final: machines
This week I made a motorized version of the creepy cutter prototype from last week. Now that some design questions were answered, I switched from cheap plywood to more precise HDPE. I used the .cad language to tune in a snap fit and then apply it across the body. There are still a lot of kinks to work out, but I'm encouraged by the first cut of a non-straight shape.
| Item | Q | $/ | $ |
| HDPE, 1/2" | 24"x18" | $29.11 | $29.11 |
| White Delrin Acetal Resin Sheet 1/8" Thick | 2"x12" | $3.67 | $3.76 |
| Jameco 42BYGH404-R Stepper | 1 | $19.95 | $19.95 |
| 939MG Metal Gear Servo | 2 | $4.37 | $8.74 |
| Miniature 12L14 Drive Steel Shaft 1/4" OD, 4" Length | 2 | $3.53 | $7.06 |
| Steel Ball Bearing Flanged Open for 1/4" Shaft Dia, 11/16" OD, 5/16" | 4 | $4.86 | $19.44 |
| Timing Belt Pulleys | 2 | $9.11 | $18.22 |
| Timing Belt | 1 | $1.33 | $1.33 |
| Neoprene Idler Roller, 1-1/4" Dia X 1/4" W, 1/4" Bore ID | 2 | $16.30 | $32.60 |
| OLFA 45mm Straight Edge Rotary Blade | 1 | $16.47/5 | $3.29 |
| .25" shaft collar | 1 | $0.61 | $0.61 |
| Silicon O-ring | 2 | $7.54/10 | $1.51 |
| Total | $145.62 |
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