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Step 3: CNC Router Parts and Materials

Here is the list of the main components needed to build this CNC mahine:

Category Part Number Description Supplier Qty Price/ea Total
Hardware 91290A228 M5x12mm SHCS, (sold in packs of 100, 2 packs needed) McMaster 2 6.89/pack 13.78
  93070A123 M5x12mm SHCS Low Head (sold in packs of 50) McMaster 1 9.63/pack 9.63
  91290A334 M6x35mm SHCS (sold in packs of 100) McMaster 1 10.16/pack 10.16
  162075 8-32 Machine Screws with nuts lowes 1 $1.00 $1.00
  215901 3/8” Threaded Rod with nuts and washers lowes 1 $10.00 $10.00
  57870 1/4"-20 x 1.5" Bolts with nuts and washers lowes 6 $5.00 $5.00
CNC Specific Parts AC12105-LN 1/2"-10, 5 start Acme clamping shaft collar dumpsterCNC 3 $25.00 $75.00
  AC12105-TC 1/2"-10, 5 start Acme anti-backlash nut dumpsterCNC 3 $10.25 $30.75
  9889T201 Oldham coupler, 1/4" bore, clamping McMaster 3 $15.75 $47.25
  9889T204 Oldham coupler, 1/2" bore, clamping McMaster 3 $15.75 $47.25
  59985K63 Oldham Coupler Disc McMaster 3 $5.02 $15.06
  99030A704 1/2"-10, 5 start Precision Acme Screw, 6ft long McMaster 1 $57.50 $57.50
  6157K14 1/2" bore clamping shaft collar McMaster 3 $2.47 $7.41
  2938T11 1/2" bore bronze bushing w/ flange McMaster 6 $0.63 $3.78
  N/A Bosch Colt Router Mount k2CNC 1 $55.00 $55.00
  N/A Bosch Colt Hand Held Router Amazon 1 $100.00 $100.00
  N/A Linear Rails and Bearings linearmotionbearings, Ebay 1 $223.00 $223.00
Electronics G540 G540 Stepper Motor Controller Danmauch, Ebay 1 $240.00 $240.00
  G723-280-4 Gecko 280oz-in Stepper motor, dual shaft Gecko 3 $60.00 $180.00
  295929 48V 12.5A Power Supply Jameco 1 $114.95 $114.95
  15748 DB9 Male Connector, Solder Jameco 3 $0.55 $1.65
  15771 DB9 Female Connector, Solder Jameco 3 $0.55 $1.65
  15722 DB9 connector Hood Jameco 6 $0.49 $2.94
  645722 Cat 5e Cable, 100ft (only about 30ft is needed) Jameco 1 $14.95 $14.95
  611928 48V Relay Jameco 2 $4.49 $8.98
  1945268 Lever Switch Jameco 6 $1.35 $8.10
  69792 Combination Power Switch with light Lowes 1 $7.99 $7.99
  70684 Outlet Lowes 1 $0.48 $0.48
  56592 8ft 12-3 power cord Lowes 1 $10.00 $10.00
  7739 grounded(3 prong) power conector Lowes 1 $2.77 $2.77
  103392 Enclosure (12"x12"x6") Lowes 1 $35.00 $35.00
Material N/A 1x2x.065" Steel Tubing 24ft Industrial Tube and Steel or Speedymetals.com 1 $48.00 $48.00
  N/A 1x1x0.125" Steel Tube 6ft Industrial Tube and Steel or Speedymetals.com 1 $15.00 $15.00
  8975K683 Aluminum 6061, 1/4" Thick X 2-1/2" Wide X 3' Length McMaster 1 $17.88 $17.88
  8975K441 Aluminum 6061, 3/8" Thick, 6" Width, 1' Length McMaster 2 $17.72 $35.44
  1658T43 Aluminum Tube, 3/8" OD x 0.145" ID x 8ft long McMaster 1 $6.61 $6.61
       8 97  5K    713     Aluminum 6061, 1/4" Thick X 2" Wide X 3' Length McMaster 1 $17.23 $17.23
  37461 4'x8'x3/4" MDF Sheet Lowes 1 $32.00 $32.00
          Total $1568.19


I know this list is missing a few minor things that most people already have, so I didn't include them.  Most people will need to buy these parts in order to build the machine.