Each subteam discussed several options for the drive train, each choosing the approach they preferred. See team specific posts for their decision process and progress.
Building Process
Validate components
- Build prototype chassis to become familiar with Tetrix components
- FTC 329 mounted 2 motors for indirect drive
- FTC 2813 mounted 4 motors for direct drive
- Simulate game play by moving prototype chassis and drive train over various surfaces and down mock-up of ramp
- Connect to control systems to test drivability of prototype
- Analyze prototype for potential issues (movement restrictions, ease of maintenance, etc)
- Analyze 329 prototype (2 wheel indirect drive) and 2813 prototype (4 wheel direct drive) for drivability and compliance with team's design goal(s)
Design & Build Drive Train
- Identify design goals
- Determine final geometry for chassis design with manipulator sub-team
- Determine drive train configuration
- Generate shopping lists for any additional parts needed
- Identify any fabrication needs for custom parts (using aluminum and/or polycarbonate)
- Decide on chassis design with integration and manipulator sub-teams
- Rebuild chassis and drive train to reflect team's decisions
- Connect to control system to test drivability
Quality Assurance
- Validate designed drive train agains design goals and competition constraints
- Test, Analyze, Re-design or tune design as needed until final product meets design criteria
- Self-inspect using inspection checklist; making corrections as needed until "inspection ready"
Documentation
- Fully document the "as built" design with annotated drawings (label all control points!)
- Glue in team journal and add to team competition binder
- Create 3 copies of BOM, one for team journal, one for team binder, and one for judges
Prepare for Competition
- Create drive train toolkit (maintenance tools, pre-match check list, drive train binder or folder, completed self-inspection checklist)
- Go through pre-match checklist to ensure mechanical stability of drive train
We are now competition ready!