Hmm...how DOES that work?!?

Kalindras

Kalindras

Joined
Aug 24, 1999
Messages
933
All,

I'm trying to wrap my head around plans for a new grinder, here, and I'm thinking about a secondary belt over to a disc grinder. I'd like to use one of Rob Frink's bevelled discs, but I've got two questions about them.

While their pragmatic nature cannot be denied, I'm wondering how big a pain it is to put paper on one? Since it's bevelled, then I wouldn't guess that you can just spray adhesive on that sucker and slap a flat sheet on it, can ya?

The other question I have is, you have to either jury-rig or machine a special workrest for it, don't you? I mean, is the angle great enough that a standard table (that I might find off of an older tool) won't fit close/safely enough? If not, what do you do? Engineer one, or will Rob machine one up for you? Anyone have one of these discs, and have surmounted these issues? Rob? Bueller?

Lemme know, since I'd really like to use one, but if it requires TOO much weirdness, I'll just make shorter knives...:D!
 
I have one and the paper goes on just like a flat disc - the bevel does not have any affect on it. I have a work rest and you can barely see the difference from the center to the edge. Runs smmmoooooth.
 
I have two of the horizontal disc sanders. The small one is 8" in diameter, with a 2 degree angle from edge to center. It is mounted on a single arbor, v/s reversing,1/2 hp motor. The larger one has 2 10" wheels with 3 degree angle to center. The double arbor motor is mounted 90 degrees from horizontal, with a pivot in the mount, so the wheels can be rotated 180 degrees. This is needed for the correct rotation for each side of the blade. I have found that a foot switch works best, blade in contact with wheel at start up. This gives me 3 grits to work with, without a change of grit, 60-100-150. I then go to the belt grinder and start there with 220 grit. You have to spend some time for the learning curve on this type of machine, but it is well worth the time. I have cut my grinding time by almost 50%, by using the horizontal disc sanders.
KEN (WWJD)
 
Kalindras,

The beveled disks is an item that the customers know more about than I do. The feedback that I've received has always been very positive.

Yep, just use spray adhesive and slap your favorite paper on the face. Not to worry about wrinkles or ridges as the bevel is so suttle that the paper forms OK. The face of the disk is actually 8-7/8" diameter so that a 9" abrasive will slightly over hang. The flap can be formed around the disk edge and helps to make very nice transition in the ricasso area. (I hope I used the correct verbage)

As far as a work rest, you are on your own here. Many don't use one...it depends on what you need and what your resources are... I guess. ...and how you plan on using the tool... I'll gladly help out if I can.

Several forumites have these disks in one configuration or another....maybe they'll find this thread jump in....The thread title may be keeping them away because it is not clear what's inside until you get here.

If you need any help, feel free to drop me a line.

Sincerely,
Rob
 
ok guys, i have not seen one of there disc grinders. i can see how you would want a rev, motor. so do you work the steel the against the disc vertical? or horazonal? i would apprciate how you work one of these puppys? also this is for blade grinding, not just tapering tangs right? thanks
 
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