Quote Originally Posted by tcmachine402 View Post
Is the air brake something you made or did you purchase it? Do you need a brake, wont the VFD brake the motor?
Everything except for the air fittings mounting hardware, was designed & machined in my shop, all of the machine & Head Mods/parts were custom designed for these machines

You need a Brake only for tool changing on these machines, the VFD braking can only be used for stopping the spindle, the machine brake can not be used while the VFD is running the spindle, or for slowing it down