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View JoshNZ's profile

Buy or Build sanding pads

by JoshNZ
posted 12-12-2018 08:16 PM


19 replies so far

View MrWolfe's profile

MrWolfe

351 posts in 633 days


#1 posted 12-12-2018 08:29 PM

i’ve found some knock off brands on Amazon that sell hook and loop backed sand paper that fit my Rockler R.O. sander, my Skilsaw Octosander and some of those soft foam velcro sanding blocks. They may be a lessor quality than the name brand sandpaper but I carefully found the ones that fit my sander and they are a lot less expensive. 60 sheets for the same price as 10.
Good luck

View pontic's profile

pontic

697 posts in 1118 days


#2 posted 12-12-2018 08:36 PM

Make a mandrel out of old dense foam mouse pads and an old rubber sanding mandrel and then use double sided tape to put the home made sanding disks on the sander.

-- Illigitimii non carburundum sum

View RobHannon's profile

RobHannon

317 posts in 1040 days


#3 posted 12-12-2018 08:37 PM

You could buy PSA sandpaper sheets and either cut out by hand or get a punch the size you want. I’d recommend a tool called a wad punch or a hollow punch. Very simple cutter that you will be able to clean adhesive off of when you are done a batch. Same concept could be made very cheaply with an appropriately sized piece of pipe with a bevel sharpened around the radius, it will just require more frequent resharpening.

View JoshNZ's profile

JoshNZ

133 posts in 1579 days


#4 posted 12-12-2018 08:45 PM

I do have a center lathe also so could quite easily turn a punch and harden it for punching discs.

Double sided tape is not a bad idea I was also thinking the 3m spray adhesive might work. Do they have enough holding power for the duration of the sandpapers life? I guess you’d have a mandrel for each grit rather than swapping sheets on the end of a mandrel for this technique.

If you spray adhesive or double sided tape on the face of the rubber foam pad what is a suitable material that won’t break down? I imagine mouse pads/neoprene would fall apart easily

View RobHannon's profile

RobHannon

317 posts in 1040 days


#5 posted 12-12-2018 08:56 PM

EVA foam probably would hold up for a while. Butyl rubber would as well. Leather could work if a stiff backing is good. Any of the soft foams/rubbers are going to wear out from use regardless of the adhesive.

View Wildwood's profile

Wildwood

2740 posts in 2644 days


#6 posted 12-13-2018 01:28 PM

Not sure where you have shopped but might take a look at these places:

http://vinceswoodnwonders.com/store/

https://www.woodworkingshop.com/abrasive-discs/

-- Bill

View OSU55's profile

OSU55

2406 posts in 2499 days


#7 posted 12-13-2018 01:37 PM

Down a rabbit trail – using hand planes will pretty much retire your ros. Mine stays on the shelf the majority of the time, and I dont have to listen to it run, wait for the hand numbness to go away, or worry about the dust created.

View TheDane's profile

TheDane

5690 posts in 4173 days


#8 posted 12-13-2018 01:58 PM

Down a rabbit trail – using hand planes will pretty much retire your ros.

You can’t use hand planes on the lathe.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View RobHannon's profile

RobHannon

317 posts in 1040 days


#9 posted 12-13-2018 02:09 PM



Down a rabbit trail – using hand planes will pretty much retire your ros.

You can t use hand planes on the lathe.

- TheDane


Sure you can….. once.

View johnstoneb's profile

johnstoneb

3130 posts in 2682 days


#10 posted 12-13-2018 02:35 PM

I just bought a package of 50 Gator pads at Lowes. At $22 this works out to be .44 per disc. I don’t know how they are going to wear as I have only used them to sand epoxy paint and they load up before wearing out. My more expensive pads were loading up the same way.

-- Bruce, Boise, ID

View JoshNZ's profile

JoshNZ

133 posts in 1579 days


#11 posted 12-14-2018 04:08 AM

Anything from the US to NZ seems to cost an arm and a leg for shipping these days. For consumer orders anyway. Can guarantee it won’t be here before Christmas =(.

This is as far I got with the hacked pads yesterday. Haven’t done the punch yet will just wear out a pair of scissors for now. I glued up one pad with spray adhesive I’d say the foam is going to go with the paper when its times up. Prob not the best material I might need to order something more dense

View OSU55's profile

OSU55

2406 posts in 2499 days


#12 posted 12-14-2018 01:03 PM

Oops….didnt realize this was in the turning forum. I 2nd the recommendation for Vince’s woodnwonders, but with a NZ locale doubt that it helps. Not sure what size turnings you are doing but I find 2” dia pads with 2-3/8” discs handles up to the 14” dia turnings Ive done, and the smaller size may be cheaper to use.

Wish posters would state locale in initial posting – I cant make source recommendations for those outside the US.

View RobHannon's profile

RobHannon

317 posts in 1040 days


#13 posted 12-14-2018 03:03 PM



Anything from the US to NZ seems to cost an arm and a leg for shipping these days. For consumer orders anyway. Can guarantee it won t be here before Christmas =(.

This is as far I got with the hacked pads yesterday. Haven t done the punch yet will just wear out a pair of scissors for now. I glued up one pad with spray adhesive I d say the foam is going to go with the paper when its times up. Prob not the best material I might need to order something more dense

- JoshNZ

Question, the black mark on the T nut, is that a tack weld? Sharp looking sanding pad mandrels by the way.

View JoshNZ's profile

JoshNZ

133 posts in 1579 days


#14 posted 12-14-2018 07:47 PM

No it’s just spilled threadlock. I considered tacking them but the bolt or nut was zinc plated I think, it usually ends up on the tungsten X(.

I’ll play around with the sizes thanks for the suggestion.

View JoshNZ's profile

JoshNZ

133 posts in 1579 days


#15 posted 12-14-2018 10:40 PM

I’m sure its obvious but it is a piece of scrap with a hole for the T nut bored into it, then a bolt with a nut and washer on it, screwed into the T nut from the other side. Then I’ve backed the nut back down the bolt so it clamps against the wood, cut the head of the bolt off, and mounted it in a Jacobs chuck on the lathe and turned to shape.

I trimmed the foam on the next pads with a razor blade with the lathe turning at 50RPM or so, made a much nicer finish than the chisel did on that first one. All seems to work ok, I’m just not sure on the life of that foam I would like to find something more sealed (butyl rubber as someone suggested probably), and still not sure how the spray adhesive is going to work for swapping discs. Fingers crossed

View Wildwood's profile

Wildwood

2740 posts in 2644 days


#16 posted 12-15-2018 11:31 AM

You got me assumed you live in North America! Made same thing you did and didn’t work out for me with wood, sandpaper & spray adhesives. Hope you have better luck!

Might look into some interface pads.
http://www.timberlywoodturning.co.nz/products/Sanding-Mandrel-Soft-Top-Pads-.html

Not sure what these folks sell.
https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxvd2Vud29vZHR1cm5pbmdzdXBwbGllc3xneDozMzEwNTQxMWY2MWYwMmQy

-- Bill

View JoshNZ's profile

JoshNZ

133 posts in 1579 days


#17 posted 12-16-2018 09:18 AM

Got done with the first two bowls they definitely work well however when it came time to change the discs the foam came with the disc. Will try another material as backing pad.

Timberly and carbatec are prob our two main wood turning suppliers I was looking at his stuff. Still wondering if there was a way to do it cheaper. How many discs does this modern hook/loop backing get through before it’s losing traction?

View OSU55's profile

OSU55

2406 posts in 2499 days


#18 posted 12-16-2018 12:41 PM

Dependant on the backing pad and velcro used. Had great luck with ones from Vince, but cant not readily available to you. Use a back up pad in between the stemmed pad and the disc. cheaper to replace than the whole stem and pad, and the come in various durometers and profiles. I know Ive went through hundreds of discs on one, but dont have a count. I have used them incorrectly, got them too hot, and had the velcro to foam adhesive slip, but used correctly they last a long time.

View Wildwood's profile

Wildwood

2740 posts in 2644 days


#19 posted 12-16-2018 01:42 PM

Not sure can answer your question because depends on sandpaper, and light pressure in use.

-- Bill

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