New Buffer/Disk setup

SteelSlaver

SteelSlaver

Joined
Feb 17, 2007
Messages
3,375
Well, I made it. Has a 1 hp 3phas and a TECO constant torge VFD. Has exchangeable heads and I went from a buffer to a disk setup it 30 seconds. You loosen up the knob on top slide the head in and remove the belt. Then remove the head. Then place in the other head, place the belt on and pull out on the head to tighten the belt and lock with the knob. Goes from about 60rpm to flat flying with the turn of the knob and reversed directions with the flip of a switch. I mounted it on a stand with locking casters. plus, the assembly rotates by moving the arm below it to loosen a 2" union nut, and then after you have it pointed the way you want locking it back down. Runs like a dream. Just have to wire in the foot petal now and make myself a couple more buffer shafts. Shafts are 1" turned to 3/4" for the bearing. Has drilled out 3/4: nuts with 1/4-29 set screws drilled and tapped on 3 flats so I can adjust them to put on as wide as buffer as I want and tighten up with a nylock nut. The buffer shaft is 24" end to end so plenty of room. The disk is only about 14" side to side and I have a 9" on the drive side and a 12 on the other. I am a happy camper with this unit.

I maybe making some more of these if there is any interest. This one was a proof of concept one and there will be some small improvements if I make more. Jim
Buffer
buffera.jpg

Disk
DiskA.jpg

side view
DiskSide.jpg

swivel setup
Swivel.jpg

Buffer head
Buffhead.jpg
 
Well I added a plug in foot petal. I forgot to mention the TECO VFD I used uses 110 to make the controlled 220 3 phase. A flip back belt guard is next. Does anyone want any bench grinders. The ones I was using for buffers will be up for grabs soon. I am a couple one for an actual bench grinder and another for my sharpening wheels.
 
Wow Jim,

Cool shop! Love your new construction. I get it conceptually, but don't quite understand the mechanics you explained (I'm pretty slow). We could put your bench grinders to use in the high school, but I doubt it'd make sense to ship them over. Thanks for posting.

All the best, Phil
 
Thanks guys. I have a lathe, a mill, a KMG and a clone, 2 bench drill presses, a metal and a wood band saw, a work bench, anvil and vise all crowded in 11x 22 so it gets messy. The garage is just as bad.

Phil, each buffer shaft has a piece of square stock mounted perpendicular to it. The motor has a receiver like a KMG mounted above it. When you slide the square stock all the way in the receiver the belt is loose and easy to get off and on. When you want it tight you pull out on the shaft, pulling the square stock part way out of the receiver and it tightens the belt and then you lock it down with a knob that has threads on it that pass thru the receiver and press against the square stock. Like tightening a grinding belt on a KMG, only with a V belt. You can have as many shafts and buffer wheels as you want ready to go as well as a disk grinder. You can trade from one to the other in well under a minute. Just like changing contact wheels or platens on a KMG. The motor plate is also set up so you can swing the lever arm under it and loosen it up and turn the motor and wheels to what ever direction you wish then turn the lever back and lock it all in place. Is that clearer? To bad the bench grinders won't fit in a flat rate box, I would give them to something like your school.
 
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Hey Jim,

Oh, I think I get it. Each shaft, with its own set of bearings and pulley, is mounted on its own T and you switch out the entire assembly. Correct?

By-the-way, the photos are terrible and make it pretty hard to see. They look like the ones I have taken when I left the camera in the macro setting.

All the best, Phil
 
Thanks. Phil that is correct. I should have used a camera stand I was to shaky in a couple of them. I should have taken them over but, had to much other stuff to do. LOL always
 
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