Resources
We don’t duplicate what already exists. Our calculators focus on one gap: following a stall load through every joint and flagging which part fails first.
| Resource | Use it for | Link |
|---|---|---|
| ReCalc | Ratios, speeds, belt and chain lengths, arm/flywheel/linear sizing, motor database. Start here for sizing. | reca.lc |
| FRCDesign.org | Free Onshape CAD course and proven mechanism examples. How good mechanisms are built. | frcdesign.org |
| JVN Mechanical Design Calculator | Classic spreadsheet: speed, current, stall load, chain/belt load. | Chief Delphi |
| Deke’s FRC Calculator | Extension of JVN; drivetrain, mechanism, intake, pneumatics, chain/belt center distance. | Chief Delphi paper 3292 |
| AMB Design Spreadsheet | Mechanism ratios incl. stall voltage, drivetrain sprint optimizer, C-C calculator. | Chief Delphi paper 3485 |
| Vendor load charts | Gearbox stage ratings (VersaPlanetary, MAXPlanetary, UltraPlanetary), belt and chain ratings. | WCP, REV, VEX, AndyMark |
Rule of thumb from the community: design mechanisms to run around 25 A so you have headroom under a 40 A breaker.