Tooling

• Lakeshore Carbide – Awesome supplier of advanced cutting tools at reasonable prices
• Tormach – Inventors of the Tormach Tooling System (TTS) and a great resource for tool holders, tooling, and information

Software

• GWizard – Speeds and feeds calculator
• Fusion360 – Free 3D CAD/CAM software from Autodesk
• Ultimaker Cura – 3D printer slicer and control software
• Cura Lulzbot Edition

Structural Extrusions

• 80/20 — The industry standard, available in inch and metric sizes
• Misumi — Wide range of metric sizes and accessories

Gears and Drivetrain Components

• Misumi — Linear rails, guides, bushings, etc.
• SDP/SI — Stock Drive Product — direct order gears, drive trains, etc.