My selfmade buffing machine ...

 
A typical 150 Watt bench grinder motor. The safety enclosure and the grinding discs are removed
 

 
A 19 mm wrench size nut was turned out to be used as an adaptor for the DanPipe buffs.
 

 
A buff mounted. As the thread on the shaft was a bit short, a spacer is placed under the nut.
 

 
The machine equipped with two soft buffs for carnauba finish. These buffs were made to order and sit directly on the shaft, without a need for an adaptor.
 

 
A 250 Watt machine. The shaft end thread accepts angle grinder accessories with M14 mount, such as this sanding disc.