OnlineTools

A number of tools have been created for robot combat builders to be able to plan for and build effective bot weapons and drivetrains. Here are some community favorites:

Mechanical

Handy for drivetrains.

Belt Length Calculator - B&B Manufacturing

Belt Center Distance Calculator - Jeremy Germita

Chain Center Distance Calculator - Jeremy Germita

Magnet Pull Force Calculator - Calculate pull force based on distance, size, and grade. By K&J Magnetics.

Motors

Electric Motor Math - Understanding the specs for PMDC (brushed) motors. By Team RoboForge, presented by Run Amok.

Also see Deriving Motor Constants for surplus PMDC motors.

Motor Speed and Pushing Power - Choose brushed or brushless motors. By Jeremy Germita

ESC Configurator for programming (reflashing) ESCs online (Chrome/Chromium-type browser expected).

Using CRSF and ELRS in Combat Robotics - get started with CRSF and update your ESCs from pulses to packets.

Weapons

Use these to find out not only how hard a spinning weapon will hit, but also whether it is compliant with maximum energy rules for the events you compete in.

Spinner Weapon Kinetic Energy Calculator - SpinCalc by Run Amok. Read the help file! Mass, MOI, spin-up estimation, etc.

Tip Speed Calculator - Jeremy Germita

Tip Speed and KE (Kinetic Energy) Calculator - Bristol Bot Builders

Control

Mixer Fixer for correcting problems with channel mixing on your transmitter. By Run Amok.

for Event Organizers

Places to post Events.

Challonge.com - Well established web-based tool for competitive events and tournament brackets. Integrated ticketing and payment via Stripe. Numerous features, free version heavily ad supported. RobotCombatEvents.com has Challonge integration to feed event results to USA national rankings.

TrueFinals.com - New site in beta for tournament brackets. Stats and dashboards, competitor list with next opponent listed, integrated check-in and call up, video overlays for match recording/streaming, all also web-based. Well-documented API and small robot combat community creating deep integration.

Rampage is a tournament bracket/management site for UK matches, featuring Bugglebots and similar match formats, streaming features and API support.

BigTimer.net - Large-display, ad supported, touch-enabled timer.