Gears and transmission
FTC Mecanum Robot Assembly
- Bounding box
- 865.0 × 555.0 × 660.0 mm
- Engine
- Precision B-rep
- Parameters
- 41
- Published
- September 24, 2026
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The prompt
For this year’s FTC game, we need ideas for what to build on our robot. We are using a goBILDA mecanum chassis. Our robot needs to: - Pick up yellow POLLEN balls - Hold no more than 4 balls - Score balls into the HIVE - Tip the HIVE for 20 points - Put our alliance-colored NECTAR balls into FLOWERS in the last 60 seconds - Park in the LOADING ZONE at the end Pick a design to help with 1. Intake Job: Pick up POLLEN from the ground and FLOWERS. Possible design: - Spinning roller wheels - Side guides/funnels - A motor, shafts, wheels, and polycarbonate 2. Ball hopper Job: Hold up to 4 balls and move them to the scorer. Possible design: - Small box or sloped ramp - Roller or belt to move balls - Servo gate to stop balls **Important:** It must not hold more than 4 balls. 3. HIVE shooter Job: Shoot POLLEN and NECTAR into the HIVE. Possible design: - Two spinning flywheel wheels - Curved plastic hood - Feeder wheel or servo pusher - Motor, belt, pulleys, shafts, and wheels 4. HIVE dump basket **Job:** Carry balls up and dump them into the HIVE. **Possible design:** - Small bucket - Arm, lift, or slide - Motor or servo - Simple option if a shooter is too hard ### 5. FLOWER placer **Job:** Put NECTAR into the top of a FLOWER during the final 60 seconds. **Possible design:** - Small cup or bucket - Vertical slide or pivot arm - Servo to release the ball - Must lift the ball about 22 inches high ### 6. Programming and automation **Ideas to program:** - Field-centric mecanum drive - Slow driving mode - Automatic shooter speed - Ball counter - Jam-clear button - Auto park - Camera/AprilTag alignment later ## Parts we may need - goBILDA motors - Servos - Shafts and bearings - Timing belts and pulleys - Gears or chain/sprockets - Compliant or silicone wheels - U-channel and pattern plates - Polycarbonate or 3D-printed parts - Linear slides - Sensors - Webcam for AprilTags
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Length | 450 mm | 300 – 600 |
| Chassis Width | 450 mm | 300 – 600 |
| Chassis Plate Thickness | 10 mm | 5 – 20 |
| Chassis Frame Height | 60 mm | 30 – 100 |
| Wheel Diameter | 100 mm | 60 – 140 |
| Wheel Width | 30 mm | 15 – 50 |
| Electronics Tray Length | 200 mm | 100 – 350 |
| Electronics Tray Width | 150 mm | 100 – 300 |
| Electronics Tray Height | 20 mm | 10 – 40 |
| Intake Length | 380 mm | 250 – 500 |
| Intake Width | 180 mm | 100 – 300 |
| Intake Height | 160 mm | 80 – 250 |
| Intake Roller Diameter | 50 mm | 30 – 80 |
| Intake Roller Width | 140 mm | 60 – 250 |
| Intake Side Guide Thickness | 10 mm | 5 – 30 |
| Hopper Length | 260 mm | 150 – 350 |
| Hopper Width | 220 mm | 150 – 300 |
| Hopper Height | 200 mm | 100 – 300 |
| Hopper Slope Angle | 20 deg | 5 – 45 |
| Shooter Length | 280 mm | 200 – 400 |
| Shooter Width | 220 mm | 150 – 350 |
| Shooter Height | 200 mm | 100 – 300 |
| Flywheel Diameter | 90 mm | 30 – 120 |
| Flywheel Width | 30 mm | 10 – 60 |
| Shooter Angle | 25 deg | 0 – 60 |
| Dump Bucket Length | 200 mm | 100 – 300 |
| Dump Bucket Width | 200 mm | 100 – 300 |
| Dump Bucket Height | 180 mm | 80 – 250 |
| Dump Arm Length | 180 mm | 50 – 400 |
| FLOWER Placer Length | 150 mm | 80 – 250 |
| FLOWER Placer Width | 150 mm | 80 – 250 |
| FLOWER Placer Height | 600 mm | 300 – 800 |
| FLOWER Placer Cup Diameter | 100 mm | 40 – 150 |
| FLOWER Placer Cup Height | 50 mm | 20 – 100 |
| FLOWER Placer Lift Height | 560 mm | 300 – 700 |
| HIVE Tipper Length | 300 mm | 150 – 450 |
| HIVE Tipper Width | 100 mm | 50 – 200 |
| HIVE Tipper Height | 100 mm | 50 – 200 |
| Control Stack Length | 200 mm | 100 – 350 |
| Control Stack Width | 150 mm | 80 – 250 |
| Control Stack Height | 100 mm | 50 – 200 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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