Fred.Rowe
Knifemaker / Craftsman / Service Provider
- Joined
- May 2, 2004
- Messages
- 6,848
FINDING MYSELF,
In need of a more powerfull vacum for the knife shop; I spent a couple of hours at the drawing table and came up with this. I had the orange drum from a previous vac system along with the motors. I spent 150.00 at Lowes on the piping, filters and odds and ends.
I purchased a Hefty plastic trash can, first try, for the collection container, when I turned it on, this thing sucked the sides in on the can, with no load on the suction side. It fell over.
Next, I bought a 30 gal. galv. metal trash can. It held up fine until I put a partial load on the vac. Then it sucked the sides in and they stayed that way when the vac was turned off.
I went with the orange steel drum on the next try. duh
I had given it away and had to ask for it's return. Sorry about that Bob:foot:.I thought the trash cans would work. :jerkit:
I designed this vac with the suction pipe down thru the middle so the filters would be above the suction and at the center of the air flow. The plastic container attachd to the bottom of the 3 inch intake pipe was added to
disperse the incoming grindings.
An added feature that was not foreseen; the plastic baffle aquires a charge when the unit is in use, causing the metal grindings to adhear to the sides of the baffle which helps to keep the filters cleaner, longer.
This setup moves a huge amount of air. You would not want to let a child stick their hand in the suction side. After three weeks of grinding the filters were still almost clean. { The pics of the filters are after three weeks use.]
These motors cost around 5o.oo. With some modifications I think you could build it for under 200.00.
Fred
There are more pics on my web site. Pages; 7 and 8 if you want more angles.
In need of a more powerfull vacum for the knife shop; I spent a couple of hours at the drawing table and came up with this. I had the orange drum from a previous vac system along with the motors. I spent 150.00 at Lowes on the piping, filters and odds and ends.
I purchased a Hefty plastic trash can, first try, for the collection container, when I turned it on, this thing sucked the sides in on the can, with no load on the suction side. It fell over.
Next, I bought a 30 gal. galv. metal trash can. It held up fine until I put a partial load on the vac. Then it sucked the sides in and they stayed that way when the vac was turned off.
I went with the orange steel drum on the next try. duh
I had given it away and had to ask for it's return. Sorry about that Bob:foot:.I thought the trash cans would work. :jerkit:I designed this vac with the suction pipe down thru the middle so the filters would be above the suction and at the center of the air flow. The plastic container attachd to the bottom of the 3 inch intake pipe was added to
disperse the incoming grindings.
An added feature that was not foreseen; the plastic baffle aquires a charge when the unit is in use, causing the metal grindings to adhear to the sides of the baffle which helps to keep the filters cleaner, longer.
This setup moves a huge amount of air. You would not want to let a child stick their hand in the suction side. After three weeks of grinding the filters were still almost clean. { The pics of the filters are after three weeks use.]
These motors cost around 5o.oo. With some modifications I think you could build it for under 200.00.
Fred
There are more pics on my web site. Pages; 7 and 8 if you want more angles.
