Take a look at my DIY power drawbar for the PM 940 CNC VS. I already had a Milwaukee right angle impact tool which I used for the drawbar. I can get quite a few tool changes on a single charge. There are two speeds and I only use the slow speed for now. This is my first prototype for this drawbar. It seems to be working just fine. I like it because it doesn't need an air compressor. It was fast and cheap to make. I can still use the impact tool be loosening up 2 set screws.
Rod in San Francisco
Rod in San Francisco