2018 Shocker MINDSTORMS Challenge
MOMS (Multiple Opportunities for Multiple Sensors)
Apprentice Mission (Beginner and Beginner II Teams)
Description:
The MOMS course can be completed in many ways using multiple sensors (light, color, touch, ultrasonic), or even by counting rotations. You choose the way to follow the path, climb the bridge, and find the yellow squares, without touching walls!
Bill of Materials:
| Description | Quantity | Availability | Estimated Unit Cost |
Estimated Total Cost |
| ¾ “ black double sided Velcro (96215 Hook and Loop Cable Strap) |
1 | Harbor Freight | $6.99 | $6.99 |
| Gorrilla Wood Glue 40 oz (94731) | 1 | Harbor Freight | $7.99 | $7.99 |
| 5.0mm 4x8 utility PR1S (sometimes 5.2mm) quarter inch plywood | 1 | Lowe's | $13.97 | $13.97 |
| Rustoleum Sunburst Yellow Gloss (98715 12-oz) |
2 | Lowe's | $3.76 | $7.52 |
| Rustoleum Hunter Green (98653 12-oz) |
2 | Lowe's | $3.76 | $7.52 |
| Rustoleum Sunburst Flat Black (99045 12-oz) |
1 | Lowe's | $3.76 | $3.76 |
| 1 1/8” x ¼” x 8' screen strips (5996 Pne Latt 268 1 1/8 x ¼) |
1 | Lowe's | $3.46 | $3.46 |
| 1 x 6 x 6' White Pine (950 1x6x6 Top Choice #2 WHTWD) |
1 | Lowe's | $2.68 | $2.68 |
| 1x2x8 Furring Strip (4511 1x2x8 Premium Furring Str) |
5 | Lowe's | $0.98 | $4.90 |
| 5/16” staples | On-hand | |||
| Total | $58.79 |
Scoring:
| Task | Points |
| Robot starts touching the yellow road where yellow path meets edge of course | |
| Any part of robot passes the corner (Checkpoint 1) | 100 |
| Any part of robot touches bottom of up ramp (Checkpoint 2) | 100 |
| Any part of robot passes corner on top of bridge (Checkpoint 3) | 100 |
| Any part of robot exits the down ramp (Checkpoint 4) | 100 |
| Any part of robot passes Checkpoint 5 | 100 |
| Any part of robot touches the yellow area in front of a wall |
100 |
| Deduct 75 points if robot touches wall | -75 |
| Any part of the robot touches the second (different) yellow area in front of a wall |
100 |
| Deduct 75 points if robot touches second wall | -75 |
| Any part of the robot touches the third (different) yellow area in front of a wall |
100 |
| Deduct 75 points if robot touches third wall | -75 |
| Any part of robot touches the yellow finish area | 200 |
| Total Possible | 1000 |
Maximum time limit for an official run is 3 minutes. The run will end at 3 minutes and teams will receive the score earned up to that time.
Build Instructions
- Cut the plywood paneling to 48.00” length.
- From the remaining plywood, cut two 8.00” wide pieces for the ramps. One approximately 6.50” long and one approximately 8.50” long. Both of these will trimmed down later to a closer fit.
- From the remaining plywood, cut the platform surface 12.00” by 16.00”. Trim as required for the 8.00” pathway.
- Cut the 1 1/8” lattice strips to length as needed for support under Velcro for staple
length:
- 6.00” = 3 pcs
- 8.00” = 3 pcs
- Cut the 1 x 6 pine into lengths for walls (two different heights) as noted in the
drawing:
- 5.50” = 3 pcs
- 7.50” = 3 pcs
- Cut the 1 x 2 furr strips into lengths as noted in the drawing:
- 46.50” = 4 pcs
- 45.00” = 1 pcs
- 18.25” = 1 pcs
- 25.25” = 1 pcs
- 17.25” = 2 pcs (ramp)
- 24.00” = 1 pcs (ramp)
- 16.00” = 1 pcs (ramp)
- 6.50” = 3 pcs (ramp)
- Cut the 1 x 2 furr strips into triangles with 3” legs for support of the walls (18 pcs).
- Trim the furr strips for the ramps in matched pairs.
- Attach the furr strips to the platform surface using wood glue and nails.
- Trim the plywood ramp pieces for the best fit and smooth transition. Attach to the furr strips using wood glue and nails.
- Attach the 6.50” furr strips to the underside of the ramps and platform using nails.
- Attach the furr strips to the bottom of the course as shown in the drawing using wood glue and nails.
- Attach the lattice strips to the underside of the base using wood glue in the approximate locations shown where the Velcro is to be placed. Clamp or weight the pieces as would be appropriate to maintain proper alignment and minimal gap. Allow sufficient dry time before further working.
- Attach the triangles to the bottom of the walls (2 ea).
- Paint the base with green paint. Apply two coats with sufficient drying time between applications.
- Paint the base along the centerline of the path with black paint. Apply two coats with sufficient drying time between applications.
- Paint the walls with black paint. Apply two coats with sufficient drying time between applications.
- Mask the base to leave exposed the finish area, the zones in front of the walls, and the pathway.
- Mask the centerline of the pathway.
- Paint the exposed areas with yellow paint. Apply two coats with sufficient drying time between applications.
- Cut Velcro into pieces for the bottom of the walls.
- 5.50” = 6 pcs
- Cut Velcro into pieces for the surface of the course:
- 2.00” = 12 pcs
- Staple Velcro to bottom of walls. Plastic hooks against the board (hooks up in the final configuration). Use 4 staples for each piece of Velcro.
- Staple Velcro to surface of the course in locations approximately as shown. Soft material loops against the board (hooks up in the final configuration). Use 3 staples for each 2.00” piece of Velcro.
Drawings (pdf)
Course Photos (jpg):
Checkpoints (pdf)