Idea --"Disk attachment" for VS KMG

MeDoctor

MeDoctor

Joined
Dec 8, 2003
Messages
279
Lately I've been drooling over the Beaumont Metal Works 9" VS disk grinder, but my tool budget is pretty well shot after buying my KMG last December. I'm thinking of mounting a bench mandrel with a disc to a steel plate and having the plate pivot from the front edge of my bench. That way it'll swing down out of the way when not in use, and when locked in the "up" position the pulley on the mandrel can be aligned with the KMG motor pulley. Slip the drive belt off of the KMG and run a longer belt to the mandrel (it'll need about an A50 to reach -- the KMG uses an A23).

A 2 HP VS 9" disc grinder for less than $150 including the cost of one of Rob's discs...
 
I have looked at going one step farther.
I am considering making a 9" aluminum contact wheel with the outer surface solid, and very slightly domed (1-2 degrees).The bearing seat would be recessed just below the surface. I could have a sheet of paper on all the time as well as the belt. Use the side for flat work and the belt for hollow work.Variable speed already built in (VS Bader B3). Dust and spark collector right below already.
Stacy
 
Pictures will be required.:D
 
Now that is one great ideal. I am now thinking of a tooling arm with a heavy angle fork welded off the one one side with a pillow blocks on the arm and the added fork and grizzly 10" shaft mounted contact wheel between the pillow blocks and a 9" disk on both ends of the shaft. Power via belt which could be change in the normal manner. 2 different grits on disks and with my new VFD reversible.
 
I've been working on a similar design for several months too. I've considered using a right angle gear drive that runs off of the KMG drive shaft to position the disk in a more usable position for my set-up. I also thought about lengthening the standard drive shaft, adding a pulley and belt that goes to a pillow block mounted shaft with disk. I thought about a sliding coupler that would allow it to be connected or disconnected with just the throw of a lever. I also thought about simply getting another 3 phase motor with a switch that toggled between the 2 motors (grinder & disk motor) allowing my VS unit to be used for both the disk and grinder. I have a running usable Beaumont Disk but its not VS, which, IMHO makes or breaks just how functional the disk is for knifemaking. Yeah, I've been thinking about this one for a while too. Maybe between all of these ideas we can make an accessory we could all use.
 
I have made a disk grinder attachment for my DYI KMG-like clone. Posted pics of it too, in this very forum. It is cold in the garage now, so I can't snap it again and my search function ain't there anymore

It is a 8"x8" 3/8 plate, with 2 pillow block BB mounted. A shaft goes through with a pulley on it. The pulley is driven right off the driving wheel of the grinder with a 4-rib $4 flat belt.

The plate mounts atop of the tooling arm . Comes on/off in a jiffy. You tension the belt the regular way. Barely any tension is required.

On the disks themselves: 12" can be bought (see my post) as replacement part from Grizzly. 9" I recommend you get from KMG in a crowned version . There're places on the web that sell 12" disks in different grit (type and size) by the disk, very cheaply. May be also in my post :)
 
That's one of the things I love about this place! I hadn't yet thought of mounting it on a tooling arm.
 
Just finished mounting a 6" disc salvaged from my old 4x36 Sears belt sander to a 170 RPM gear motor. I made a small mounting plate for the motor so I can clamp it in my bench vise, so now I have a small horizontal disc grinder. Right now my server is refusing to allow my FTP client to connect -- otherwise I'd put up a photo.

Maybe I'll have the local glass shop cut me a 9" diameter piece of plate glass to glue to the 6" disc. I still intend to build the attachment for my KMG though.
 
I've got an old blower drive shaft and pulley that I salvaged from a unit being scrapped at work. Looks like an easy enough task to mount it across the MAP arm and the tooling arm. All I need now is a 9" disc and an A43 belt.
 

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Here's the horizontal disc. All that's left to do is clean up the wiring.
 

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