On Sunday 14 November 2021 23:27:16 John Dammeyer wrote: > I did some testing with the butterfly to tighten/loosen and then used > a torque wrench to loosen or tighten. The regulator from tank air > will be good enough to set the draw bar torque by the looks of it. > > Things are looking good at the moment. > John
I only have one machine with a drawbar, the G0704, and I'm using a 1/4" socket adapter with an 8 point 10mm socket in an 18 volt battery rachet porter-cable screwdriver. But I only let it rattle for about 1/2 second as that plenty tight enough for an R8. Its also tight enough I have to use a hammer on the regular end wrench to loosen it. > > -----Original Message----- > > From: andrew beck [mailto:andrewbeck0...@gmail.com] > > Sent: November-14-21 7:04 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Power Draw Bar > > > > 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 > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
