There are two common types of draw bars. The ones that use a pullstud. Eg haas. Just have a tool eject button. To trigger a air cylinder and unload the tool. Otherwise it is held tight by the bevele washers
The ones that tighten a thread in toolholder with a air rachet or similar have two buttons. One to unscrew(loosen tool) One to tighten tighten tool And they have preset clutch to adjust the tightness. On Mon, 15 Nov 2021, 02:23 Matthew Herd, <herd.m...@gmail.com> wrote: > I believe (but could be wrong) that Haas machines use a single momentary > switch on the head to release the drawbar. > > Matthew Herd > > > On Nov 14, 2021, at 8:18 AM, ken.stra...@gmail.com wrote: > > > > I'm unsure of commercial machines but I use only a foot switch on my > > Tormach. That frees both hands to remove/insert the tool. > > > > -----Original Message----- > > From: John Dammeyer <jo...@autoartisans.com> > > Sent: November 14, 2021 12:59 AM > > To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> > > Subject: [Emc-users] Power Draw Bar > > > > Quick question. > > > > On commercial machines that have buttons to load or unload the tool by > > actuating the drawbar how are the buttons arranged? > > > > Are there two? One for Load and one for Unload? Are they arranged > > vertically or horizontally? > > > > If vertically does the upper one load or unload? If horizontally does > the > > one on the right load or unload? > > > > Thanks > > John > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
