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Main parts list
Description Specification Quan Part number Supplier
Steal gear 70 teeth, 3.500 pitch dia, 0.375 bore
 
1 U-GSS-1470 www.smallparts.com
Steal gear 35 teeth, 1.750 pitch dia, 0.375 bore
 
2 U-GSS-1435 www.smallparts.com
Rotor material 12" x 12" x 0.500" thick Delrin
 
1 U-SDE-0500 www.smallparts.com
Shafts Titanium or Stainless steel non-magnetic
threaded rod 3/8 coarse thread 12" long
3 316 threaded rod www.mcmaster.com
Magnets rotors 3/8" x 1" long Neo35 rod magnets
Request at the time of ordering that the picker uses
a gauss meter to match a set of magnets for you.
16 ND381-35 www.magnetsource.com
Magnet actuator 3/8" x 1" long Neo35 rod magnets
 
1 ND381-35 www.magnetsource.com
Magnets (helpers) 1/2" long x 3/8" wide x 1/8" thick Neo, Arc shaped
cut from a 1" x 1/2" x 1/8" rectangular magnet
2 NB15321-35 www.magnetsource.com
Bearings 1" OD with a 3/8" ID Bore
 
6    
Pillow blocks Accepting the bearings
 
6    
Nuts Stainless steel, non-magnetic. To mount all
parts to the shafts
24    
Washers Stainless steel, non-magnetic. To mount between
the parts and the nuts
24    
Other material Plexiglass or wood (no aluminun) to build a base
 
     
Note: Stainless steel all-thread bends easily. Do not over tighten nuts.
The center wheel will be 4.000 inch dia. cut from .500in thick Delrin
The (2) outer wheels will be 2.000 inch dia. cut from .500in thick Delrin