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Low Speed Sanding?

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Forum topic by DonBoston posted 06-24-2016 03:20 PM 776 views 0 times favorited 22 replies Add to Favorites Watch
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DonBoston

75 posts in 929 days


06-24-2016 03:20 PM

So, one of my more popular products, takes hours and hours to sand. It’s a wood/resin pendant, for either necklaces or earrings.

I normally sand them up to 220 on my belt sander, but after that, it’s all hand sanding up to 2000 with the last 3 steps being wet sanding.

Anything higher than 220 on the belt sander starts to melt the resin. So, I’m looking for a solution for power sanding, but at low speeds, which will allow me to cut hours out of these builds.

I’m currently contemplating using an air sander at a low speed, mounted to a small table top. Not sure how it will work though…

Any suggestions?

-- Don Boston RECreations by Don http://recreationsbydon.com


22 replies so far

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Rick M

7934 posts in 1847 days


#1 posted 06-24-2016 04:59 PM

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HokieKen

1807 posts in 605 days


#2 posted 06-24-2016 05:05 PM

Depending on your belt sander, you may be able to replace the motor with a slower speed or, if it’s belt driven, change the pulley ratio.

-- Kenny, SW VA, Go Hokies!!!

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DonBoston

75 posts in 929 days


#3 posted 06-24-2016 06:17 PM


Buffer

- Rick M.

Have one in mind, every one that I have seen has been high speed.

-- Don Boston RECreations by Don http://recreationsbydon.com

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mpounders

821 posts in 2362 days


#4 posted 06-24-2016 06:39 PM

You might consider a rotary shaft grinder, that uses a foot pedal to control the speed. You can run them from 0-10,000 rpms. You can use different Dremel attachments or sanding drums as long as the shaft is not 1/4”. You would have to buy a Foredom handpiece to use bits with 1/4” shafts. Here is a link to a cheap one from Harbor Freight. It’s a little noisy, but it works well. Seems like it would be ideal for something small like a pendant.

-- Mike P., Arkansas, http://mikepounders.weebly.com

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DonBoston

75 posts in 929 days


#5 posted 06-24-2016 06:53 PM



You might consider a rotary shaft grinder, that uses a foot pedal to control the speed. You can run them from 0-10,000 rpms. You can use different Dremel attachments or sanding drums as long as the shaft is not 1/4”. You would have to buy a Foredom handpiece to use bits with 1/4” shafts. Here is a link to a cheap one from Harbor Freight. It s a little noisy, but it works well. Seems like it would be ideal for something small like a pendant.

- mpounders

I’d be wanting to run a 5” hook and latch paper on it, would need something a little sturdier than that. Nice idea though.

-- Don Boston RECreations by Don http://recreationsbydon.com

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Richard

1907 posts in 2157 days


#6 posted 06-24-2016 07:22 PM

There are a lot of Random Orbit Sanders that have variable speed that might work.

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rick1955

258 posts in 898 days


#7 posted 06-25-2016 02:02 PM

I’d be doing tumbling or better yet vibratory finishing.

-- Working smarter with less tools is a true crafts person...

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DonBoston

75 posts in 929 days


#8 posted 06-25-2016 05:12 PM



There are a lot of Random Orbit Sanders that have variable speed that might work.

- Richard

I haven’t found one yet which will go a few hundred RPM’s, in a 5”.

-- Don Boston RECreations by Don http://recreationsbydon.com

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DonBoston

75 posts in 929 days


#9 posted 06-25-2016 05:13 PM



I d be doing tumbling or better yet vibratory finishing.

- rick1955

I thought about that (vib), but not sure how that would do since it’s really wet work. At least it was back when I did stone work.

-- Don Boston RECreations by Don http://recreationsbydon.com

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rick1955

258 posts in 898 days


#10 posted 06-25-2016 05:28 PM

There’s dry vibratory sanding as well. Based on your description it sounds like the way to go.

-- Working smarter with less tools is a true crafts person...

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hairy

2384 posts in 2999 days


#11 posted 06-25-2016 05:54 PM

Variable speed lathe , drill press. Take the motor from a treadmill and make an attachment.

Look on CL for a cheap Shopsmith.

-- stay thirsty my friends...

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teejk02

424 posts in 592 days


#12 posted 06-25-2016 07:28 PM

I agree with the buffing thing…jewelry outfits will have the attachments and the appropriate grits…pendant/earrings would suggest that the pieces are not that big in which case a Dremel type tool should work or if you make a lot of them a flex-shaft carving tool should work. For my rock tumbling/polishing stuff I use Kingsley North…they have a jewelry catalog.

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dalepage

134 posts in 308 days


#13 posted 06-25-2016 08:46 PM

Is it possible you could increase the ratio of the wood to the resin so that you could avoid the melting?

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diverlloyd

1450 posts in 1324 days


#14 posted 06-25-2016 08:49 PM

Dimmer switch

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teejk02

424 posts in 592 days


#15 posted 06-25-2016 10:33 PM



Is it possible you could increase the ratio of the wood to the resin so that you could avoid the melting?

- dalepage

or a harder resin?

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