CNC Conversion Parts List
Aluminum Stock:
1.25 x 3.5 x .625 -stopblocks
.750 dia. x 5.5 rod - motor couplings
2.5 x 2.5 x .375 (2) - x and y axis motor mounts
4.0 x 3.0 x .375 - z axis motor mount
1.0 x 2.5 x 1.700 - y axis spacer
5.750 x 4.0 x .500 - z axis base
3.750 x 2.0 x .500 - z spacer
3.750 x 1.5 x .500 -  z axis ballscrew base mount
3.0 x 3.0 x .375 - optional z axis supports
2.5 x .500  rod (8) x and y motor mounts
1.375 x .500  rod (4) - z motor mount
1.360 x 3.225 x .500 - z axis inner block

Steel Stock:
2.500 dia. x 2.0 - Z axis mounts


Stock Source - Online Metal Supply or Speedy Metals

Hardware:
6-32x.75 (8) Socket Head Cap Screw  MSC #: 05506076 (1pkg=100pcs)
8-32x.250 (8) Socket Set Screws  MSC #: 67657221 (1pkg=25pcs)
10-32x.75 (12) Socket Head Cap Screw  MSC #: 05498076 (1pkg=100pcs)
1/4-20x.75 (8) Socket Head Cap Screw  MSC #: 88546668 (1pkg=13pcs)
1/4-20x1.0 (13) Socket Head Cap Screw  MSC #: 88546676 (1pkg=13pcs)
1/4-20x1.75 (3) Socket Head Cap Screw  MSC #: 88546700 (1pkg=13pcs)
1/4-20x.750 (12) Flat Head Socket Cap Screw  MSC #: 88547898 (1pkg=13pcs)
5/16-18x1.250 (2) Flat Head Socket Cap Screw  MSC #: 88547864 (1pkg=13pcs)
5/16-24x1.0 Socket Head Cap Screw  MSC #: 56549090  (1pkg=25pcs)
3/8-24 Hex Jam Nuts (4)  MSC #: 67479444 (1pkg=100pcs)
1/4-20x.250 (2) Socket Set Screws

Hardware source - MscDirect.com , McMaster-Carr or your local Hardware Store.
Check out BoltDepot.com - you can order hardware by the piece or in bulk.

Components:
Thrust Bearings from Mscdirect.com.
    03548591 3/8 X 11/16 X 9/32 SET THRUST BALL BEARING (2 sets)
The X-Axis uses the stock bearings.
For the Z-Axis, I used thrust bearings and needle flats from Mscdirect.com.
    03380961 1.250X1.938X0.078 THRUST CAGE-NEEDLE ASSEMB
    03381142 1.250X1.937X0.032 THRUST WASHER-NEEDLE-FLAT
    03380045 1.250X2.344X0.625 THRUST-BALL-BANDED MED or # S9912Y-TB125234 SDP/SI
and Metal timing Pulleys and belt from Stock Drive Products and Sterling Instrument.
    A 6A 3-16DF03708 .200 (XL) Pitch, 16 Teeth, Aluminum Alloy Timing Pulley
    A 6A 3-32DF03712 .200 (XL) Pitch, 32 Teeth, Aluminum Alloy Timing Pulley
    A 6B 3-060037 .200" (XL) Pitch, 60 Teeth, 3/8" Wide, Urethane Belt
Note: Alternate source for timing pulleys is Econobelt.com, an outlet for SDP-SI.
   16T XL pulley #QPEXLA37016F08
   32T XL pulley #QPMXLA37032F08 or #QPEXLA37032F10 or #QPEXLA37032F12
  

Ballscrew (43 inches) part# 59321
Ballnuts (3) part# 19193
Oldham Style Zero Backlash Motor Couplers
McMaster Carr part #'s 59985K2 (2 ea.) @ 1/4 bore and (2 ea.) @ 5/16 bore, 59985K62 (2 ea.)
15/16-16 tap  Note: If you can cut internal threads on a lathe you won't need the tap.
Stepper Motors, Drivers, Power Supply and Breakout Board
  or G540 3 or 4 axis package with 381 oz/in motors.
DB9 Solder Connector - Female (6-3 axis,8-4 axis)
DB9 Solder Connector - Male (6-3 axis,8-4 axis)
DB9 / HD15 Plastic Hood (9-3 axis, 12-4 axis)
   or use 5 pin XLR connectors from Probotix instead of DB9's
Shielded Motor Cable- einsteincableco on Ebay, or Probotix or Keling
E-stop Switch -  Keling or Probotix
Parallel cable -  Keling
Limit/Home switches - Probotix or All Electronics
Relays - Allied Electronics or Davis Instruments
Cable Covers/split loom tubing - 24 to 32 feet - Cablestiesandmore or All Electronics
Case to mount electronics (user preference) A bare PC Case is common
Computer (user preference)
Mach3 - 6-Axis Controller for Windows XP and 2000


If I missed anything, please let me know Here!

© 2007 Daniel E. Kemp

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