Quote Originally Posted by john-100 View Post
Hi Michael

it is still a work in progress but is a wiring diagram for the spindle
if your not using a charge pump

Attachment 435834

note- the BOB shown needs a 5V supply from a USB port

John
Looks good john I have 1 question what's the no volt release switch for ? What would that switch be used for??would I use it everytime I run the machine or just when I need to shut the spindle off like a estop