I am looking for some ultra coarse 5" sandpaper discs. The grit is less than
0 on the normal grit meas. system. It is 40/ ought. I just spoke to 3M and Norton engineers and they said the abrasive particles would be so large that there would be less than a 50% chance of getting an abrasive particle on a 5" disc. They estimated I will need ten discs to be sure to get grit on three. Is it fair to pay them for discs that can't be used?Dixon
If you learned all that from Norton, why are you asking the question here . . . . again? Save it for your usu. entries on Trolls are Us.
Bob (can spot them a mile away) Swinney
"Dixon" wrote: (clip) I just spoke to 3M and Norton engineers and they said the abrasive particles would be so large that there would be less than a 50% chance of getting an abrasive particle on a 5" disc. They estimated I will need ten discs to be sure to get grit on three. (clip) ^^^^^^^^^^^^^^^^^^^ Why don't you just order the paper in sheets, and cut the disks yourself? Then you will be able to position the disks to improve the odds. Obviously,
3M and Norton don't know much about sandpaper, or they would have thought of this themselves. Glad to be of help. Keep the questions coming.
Stop drinking!
Carl
Metalworking sense of humor test results;
Carl Boyd A+ Leo lichtman A+ Robert Swinney - Sorry Bob , we're going to have to hold you back a year(for your own good).
Dixon sez:
Whew !! For a moment there I was worried you might rub me out with one of those 5" discs that may or may not have a single abrasive particle on it.
Bob (feed 'em, keep 'em happy) Swinney
Bob, I am prescribing two 750 vicodins for you. Take them. wait an hour, read post again. I feel there is hope for you.
P.S. If you were a woman I would know the problem.
Dixon
Dixon sez:
"Bob, I am prescribing two 750 vicodins for you. Take them. wait an hour,
Vicodins, huh?. I think those are for pain. Your OP wasn't painful -- just unclear.
Bob Swinney
"Robert Swinney" wrote in news:CLmdndeNMMOZkG_YnZ2dnUVZ snipped-for-privacy@comcast.com:
Since when is "unclear" spelled "S-T-U-P-I-D"?
love the humour.
what on earth would the guy want that coarseness for anyway?
Stealth Pilot
I was just trying to be charitable.
They're used mostly for finishing at Harbor Freight.
Dixon
Couldn't you just bash the part with a rock? Amounts to the same thing.
I had a tech once, very good hand, except everything we had to disassemble regularly bore a genuine hammertone finish, and I don't mean paint.
Pete Keillor
finally, finally I get the joke. :-)
yes I've seen harbour fright and it was quite agricultural in the precision area and got increasingly refundable in other parts of the shop. :-)
I thought myself that some of the rough finishes were just a poorly selected alloy that they'd tried to machine but now I'm not sure. I use a chinese drill vice on the shaper. it is dreadful but an accidental plane or two from a low cutter causes me not a moment of anguish. I modified the abysmally threaded clamping screw yesterday and found that it was the most beautiful free machining steel. How the wogginese managed to get such a poor finish on a beautiful piece of free machining steel has me beat. you'd have to really be working hard to get anything but a beautiful finish, my tool wasnt even sharp and I managed a neater finish.
maybe your abrasive paper is actually sold in china as a precision lathe cutting tool. :-)
Stealth Pilot
random deep circular grooves ? Alan, in Gosnells, Western Oz. VK6 YAB VKS 737 - W 6174
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