Works similar to the turret for the Compact 5 CNC and PC lathes. They turn one way with a ratchet pawl then back up against it.
On Friday, May 12, 2017, 6:23:10 AM MDT, Les Newell <les.new...@fastmail.co.uk> wrote:Hi Gregg, The ATC on my lathe is a turret I originally made for a Denford Orac (a small education CNC lathe). It has 6 tools on a disc with a 6 position ratchet. A motor rotates the disc forwards to select the tool then backs up onto the ratchet to hold the tool in place. There is a microswitch on the pawl so it can count tools as they go past. There is no index. LinuxCNC simply remembers the current tool position between sessions. The script is a hacked version of hal_manualtoolchange. It simply turns on the motor and counts pulses from the pawl until the correct tool is in place. It then reverses the motor to hold the tool in place. It is currently fitted on my Colchester Triumph 2000 which looks ridiculous. The whole turret fits on a standard quick change tool holder on the Colchester! It is only used for a series of decorative wooden knobs for one customer. It wouldn't handle serious metal cutting. I use two different configs on the lathe, one for normal quick-change tools and one for ATC. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
