Video Description

I made a mini milling spindle again. This time it is direct driven by a small brushless motor. The ER11 spindle is now with 12mm diameter and the bearings are precision spindle bearings arranged in matched pairs. I'm not quite sure yet if this design is a good one. I think time will tell especially if the motor is appropriate for this task. For controlling the spindle I made an extra control box with power supply and brushless controller. I hope you enjoy this build. Feel free to ask your questions or let me know your suggestions in the comments! Consider supporting me on Patreon: www.patreon.com/wecandothatbetter 00:00 Making the front spindle housing 04:19 Making the back spindle housing 06:45 Finishing both housing parts 09:20 Making the rear bearing locking ring 09:54 Modifying the ER11 collet spindle 11:04 Making the preload nut 13:15 Making the labyrinth sealing spacer 15:04 Making the front spindle cover with labyrinth sealing 16:48 Making the rear spindle cover 18:36 Motor adapter 19:53 Making a motor cooling fan 21:16 Final assembly 24:21 Making the spindle control box 26:19 First test and use