CNC Workshop
Practical CNC guides built from real support questions and hands-on experience. Explore spindle selection, controller compatibility, troubleshooting, upgrades, maintenance, and more from the PwnCNC team.
ER11 vs. ER20 CNC Spindles: Tool Sizes, Collets, and Real-World Limits
ER11 handles the 1/8- and 1/4-inch tools used by many CNC owners, while ER20 expands your options to common 3/8-...
110V vs. 220V CNC Spindles: Which One Should You Choose?
Choosing between a 110V and 220V CNC spindle depends on more than available power. Compare circuit requirements, spindle power, VFD...
CNC Spindle Upgrade Compatibility: What to Check Before You Buy
Planning a CNC spindle upgrade? Learn how to verify machine fit, spindle diameter, voltage, VFD communication, cables, drag-chain clearance, dust...
