| Material List | ||||
| Item | Description | QTY | Size | Remarks |
| M1 | Wooden Dowel | 2 | 1" x 12" | Bottom structure |
| M2 | Wooden Dowel | 2 | 3/4" x 12" | Bottom structure, top assy |
| M3 | Wooden Dowel | 4 | 1/2" x 8" | Axles, drive shafts |
| M4 | Wooden Dowel | 12 | 1/4" x 2" | Rear wheel axle support |
| M5 | Styrofoam | 3 | 1' x 8" x 2" | Hull |
| M6 | Straw | 4 | 1/4" x 8" | Axle supports |
| M7 | Spool | 4 | | Wheels |
| M8 | Small electric motor | 3 | | Propulsion |
| M9 | Lego Gears | 6 | | Propulsion |
| Tools and Equipment List | ||||
| Item | Description | Use | | |
| T1 | Hot Glue Gun | Material bonding | | |
| T2 | Hotwire foam cutter | Cut out hull body | | |
| T3 | Drill | Prepare holes needed for screws | | |
| T4 | Hand saw | Cut wooden dowels | | |
| T5 | Screwdriver | Secure screws in wood | | |
| | | | | |
| Supply List | ||||
| Item | Description | QTY | Size | Remarks |
| S1 | Sandpaper | 1 | 8.5" x 11" | Material reduction/forming |
| S2 | Glue | 1 | Tube | Material bonding |
| S3 | Duct tape | 1 | Roll | Material bonding/waterproofing |
| S4 | Screws | 1 | Box | Material bonding |
| | | | | |
| Parts List | ||||
| Item | Description | QTY | Size | Remarks |
| P1 | Hull | 1 | 1' x 8" x 4" | Area cut out for arm base |
| P2 | Axle assy | 2 | 1/2" x 8" | Axle and motor are attached |
| P3 | Bottom protection | 1 | 1' x 8" x 2" | Slot cut out for rear wheel |
| P4 | Wheel | 4 | | Grooves prepared for traction |
| P5 | Support columns | 6 | 1" x 1" x 1" | |
| P6 | Rear wheel | 1 | | |
| P7 | Rear wheel axle | 1 | 1/2" x 3" | Axle and motor are attached |
Material Processing
P1: Hull
- Use ruler (T6) to measure Styrofoam (M5) to assure measurements of 1' x 8" x 2"
- Use glue (S2) to bond 2 sheets of Styrofoam (M5) together one on top of another
- Use ruler (T6) to measure interior cut out on Styrofoam (M5) with dimensions of 5” x 10” x 2”, mark with pencil
- Use hotwire foam cutter (T2) to cut out interior hole from Styrofoam (M5)
- Use hotwire foam cutter (T2) to cut out 1” x 1” x 1” hole with the edges approximately 4” from the front and 1.5” from bottom right edge of the Styrofoam (M5)
- Repeat step 5 on left edge
- Use sandpaper (S1) to smooth Styrofoam (M5)
- Use hotwire foam cutter (T2) to cut out curved section with radius and size .5” larger than that of the rear wheel (P6)
- Use hotwire foam cutter (T2) to cut out a straight 1” x 1” x 1” hole perpendicular to the bottom of the hull approximately 2” from the rear, centered on the bottom within the cut out section
P2: Axle Assy
- Use glue (S2) to secure end of dowel (M3) to the center, but not through the hole of the gear (M9)
- Use glue (S2) to secure gear on to the motor axle (M8)
- Slide straw (M6) around middle of dowel (M3)
- Repeat process 2 times for a total of 3 parts
P3: Bottom protection
- Use ruler (T6) to measure Styrofoam (M5) to assure measurements of 1’ x 8” x 2”
- Use ruler (T6) to measure portion of the Styrofoam (M5) to be removed for wheel (P4), and mark off with pencil
- Use hotwire foam cutter (T2) to cut out curved section with size .5” larger than that of the rear wheel (P6)
P4: Wheel
- Use ruler (T6) to measure 4” of wooden dowel (M3), mark with a pencil
- Use hand saw (T4) to cut wooden dowel (M3) on the pencil line
- Use clay (M9) to cover spool (M7) with clay (M9) exceeding the diameter of the spool (M7)
- Use glue (S2) to secure one end of 4” wooden dowel (M3) perpendicular to the center but not through the hole of the gear (M9)
- Use glue (S2) to secure opposite end of same 4” wooden dowel (M3) to end of spool (M7)
- Use hand saw (T4) to cut straw (M6) into a 3 inch segment
- Slide the wooden dowel (M3) into the now shortened straw (M6) until straw (M6) is in the middle
- Repeat steps 3, 4, 5, 6, and 7 for a total of 2 wheels
P5: Support Column
- Use ruler (T6) to measure 1” section of wooden dowel (M1)
- Use hand saw (T4) to cut 1” section of wooden dowel (M1)
- Repeat process 5 times for a total of 6 columns
P6: Rear wheel
- Use clay (M9) to cover spool (M7) with clay (M9) exceeding the diameter of the spool (M7)
- Repeat process
- Use ruler (T6) to measure 1” of wooden dowel (M3), mark with a pencil
- Use hand saw (T4) to cut wooden dowel (M3) on the pencil line
- Use hand saw (T4) to cut straw (M6) to a length of 0.75”
- Slide wooden dowel (M3) into the straw (M6) so that it is in the middle
- Use glue (S2) to secure one end of 1” wooden dowel (M3) perpendicular to the center hole, but not through the hole of the gear (M9)
- Use glue (S2) opposite end of same 1” wooden dowel (M3) to end of spool (M7)
- Use ruler (T6) to measure 2” of wooden dowel (M3), mark with a pencil
- Use hand saw (T4) to cut wooden dowel (M3) on the pencil line
- Use hand saw (T4) to cut straw (M6) to a length of 1.5”
- Slide dowel (M3) into straw (M6) so that it is in the middle
- Use glue (S2) to secure one end of the other 2” wooden dowel (M3) perpendicular to the center hole same gear as above
- Use glue (S2) to secure opposite end of same 2” wooden dowel (M3) to end of spool (M7)
- Use glue (S2) to attach wooden dowel (M4) centered and perpendicular to the length of the straw (M6)
- Repeat step 15 on other straw so that 2 wooden dowels (M4) are perpendicular to the straws
P7: Rear wheel axle
- Use ruler (T6) to measure 3” of wooden dowel (M3) and mark with pencil
- Use hand saw (T4) to cut wooden dowel on pencil line
- Use glue (S2) to secure end of dowel (M3) to the center, but not through the hole of the gear (M9)
- Use glue (S2) to secure gear on to the motor axle (M8)
- Slide straw (M6) around middle of dowel (M3)
Assy Procedures
1. Use glue (S2) to secure axle assy (P2) horizontally to the bottom of the hull (P1) with the terminal end of the motor placed approximately 3” from the front, and approximately 1.5” from the right edge of the hull (P1) so that the assy is lengthwise along the bottom of the hull (P1). Glue (S2) should be used on the straw portion, carefully as to not glue the wooden dowel, to secure the straw to the hull (P1). Be sure that the gear is placed so that it can spin within the hole designated on the bottom of the hull.
2. Repeat step 1 on bottom left side so that 2 axle assemblies (P2) are placed parallel to the bottom of the hull parallel to each other an equal distance apart.
3. Use glue (S2) to secure wheel (P4) perpendicular to the axle assy (P2), but parallel to the hull (P1). The gear should be placed so that it interlocks teeth with the gear protruding from the axle assy (P2). Glue (S2) should only be placed on the straw, carefully so that nothing else on the wheel is inhibited from movement.
4. Use glue (S2) to secure rear wheel axle (P7) vertically within the hole created for it on the bottom of the hull (P1) with the terminal side facing toward the top of the hull (P1)
5. Place rear wheel (P6) within the rear cut out section so that the gear on the rear wheel axle (P7) is perpendicular to the gear on the rear wheel (P6) so that the gear teeth interlock.
6. Force dowels that are secured to the straws on the rear wheel (P6) into the base of the hull (P1) so that they are attached to the base
7. Use glue (S2) to assure that rear wheel (P6) is attached to the hull (P1)
8. Use glue (S2) to attach support columns (P5) to face of bottom protection (P3), evenly spaced along the length of the bottom protection (P3), edges of the columns (P5) even with the edges of the bottom protection (P3)
9. Use glue (S2) to attach support columns (P5) to the bottom of the hull (P1) with the carved out rear section of the bottom protection (P3) to the rear of the hull (P1). The edges of the support columns should be even with the bottom edges of the hull (P1). Use hotwire foam cutter (T2) to remove any sections that impede movement of axles and wheels.
