Sanding Balls for Internal Sanding

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Project by Jim Jakosh posted 11-01-2017 05:47 PM 4208 views 14 times favorited 31 comments Add to Favorites Watch

I made a couple more sanding balls using a smaller pattern for the cover and different rubber balls and glue.
I had made a sanding ball like this on this blog:

This time I used a different rubber ball ( super balls) but it did not stay on with epoxy so I used contact cement and they seem to be on there to stay. On these sanding balls I cut the groove for the O ring a little closer to the top so I could use a smaller cover made from 2” wide strips of Egyptian Gold sandpaper from Klingspor.
The arbor is a piece of oak with a 1/8” steel rod epoxied in.

Here are some process shots:

And these are the fixtures I used to cut the covers. I took some straight on shots in case anyone wants to copy them:

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

31 comments so far

View Ivan's profile


15601 posts in 3505 days

#1 posted 11-01-2017 06:00 PM

Pretty cool idea, realy funny! I can’t number occassions where I needed something like this.

-- Ivan, Croatia, Wooddicted

View hoss12992's profile


4166 posts in 2531 days

#2 posted 11-01-2017 06:34 PM

That is awesome. Absolutely love it. I have had many occasions that this would have worked perfectly. Thanks for sharing and great job buddy

-- The Old Rednek Workshop

View lew's profile


12957 posts in 4393 days

#3 posted 11-01-2017 06:35 PM

Nicely done. Much easier than these-

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View Monte Pittman's profile

Monte Pittman

30513 posts in 2976 days

#4 posted 11-01-2017 06:50 PM

Very cool idea

-- Nature created it, I just assemble it.

View Bobsboxes's profile


1443 posts in 3302 days

#5 posted 11-01-2017 07:05 PM

Great thinking, appreciate you sharing, thanks.

-- Bob in Montana. Kindness is the Language the blind can see and deaf can hear. - Mark Twain

View Joe Lyddon's profile

Joe Lyddon

10899 posts in 4690 days

#6 posted 11-01-2017 07:45 PM

Very COOL, as usual…

Thank you…

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:

View  woodshaver Tony C   's profile

woodshaver Tony C

7226 posts in 3991 days

#7 posted 11-01-2017 07:50 PM

Great idea Jim! Love it!

-- St Augustine FL, Experience is the sum of our mistakes!

View peteg's profile


4435 posts in 3461 days

#8 posted 11-01-2017 08:14 PM

Nice one Jim very practical for the rounded bottoms, I use a lot of old car valves with rounded dense sponge glued on for shorter hollow forms.

-- Pete G: If you always do what you always did you'll always get what you always got

View bushmaster's profile


3794 posts in 2921 days

#9 posted 11-01-2017 10:29 PM

Nice thinking there, Just been home a wee and a half, at Chicago they open my suitcase to find the ring you gave me,
Haven’t had time to do any projects, bu did help a couple friends out, today I machined a swivel. for the top wheel on a delta bandsaw. No parts available, now he has a steel one and I guarantee the shaft will not come loose. Will send you a picture

-- Brian - Hazelton, British Columbia

View Jim Jakosh's profile

Jim Jakosh

23853 posts in 3743 days

#10 posted 11-01-2017 11:23 PM

Thanks you all for the nice comments.

Hi Lew. A few years ago I bought one of those inflatable ball sanders and it would leak down and the covers were about $5 each.I started making the covers but it was a heck of lot more work than these and the ball would go flat and throw the cover.

Hi Brian. I’d like to see it!! I love making my own replacement parts, too. Better than you can buy. I hope they left you keep the lathe ring!!

cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View mafe's profile


12356 posts in 3727 days

#11 posted 11-01-2017 11:50 PM

Good thinking, love it.
Best thoughts,

-- MAD F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View doubleDD's profile


9045 posts in 2681 days

#12 posted 11-02-2017 12:19 AM

Well done Jim. Looks like there’s two happy faces over there. I had thought of the super ball idea size but figured they may not be flexible enough. I am determined to make those covers soon. I have like 8 bowls waiting for some inside detailing. They are expensive and this is the perfect solution.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View Cliff 's profile


1625 posts in 2362 days

#13 posted 11-02-2017 03:54 AM

Hi Jim. That has got me thinking. There have been occasions where I would like to sand in a hard to get at spot. I still need to look carefully at what you have shown as I still don’t have a full grasp on that kind of sanding, but it sure makes it a bit clearer now you have presented this project. Thanks Jim.



-- Cliff Australia : Snoring is good. It blows away all the Sawdust.

View irtamos's profile


293 posts in 2682 days

#14 posted 11-02-2017 07:40 AM

Well done.

-- irtamos, Belgium

View Bob Collins's profile

Bob Collins

2751 posts in 4322 days

#15 posted 11-02-2017 08:40 AM

Well done Jim, is on the must do one day list.

-- Bob C, Australia. Your best teacher is your last mistake.

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