Change Log

  • Plate is now 5mm thick and screws lengthened accordingly
  • V-wheel bearings are now stainless steel

Photos

Bill of Materials

Part Name Description Source $/unit Qty. Subtotal
Cross-Slide Plate 5mm thick aluminum Big Blue Saw $20.00 1 $20.00
Complete V-Wheels Includes one polycarbonate wheel, two stainless steel rubber sealed ball bearings (16mm OD, 5mm ID, 5mm thick, trade name: S625-2RS), and one precision shim (10mm OD x 5mm Bore x 1mm thickness) FarmBot Shop $10.00 6 $60.00
6mm Aluminum Spacers 5mm bore, for offsetting the V-wheels from the plates OpenBuilds $0.20 4 $0.80
6mm Eccentric Spacers For adjusting the distance between the V-wheels OpenBuilds $2.00 2 $4.00
M5x30mm Screws Stainless steel type 316, 0.8 thread pitch, low-profile 3mm hex heads FarmBot Shop $0.60 6 $3.60
Cable Carrier Mounting Bracket 3D printed plastic Shapeways $13.54 1 $13.54
M5x10mm Screws Stainless steel type 316, 0.8 thread pitch, low-profile 3mm hex heads FarmBot Shop $0.40 4 $1.60
M5 Locknuts M5 stainless steel locknuts with nylon insert, 0.8mm thread pitch McMaster Carr $0.08 12 $0.96
Leadscrew Block Delrin, for the z-axis leadscrew to attach to OpenBuilds $6.95 1 $6.95
M5x16mm Screws Stainless Steel, for attaching the leadscrew block to the Cross-Slide Plate FarmBot Shop $0.48 4 $1.92
NEMA 17 Stepper Motor Dual 5mm shafts   $30.00 1 $30.00
NEMA 17 Cable 2.5m length     1  
Rotary Encoder Differential output, 200 line/rev minimum, 5mm bore   $50.00 1 $50.00
Rotary Encoder Cable 2.5m length     1  
Motor Housing Waterproof 3D printed plastic Shapeways $30.86 1 $30.86
M3x10mm Screws Stainless steel, for attaching the stepper motor to the mounting plate FarmBot Shop $0.30 4 $1.20
GT2 Pulley Aluminum, 20 tooth, 5mm bore OpenBuilds $5.50 1 $5.50
M3x5mm Setscrew Stainless steel, knurled end, two per GT2 pulley McMaster Carr $0.30 2 $0.60

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