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sam calisch

cba

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.








BOM
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



Files:


MAS.863 2012