8 ball ATC demonstration скачать в хорошем качестве

8 ball ATC demonstration

Here is a brief demonstration of the 8-Ball ATC that was originally designed for the TAIG CNC MILL. This is the 8th revision that includes a multitude of fixes and additions. These changes include: 1) Removable chip guard covering the rotary chain drive 2) Rotary tool-holder daisy wheel dust cover 3) New Spindle housing to accept 2"OD/1"ID rotary bearings (these bearing are twice the size of the standard Taig spindle bearings and are rated for 10,000 RPM work load. 4) Sheaves (pulleys) are now .800/2.800 in diameter delivering a top end speed at around 8500 RPM and lower end at 2850 RPM (no load) using the Makita variable speed trim router. 5) The spindle taper was changed to 20 degrees to eliminate previous problems with tool-holders sticking after drill pecking cycles. 6) A secondary flyweight locking system was added to actually "lock" the tool-holders in placed at spindle speeds above 1000 RPM. 7) Spindle Shaft was increased to 1inch in diameter to accommodate the larger spindle bearings and to provide a more rigid assembly. The top flange on the tool-holders will have to be turned smaller in diameter to keep them from catching the retention balls during tool changes (as seen in the video) and the powder coated spindle housing will likely be enameled instead to keep the paint from chipping. Because this spindle is encased in its own housing it can be used as an ATC spindle for wood routers as well. Plans are also forthcoming to create a spindle with and R-8 style shaft for other benchtop mill CNC conversion projects as well.