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Old 08-13-2005, 11:44 PM
Bob Sigmon Bob Sigmon is offline
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Default Metal Prep Station

I just finished my metal prep station.



I have it set up to run continuous or with a foot switch.

The knotted wire wheel really cuts through the mill scale.
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  #2  
Old 08-13-2005, 11:56 PM
bgott bgott is offline
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That is a nice looking machine. However, I see a problem, at least if it was mine. I have a tendency to feed metal to a wire wheel until I stall the motor, then back off until it starts running. If I tried using that I would probably have to chase it across the shop. Maybe some folding outriggers on the back side? Or is it just a question of operator re- education?
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Old 08-14-2005, 12:03 AM
Bob Sigmon Bob Sigmon is offline
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bgott,

With the four locking casters, I don't have any problems. I can push plenty hard and it does not move. I used a 3/4hp motor and I can't stop it. Worst case it has just slowed a little. Also the weight of the unit helps to make it very stable.



It's hard to see in this picture but I used 1/2" plate to mount the motor and I also welded in some 1/2" plate between the frame members below the motor mount. In all the damn thing must weight near 100 lbs.
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Last edited by Bob Sigmon; 08-14-2005 at 12:08 AM.
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Old 08-14-2005, 12:17 AM
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Bob, I think that thing is alot sturdier than your pictures show. If so, good work! If not, you'll have more to do but it looks good to me.
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Old 08-14-2005, 12:38 AM
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Bob ....... Are you trying to give the guys over at OSHA a heart attack?

Where are the brush guards and the little black, red and white signs that say "DANGER" keep hands away and moving equiptment?

Job well done, looks great. I'm in need of a foot operated motor speed control unit. Any suggestions?

Bill
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Last edited by Diverbill45; 08-14-2005 at 12:39 AM. Reason: spelling
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  #6  
Old 08-14-2005, 02:14 AM
Mikey
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Bob, that's a nice unit. I'm trying to design something similar. However, I want to use 3 grinders. Is that a jackshaft I see turning that thing?

Mike
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Old 08-14-2005, 10:48 PM
Bob Sigmon Bob Sigmon is offline
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Bill,

I have the little red switch. Shouldn't the red be enough?
My foot switch is just an on/off. An actual speed control is going to be hard to find depending on the motor size. Sewing machine foot pedals are a speed control but would probably be limited to small hp applications.
I didn't see any variable controls when I was looking for my switch but I'm sure that they are out there or possibly an electronics type here could recommend the proper components to build one.


Mike,

I wanted the belt for the wheels in the center while keeping the unit narrow to save space, so I did use a jack shaft





I ended up using all 1 1/2" pulley and keeping the 1725 rpm's from the motor. At first I used a 3" off the motor to bump it up to 4000 rpm's but the breeze would blow my hair back. I find that the 1725 rpm's work just fine and I have a bit better control.
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  #8  
Old 08-15-2005, 05:39 AM
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Nice job Bob,It looks like it will do a great job!!
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  #9  
Old 08-15-2005, 07:21 PM
TJJ TJJ is offline
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Bob

Beautiful work. Seems like it will be very useful the way it's set up.

How about some epoxy paint


Have fun!

tjj
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  #10  
Old 08-15-2005, 07:42 PM
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Really nice job Bob. I like having the wheels out in the open so a guy can make good use of them. Those guards just get in the way.

Is the motor mount plate on a big hinge? Is the motor weight your belt tensioner too?

Let's see some pics of your paintjob.
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