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

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

Challonge.com - Well established web-based tool for competitive events and tournament brackets. Integrated ticketing and payment via Stripe. Features here.

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.