i be honest, i am not smart enough to go into CURA - opensource software to increase step up in Z direction up to .5" and turn extruder feed off or set extruder feed to constant.
not sure how many people can do that --slicing step is variable with a maximum of 0.05 surely that is a constant in the code. Just change it! go into open GL - software engine etc. is not my level task. i fish to find some one that can do that. On Sun, Mar 11, 2018 at 1:20 PM, Ken Strauss <ken.stra...@gmail.com> wrote: > Could you not get constant extruder feed by simply ignoring what the > software > generates or by using the feed rate to generate a feed/nofeed signal? If > the > slicing step is variable with a maximum of 0.05 surely that is a constant > in > the code. Just change it! The reason for open source is that you can modify > such restrictions to suit your needs. > > > -----Original Message----- > > From: a k [mailto:pccncmach...@gmail.com] > > Sent: Sunday, March 11, 2018 12:29 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] revers tool path. > > > > hi > > i did search on google for slicing software. i try to contact open source > > slicing > > program Cura. > > i could not get hold of software designer, only sale and maybe tech > support. > > > > i could not find slicing software where head feed -extruder feed can be > set > > CONSTANT. > > second , in all slicing software that i see the max step up (z direction) > > distance > > 0.05 of inch. > > that is rigid. > > 0.05" is good for plastic but not for mig welder that i use. > > > > Yes, slicing software will be good to use , it is very close , but as > they > > right now > > i can not use them. > > if some one know slicing software where max step up in z direction can be > > set > > up to 0.4 " and i can set extruder feed constant, let me know > > > > thank you > > aram > > > > > > > > > > > > > > > > > > On Sun, Mar 11, 2018 at 8:36 AM, Gene Heskett <ghesk...@shentel.net> > > wrote: > > > > > On Sunday 11 March 2018 05:54:08 Andy Pugh wrote: > > > > > > > > On 11 Mar 2018, at 06:03, a k <pccncmach...@gmail.com> wrote: > > > > > > > > > > i want reverse tool path. > > > > > > > > No, you don't. > > > > > > > > A reversed tool path will still put the tool outside the part > > > > material. > > > > > > > > Just use a 3D printer slicer and configure your machine with a dummy > > > > extruder axis that does nothing. > > > > > > That to me, still doesn't quite get the job done. He needs to hook up > > > the extruders wire feed to the plastic feed, and some way to turn off > > > the fire when jumping across an opening in the pattern, and restarting > > > the fire when its moved across the empty opening. The fact that the > > > machine can lay down a much thicker line of metal in one pass than the > > > 3d printer can should just be a matter of programming the slicer for a > > > thicker slice. In fact it may be worthwhile in reduced "finishing" > > > work to design a new smaller "extruder like" mechanism to handle say > .015" > > > diameter wire, as that would reduce the final pass to size to a single > > > pass, possibly with EDM if its a thin walled and easily distorted > item.. > > > > > > It might even be helpfull to replace the drive motor on the "extruder" > > > with a reverseable motor so that the wire can be withdrawn far enough > > > to extinguish the arc. The rest of this I see as a hal file > > > composition exercise, hooking up SSR's to control the arc, and some > > > sort of a THC like arc starter. In fact, let the THC output control > > > the x/y feed speed as a way of laying down a consistent thickness of > > > metal. > > > > > > It would also be a good idea to have the workspace flooded with the > > > near inert CO2/Argon atmosphere. The CO2 adds carbon to the puddle, > > > making the resultant metal layer much harder than straight argon by > > > itself would. It wouldn't matter if it leaked, as long as the working > > > envelope was flooded to keep slag at bay because that would make the > > > arc restart simply a matter of fireing the SSR and extending the wire > > > until contact was made again, letting a feedhold hold the starting > > > position until the arc was started, long enough to make sure the metal > > > was being transferred. The flooding gas would ensure a clean, oxide > > > free interface, making the arc so much easier to restart you'd wonder > > > why you ever bothered trying w/o it. The initial startup might need a > > > delay after gas turnon to assure its well flooded else the weld would > > > slag over once the head had moved on, at least long enough for the > > > weld to cool. > > > > > > Or perhaps I don't fully understand the problem. Its certainly > > > something LinuxCNC can do once the slicer has created the laydown > > > paths from the 3d model. > > > > > > Aram hasn't given us any hint at how big the working envelope of the > > > 3d metal printer might have to be as that will determine the gas > > > economics. > > > In the size bottles I use, a big box can get expen$ive to flood. > > > > > > -- > > > 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) > > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > ------------------------------------------------------------ > > > ------------------ > > > 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 > > > > > ------------------------------------------------------------ > ------------------ > > 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 > > > > ------------------------------------------------------------ > ------------------ > 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 > ------------------------------------------------------------------------------ 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
