Making a Magnetic Tumbler: Parts List

Here is a list of the parts required to make a magnetic tumbler and some of the suppliers that I have used.

*NOTE: since the list of suppliers was compiled, EBAY has become the BEST and CHEAPEST source for the neodymium magnets. Most everything else can be purchased on ebay for less than the suppliers listed here. Shop wisely!

Click HERE for a printable version of the parts list

Quantity Description Supplier Approx. Price ea Price
         
4 1.0 Inch (or larger) Diameter, 0.50" (or larger) thick, 30 (or more) MGO, Neodymium-Iron-Boron Magnets Ebay $10-20 $40-80
1

Aluminum Sanding disc head, 1.0" smooth bore, Part number: AH430 8x1 Alum head w/set screw
(or any 8" disc that will fit the shaft of your motor)

Covington Engineering'
Ebay
$40 $40
1 1.5" long, 1.00" O.D., 5/8" I.D. Bronze Bushing
(To fit the 1" hole in the sanding disc onto a 5/8" shaft motor)
State Industrial
602-275-0990
or
Your local Industrial Supply
$10 $10
1 8" Diameter, 1/2" thick particleboard disc with 4 holes for magnets.  You may have to cut this yourself if the store does not carry pre-cut discs. Local Hardware Store $5 $5
1 Box Fan, 5" or so, 115 VAC, if your motor requires cooling Jameco, Fry's, Computer store $15 $15
1 Fan Guard for above fan Jameco, Fry's, Computer store    
1 1/3 HP, 1735 RPM NEMA 56 Base 110 VAC Electric Motor with 5/8" shaft . OR, electric motor of your choice Covington Engineering
909-793-6636
Ebay
$50-$160 $50-160
  Wood for Cabinet hardware store $40 $40
1 6" x 4" Plastic or Aluminum sheet for switch plate hardware store $5 $5
1 Single-pole, single throw 120v switch hardware store $5 $5
1 Panel mount fuse holder with 15A 120v fuse radio shack $5 $5
1 3 Prong, heavy duty grounded power cord radio shack $5 $5
4 Rubber feet for cabinet hardware store $5 $5
1 8" by 10" air-conditioning grille hardware store $5 $5
4 1/4-20 bolts, 1.5" long hardware store $5 $5
4 1/8" Brass screws and nuts hardware store $5 $5
4 Small wood screws to attach switch plate hardware store $5 $5
4 1/8" diameter x 2" long machine screws with nuts and lockwashers to attach fan and fan guard to cabinet hardware store $5 $5
1 12" x 12" x 1/4" Plexiglas sheet hardware store $15 $15
box Box of 1.5" long drywall screws for box asembly hardware store $5 $5
few feet 14 guage wire for motor and  fan hookup hardware store $5 $5
box Box of assorted crimp-on wire connectors radio shack $5 $5
pack Pack of heat shrink tubing for wires radio shack $5 $5
  Wood glue, epoxy, caulking, paint of your choice hardware store $20 $20

Total: $305-$455