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3M Scotchbright wheel

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petro1head16/09/2023 12:43:37
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984 forum posts
207 photos

These look like a great idea for polishing and deburing. Looking at 150x25 however not sure where to but and what grade plusmis there andecent alternative to 3M as they are quite expensive

Baz16/09/2023 14:28:43
1033 forum posts
2 photos

Last aerospace company I worked for used to use them a lot, we had a 8 inch grinder with a drill chuck either end and a plywood template to cut the circles of scotchbrite around, they were mounted on a 1/2 inch bolt with a couple of ply washers supporting them and that was it. Used to get a lovely finish with them on stainless bits but you need a mask and safety glasses because of all the bits and dust that comes off the scotchbrite.

Dave Halford16/09/2023 20:24:31
2536 forum posts
24 photos

Scotchbrite has Aluminium oxide in it

Dalboy16/09/2023 21:33:14
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1009 forum posts
305 photos

Not sure if THESE are the same type of thing as they say they are used to produce a satin finish on metal. Have been thinking of trying them if anyone has any experience of them.

I also looked at the M3 ones and found them expensive

bernard towers16/09/2023 21:38:24
1221 forum posts
161 photos

I use fine deburring wheels from 3m they are quite expensive but do a superb job, mostly used used for taking the burr off the last gear in a stack off the Hobber.

Edited By bernard towers on 16/09/2023 21:38:56

george baker 116/09/2023 22:10:05
39 forum posts

Hi

I'm not sure that they were the same thing but I worked in a place with a big floor scrubber that used similar looking pads. Odd pads were often available, so I suppose you could cut circles and after a few revolutions I suspect the circles would trim them selves.

G

petro1head16/09/2023 22:22:04
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984 forum posts
207 photos
Posted by Dalboy on 16/09/2023 21:33:14:

Not sure if THESE are the same type of thing as they say they are used to produce a satin finish on metal. Have been thinking of trying them if anyone has any experience of them.

I also looked at the M3 ones and found them expensive

No thay are the soft ones

Martin Connelly17/09/2023 08:21:06
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2549 forum posts
235 photos

Baz, sounds much like using a Scotchbrite type of wheel in a Dremel. The bits that fly off them is best kept out of the workshop.

Martin C

petro1head17/09/2023 08:40:44
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984 forum posts
207 photos

This is what I am refering to HERE

Michael Gilligan17/09/2023 08:49:55
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23121 forum posts
1360 photos
Posted by petro1head on 17/09/2023 08:40:44:

This is what I am refering to HERE

.

Which just goes to demonstrate a point that I have previously tried to make:

 

Similar to the situation with “loctite” … merely referencing a trade name is not enough !

MichaelG.

.

Ref. https://www.model-engineer.co.uk/forums/postings.asp?th=176664&p=1

Edited By Michael Gilligan on 17/09/2023 08:51:22

Baz17/09/2023 09:24:51
1033 forum posts
2 photos
Posted by Martin Connelly on 17/09/2023 08:21:06:

Baz, sounds much like using a Scotchbrite type of wheel in a Dremel. The bits that fly off them is best kept out of the workshop.

Martin C

Totally agree Martin, amazing how many bits fly off. We used the light brown grade which is quite coarse and after half an hour you were covered in dust. I don’t use them at all in my workshop, if I had to use them I would do it in the garden.

noel shelley17/09/2023 10:19:11
2308 forum posts
33 photos

For the sort of things we do I would recommend the 3M unitized discs, about 3" dia with the rolok attachment on a 4.5 angle grinder. They come in a wide array of grain size and for cleaning or satin finish are very good. They will take cast brass from as cast to satin, but be warned they are a lot more agressive than you might think. Their not cheap. Best used in the open as the particles will get everywhere. Noel.

PS When they were first about, they supplied a kit with a range of grits and the rolok fitting at a reasonable price to get you hooked.

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