Has anyone used the B/C drives on Doughty Drives site to make a more

Has anyone used the B/C drives on Doughty Drives site to make a more complex multi-axis cnc machine? They also sell a 5 axis cnc plan.
http://www.doughtydrive.com/

No.
What’s the holding torque and price?

I emailed so I can ask questions if you post them here. I’ll invite them to join us to answer for themselves.

Unfortunately, the B/C drive is very expensive. It is nearly $3,000.00 plus freight.

http://www.aliexpress.com/item/CNC-Router-Rotational-Axis-the-4th-Axis-A-axis-for-the-engraving-machine-80mm-CN728/1348277815.html

http://www.aliexpress.com/item/Fedex-Freeshipping-CNC-5th-axis-A-axis-for-CNC-router-engraver-concealed-conveyor-belt/751229013.html