CNC Torch Table/Bill of Materials
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prototype 1 parts
File:BOM Alpha 3.xls Thread Chart
| Item | Description | Amount | Cost per item | Total per Machine | Total Cost | Further Info | Purpose | Acquired? |
| Computer with parallel port | Total computer system | 1 | $300 | $300.00 | $300.00 | http://www.linuxcnc.org/ | To run Linux cnc | yes, IBM Laptop |
| Xylotex 4 Axis Drive Box | with 4 stepper 425 oz.in. Motors and Cables | 1 | $460.00 | $460.00 | $460.00 | Xylotex Stepper and controller | To provide motion control and movement precision | Yes |
| PowerPlasma 50 Plasma Torch | Pilot Arc 50 Amps | 1 | $699.99 | $699.99 | $699.99 | Everlast | To provide the cutting torch for the cnc torch table | no |
| Bearing R6-2RS 3/8"x7/8"x9/3\" Sealed | 10 pack | 8 | $14.95 | $11.96 | $14.95 | VXB Part Number: Kit711 | For preventing the carrage from jumping the track | no |
| V-Groove Bearings 3/8 inch | single pack | 12 | $9.95 | $119.40 | $119.40 | VXB V-Groove bearings Part number: Kit8407 | To provide low friction linear motion | no |
| 3/8 inch Hard Fiber Washers | Pack of 100 | 40 | $2.50 | $1.00 | $2.50 | McMaster Part Number: 95601A330 | Holding bearings | no |
| Hot rolled steel 3"x1/8" plate | 10.0 Ft. | 5.32 ft | $12.70 | $6.76 | $12.70 | Metalsdepot | To provide material for motor mounts | no |
| Hot rolled steel 1"x1" square tubes 16 gauge | 24ft for $23.28 | 41.83 ft | $23.28 | $40.58 | $46.56 | Metalsdepot | To provide structural support | no |
| Gear Rack (1/2” sq. x 72” 20 DP 20 Deg) | 6 feet per rack | 26.83 ft | $24.80 | $110.91 | $124.00 | Standard Steel Specialty Part Number: 200011 | rack for gear to ride on | no |
| 3 x 1/8 inch cold rolled Plate | 6.0 Ft. | 32.33 ft | $17.28 | $93.12 | $103.68 | Metalsdepot | To provide material to make rails | no |
| 3/8 inch threaded rod, Overall Length 36" | Each | 11.43 ft | $1.94 | $7.39 | $7.76 | McMaster Part Number: 98837A031 | for connecting the top and bottom carage | no |
| 3/8 inch nuts | Pack of 100 | 112 | $4.20 | $4.70 | $8.40 | Part Number: 90473A031 | For locking threaded rod in place | no |
| 3/8 inch washers | Pack of 140 | 112 | $3.23 | $2.58 | $6.46 | Part Number: 90126A031 | For locking nuts and for spacers | no |
| Steel 20 Deg Pressure Angle Spur Gear 20 Pitch, 20 Teeth, 1" Pitch Dia, 1/2" Bore | Each | 4 | $15.37 | $61.48 | $61.48 | McMaster Part Number: 5172T12 | Attaches to stepper motors and interfaces with gear rack | no |
| sleeve bearing | Each | 4 | $1.34 | $5.36 | $5.36 | McMaster Part Number: 6391K143 | to connect between the stepper motor and the gear, will also add a bit of adjustable length | no |
| 10-32 set screw 7/16" | per Pack of 100 | 4 | $5.44 | $0.22 | $5.44 | Part Number: 92311A428 | Set screw for attaching spur gear, sleeve bearing to stepper shaft | no |
| Zinc-Pltd Stl Pan Head Phillips Machine Screw 10-32 Thread, 1-3/4" Length | Pack of 100 | 8 | $8.45 | $0.68 | $8.45 | McMaster Part Number: 90272A837 | Connects the mount plate arms to the carrage | no |
| Zinc-Pltd Stl Pan Head Phillips Machine Screw 10-32 Thread, 2-1/2" Length | Pack of 100 | 48 | $6.58 | $3.16 | $6.58 | McMaster Part Number: 90272A840 | For connecting the rail, rack, spacer and c channel | no |
| Zinc-Pltd Stl Pan Head Phillips Machine Screw 10-32 Thread, 3/4" Length | Pack of 100 | 24 | $5.11 | $1.23 | $5.11 | McMaster Part Number: 90272A831 | For mounting the stepper motor to the mount plate | no |
| Zinc-Plated Steel Machine Screw Hex Nut 10-32 Thread Size, 3/8" Width, 1/8" Height | Packs of 100 | 80 | $1.55 | $1.24 | $1.55 | McMaster Part Number: 90480A195 | For locking the mount plate swing tightness, tightening the rack and locking the stepper motor in place | no |
| Nylon 6/6 General Purpose Flat Washer Off-White, No. 10 Screw Sz, .44" OD,.02"-.04" Thk | per Pack of 100 | 32 | $3.83 | $1.23 | $3.83 | Part Number: 90295A120 | allows the motor to swing freely | no |
| stepper spring | pack of 6 | 4 | $10.00 | $6.67 | $10.00 | McMaster Part Number: 3114T79 | Prevents stepper motor shaft from crunching | no |
| Multipurpose White Lithium Grease 10.25-Ounce Net Weight Aerosol | single pack | 1 | $5.62 | $5.62 | $5.62 | McMaster Part Number: 1380K29 | For greasing rails, bearings, gears, rack, etc… | no |
| Bright Finish High-Speed Stl Spiral Point Tap 10-32, H2 Pitch Diameter, 2 Flute | single pack | 1 | $5.26 | $5.26 | $5.26 | Part Number: 2523A469 | For tapping the 10 gauge threaded hole in the brass bushing and the steel bearing | no |
| 10 gauge drill bit | single pack | 1 | $1.74 | $1.74 | $1.74 | McMaster Part Number: 2930A21 | For drilling holes in rail, stepper plate, stepper plate swing | no |
| Gen Purp Black Oxide HSS Jobbers' Drill Bit 3/8", 5" L Overall, 3.1" Drill Depth, 118 Deg Point | single pack | 1 | $4.46 | $4.46 | $4.46 | Part Number: 2931A34 | For drilling holes in rail for threaded rod | no |
| Gen Purpose Uncoated HSS Jobbers' Drill Bit Wire GA 18, 3-1/4" Oal, 1.9" Drill Depth, 118Deg Point | single pack | 1 | $1.52 | $1.52 | $1.52 | Part Number: 30585A29 | making the hole for the 10 gauge tap. It has to be slightly smaller than 10 gauge because we need to cut threading into it. | no |
| Military Spec Cadmium-Pltd Steel Flat Washer No. 10 Screw Sz, .44" OD, .03"-.07" Thk, MS27183-8 | Pack of 100 | 1 | $1.94 | $1.94 | $1.94 | McMasters Part Number: 98032A469 | Small enough to fit on the rack, big enough to do some good. General purpose metal washers for 10 gauge screws. | no |
| Total per machine | $1,960.19 | |||||||
| Total Cost | $2,034.74 |
See Also
BOM for the new CNC_Torch_Table_2/Bill_of_Materials
