Created on 29 Oct 2018
Arm that draws things
Part | Cost | Quantity | Total |
Stepper Motor (small) | $36.61 | 1 | $36.61 |
For tilting the pen on and off of the paper. | |||
Pulleys | $8.98 | 1 | $8.98 |
Pulleys for tendons | |||
Foam Blocks | $11.99 | 1 | $11.99 |
Foam blocks for the base to mount the motors. | |||
Stepper motor (lg) | $36.61 | 3 | $109.83 |
stepper motors to control arm joints | |||
Raspberry pi 3 | $37.69 | 1 | $37.69 |
Raspberry pi to control arm motors | |||
Clipboard | $4.95 | 1 | $4.95 |
A clipboard to hold the paper that the arm draws on | |||
Plastic Gears | $5.49 | 4 | $21.96 |
Plastic spur gears set to create appropriate gear ratios. | |||
Wooden Dowels | $1.91 | 1 | $1.91 |
0.5 in wooden dowels that will act as the upper-arm and fore-arm | |||
Ball Bearings | $12.07 | 1 | $12.07 |
Ball bearings for the elbow and shoulder joints. | |||
Epoxy Resin | $4.67 | 2 | $9.34 |
To glue together ball-bearing joints | |||
Binder Clips | $6.99 | 1 | $6.99 |
Clips to help secure the paper to the clipboard when our arm draws. | |||
50 Popsicle Sticks | $2.99 | 1 | $2.99 |
To jerry rig support structures. | |||
String | $3.50 | 1 | $3.50 |
Act as tendons in the arm | |||
Project Totals: | 19 | $268.81 | |
Track 1 Base Budget: | $250.00 | ||
Preferred Vendor Budget Bonus: | $50.00 | ||
Remaining Budget: | $31.19 |