In my mind, the issue is not that the gcode shouldn't ask the hardware to do things that it can't do.
The issue is that the gcode language should be powerful enough so that the hardware can do everything it can physically do. Ken ----- Original Message ----- From: "Alessandro Zummo" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <[email protected]> Sent: Tuesday, April 01, 2008 12:25 PM Subject: Re: [Emc-users] 5/6 axes double carriage gantry machine > On Tue, 01 Apr 2008 12:13:48 -0400 > John Kasunich <[EMAIL PROTECTED]> wrote: > >> The first question that comes to mind is how you are going to >> program it. Will the two heads be running semi-independently? >> Or is it making two copies of the same part? or something else? > > semi independently. they are basically smoothing the same > piece on both sides and they share a common X > >> If the heads are running independently it gets more complex. If Y1 is Y >> in the g-code, and Y2 is V, then imagine this: >> >> G0Y0V100 (move head 1 to 0mm, and head 2 to 100mm) >> G1F20Y20V200 (move head 1 to 20mm and head 2 to 200mm, at a feed rate >> of 20mm/min) >> >> The second command is asking one head to move 20mm and the other to move >> 100mm. EMC2 will move both axes such that both moves complete at the >> same time. That means its impossible for both heads to move at 20mm/min. > > right, the g code will have to be written so that it doesn't ask > the machine things that cannot be done. Given that the X will be the > same for both heads, they will just have to move on their own Y/V axis > at the same speed > > >> Once we have a better idea of what you are trying to do we can probably >> help figure things out. > > Thanks for your fast answer.. I don't think I ever got such kind > of fast support from anyone else! :) > > -- > > Best regards, > > Alessandro Zummo, > Tower Technologies - Torino, Italy > > http://www.towertech.it > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
