External Resources

General CAD / Robotics Communities

• VEX CAD Discord – Ask CAD or VEX robotics questions, see other robots for inspiration, get constructive criticism.
• 7842 Discord
• BLRS Wiki – Covers basics and advanced CAD concepts.
• Vancouver Island Robotics Discord
• Mecha Mayhem Server
• Parts Order from Past Years – Past parts inventory and order form.
• VEX Robotics Competition Server

Planning / Reference

• Drive Speed Catalog / Calculator – VEX Gear Ratio / Linear Speed Calculator.
• Part Weights: 675C VEX Part Weights
• SMC Pneumatic Ordering – Pneumatics order sheet.

Build Guides

• Guide to Screw Joints: VEX Build Masterclass #1
• Guide to Boxing: VEX Build Masterclass #2
• Guide to Squaring: VEX Build Masterclass #3
• Alternative Squaring Method: 1 ChassisPart1
• Dyeing VEX Parts: How to Dye Plastic Parts
• Leafspring Odom Pods: 2654E Echo Explanation
• Top 10 3rd Party VEX Legal Parts

CAD Software

• Nesting Software “Nest and Cut”
• Onshape Education Sign-Up

Code / Programming

• EZ Template Support Server
• LemLib Template Support Server
• VEX Robotics Competition Software Channel
• Team Echo Resources Playlist

PROS

• Installation Guide
• API Reference

PID Control

• Basic PID
• Preventing Integral Windup
• George Gillard PID Docs

Odometry

• PurdueSIGbots Odometry Wiki
• Polar & Cartesian Coordinates

Pure Pursuit

• Basic Pure Pursuit Guide
• Robotics ISE Pure Pursuit Project
• Adaptive Pure Pursuit Paper

Boomerang Controller

• Boomerang Guide

Engineering Notebook

• Engineering Notebook Rubric – REC Library
• Notebookers Discord Server
• Decision Matrix Guide
• Notebook Database
• Beginner’s Guide to Notebook
• New Guide to Judging 2025 PDF – REC Library