One way to approach this would be to use HAL to add a position offset to each joint. Normally, this would be set to zero. While paused, one could then have jog functions that changed those offsets. That could manually position the cutter where you wanted.
Then when you are done, use the jog functions to get back to where you started (all offsets zero). Then hit continue. Notice that no MDI functions would be used. Coolant, etc would be unchanged. You would probably want a manual coolant switch to turn off the coolant. Ken Leslie Newell wrote: > Hi Terry, > > A 'tool check' type function would be very useful but it doesn't look > like anyone is likely to have enough time to put into this in the > foreseeable future. I would like to have a go but I simply don't have > the time to invest in learning the inner workings of the trajectory planner. > > To be honest, the amount of coding needed for a 'tool check' function is > likely to be pretty similar to that needed for full movement while > paused. The difficulty is in resuming from halfway through a blended > move. Not only are you potentially half way through a line of code but > in the case of a blended corner the cutter may not even be on the > commanded tool path. > > Les > > > Terry wrote: > >> Leslie, >> >> I am not opposed to this change and if there is enough >> intrest in this then great. >> >> I think that a better feature would be a "tool check" >> Cutter is loading up(or whatever problem),you hit the >> tool check button and the machine would move to a safe location >> and go into a pause mode.Fix the problem and hit the tool check >> button again and machine would go to where it was when the button >> was pushed(or maybe the line right before it. >> It would be pretty close to what an M01 would do but >> with a move away and back. >> There is going to drawbacks for this but it might be useful. >> >> >> >> Later >> >> Terry >> >> >> >> On Mon Jun 22 4:02 , Leslie Newell <[email protected]> sent: >> >> >>> Hi Terry, >>> >>> >>>> Having a tool presetter or not,at some point in time you have to >>>> inform the control how long the next the tool is. >>>> >>> Of course. >>> >>> >>>> then you put the next tool in and >>>> touch it off, write it in the tool table in the T2 line >>>> >>> You need to manually jog to touch off the tool. It doesn't matter if you >>> need MDI or not, you still have to stop the program. Not sure why you >>> bother with manually changing the tool table though. The touch off >>> button in Axis does it for you, though it needs to be able to use MDI >>> mode to do it. >>> >>> >>>> then scroll down to T2M6 in the prog and right click and hit start from >>>> here. >>>> I think that is pretty easy. >>>> >>> Yes, but prone to errors, especially if you have a long program with a >>> number of tool changes. It is a lot easier to simply press cycle start. >>> >>> >>> >>>> Replacing broken tools goes like this for me: >>>> Groan loudly hit esc,jog out of the way,pick up >>>> what is left of the tool and throw it at >>>> the wall as hard as I can. >>>> >>> LOL. Being able to jog halfway through a job doesn't really help with >>> this situation. Unless you have superhuman reflexes you will still have >>> to back up the program to the point where the cutter failed. >>> >>> >>> However, where it is really useful is if the cutter starts loading up >>> with swarf. I regularly machine sheet plastic (acrylic engraving >>> laminate). While plunging the cutter often gets a lot of swarf wrapped >>> around it. After a couple of plunges you end up with enough tied around >>> the cutter to start rubbing and burning the surface of the work. You >>> then need to pause, lift the cutter and clear the swarf. This is a >>> production job, not hobby use. I have experienced similar problems often >>> enough on my lathe as well. >>> >>> >>> >>>> I view the developers time as super-valuable and would not >>>> like to see them spend time on this when there are other more >>>> important things on their plate. >>>> >>> My point is that being able to jog/use MDI during a manual tool change >>> should be a relatively trivial task that makes life a easier for a lot >>> of EMC users. The other day I was talking to an OEM who was trying to >>> choose between EMC and Mach. He was pretty enthusiastic about EMC until >>> I told him you can't jog during a tool change. As far as he was >>> concerned that was a show stopper and he went for Mach. >>> >>> Being able to jog during pause is not nearly as easy and would involve >>> quite a bit of work. >>> >>> Les >>> >> ---- Msg sent via CableONE.net MyMail - http://www.cableone.net >> ------------------------------------------------------------------------------ >> Are you an open source citizen? 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