as much as water. Thanks for the tip!

I did try using the tumbler x 6 hours to scuff both brass and steel tubes (unscuffed on the left) and thought it came out okay. For a couple tubes it's faster by hand but if it's a large number...

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Curly

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Saskatoon SK., Canada.
In the olden days there was mention in one of the Fine Woodworking magazines about rounding over, softening the edges of small blocks or dowels by lining the inside of larger plastic or Tupperware containers and lids with sandpaper or putting pieces of cut sandpaper in the tub (memory 🙄), putting the wood inside and taping the lids to make sure they stayed on. Then toss them into the dryer with a towel or two and run it on Air Fluff for a while. All the corners were sanded off when you opened the lid. No liquids needed.
 
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