Actually I found a post from Charles Steinkuehler saying that it isn't a 74CBTLV3861 it's a SN74CBTD3861DW which seems to add level shifting, I think the G540 is tolerant of 3.3 or 5v?
On Monday, 19 February 2018 13:26:38 UTC+11, Richard Thornton wrote: > > Thanks Chris, not sure where that PC is, the PC basically could jog > the steppers with the keyboard and that was it, I hadn't tried to > integrate anything else, from my email history I can see that when I > sent what I thought was good gcode, I just got loads of: > > Program exceeds machine minimum on axis x > Program exceeds machine minimum on axis y > Program exceeds machine minimum on axis z > Linear move on line 7 would exceed joint 0's negative limit > > So I still had a way to go, my lack of CNC knowledge was a bit of a > brick wall for me. > > I would have no problems getting machinekit running, it's which pins > on the Terasic I need to connect to the pins on the G540 and whether I > actually need DE0-Nano_DB25, it seems to have switching circuitry to > mimic more DB25 ports, like a mesa board I guess, I probably need > DE0-Nano_DB25 (I don't personally have surface mount soldering skills) > to give me more I/O for the VFD/relays/touch off plate/limit switches? > > Newbie alert! > > On 19 February 2018 at 12:24, Chris Albertson <[email protected]> > wrote: > > Does the old PC still work and can it still move the steppers? If so > you > > have a good start. Then you change ONE thing at a time. > > > > On Sun, Feb 18, 2018 at 4:11 PM, Richard Thornton > > <[email protected]> wrote: > >> > >> Hi, > >> > >> Apologies if this has been asked before. > >> > >> My computer knowledge is great, electronics knowledge is average and my > >> CAM knowledge is poor. > >> > >> I have a CNC6040 (for around 5 years it has been gathering dust and > >> spider-webs in the shed) it has the VFD and the water-cooled spindle. > >> > >> Back in the day the first thing I did with the 6040 is replace the > drivers > >> with a G540. > >> > >> I had LinuxCNC running on an old PC with a parallel port, I could move > the > >> steppers, I never actually routed anything. > >> > >> Fast forward to today and I want to get this thing running properly but > so > >> much has changed. > >> > >> I just ordered a Terasic Atlas-SoC from Mouser and it should arrive > today > >> (Initially I actually didn't realise there was a version without the > ARM SoC > >> and I ordered a DE0-Nano from Adafruit, not really cost effective for > me to > >> return it from AU to US). I also have a BBB with a Necitec Panther > cape. > >> > >> Should I use the Terasic, also I see the DE0-Nano_DB25, do I need that > >> with the G540, if I do, is it possible to have the board made up with > the > >> components installed (I was thinking of using jumper wires from the > Terasic > >> directly to a DB25)? > >> > >> Is my understanding correct, I install machinekit on the Terasic, it's > >> headless, so I install something else on to a PC with a GUI and use > this to > >> send the gcode to the Terasic? > >> > >> I'm thinking I would want a pendant attached to the Terasic, I don't > want > >> to spend more that $100 on this, is there something I can get online > that > >> will work on machinekit? > >> > >> How do I handle the spindle/VFD (HY01D523B) and pump in machinekit? > >> > >> I probably want to add a touch off late and/or limit switches how to do > >> that in machinekit? > >> > >> From my notes the G540 has the extra capacity to handle the above: > >> > >> IEC power outlet for one relay output for the spindle pump. > >> > >> 2-pole socket for the other relay output. This would just be the > switched > >> relay contacts (Unpowered). You could use this for switching the FWD > >> contacts of the VFD etc. > >> > >> Four G540 inputs bought out to a DB-9 socket. Would could then wire > these > >> to limit switches etc. > >> > >> Three G540 VFD outputs would be bought out to a DB9 plug. You could > use > >> this to control the speed of your VFD. > >> > >> 2nd parallel port cable connector for expansion at a later date. > >> > >> > >> Sorry about all the questions. > >> > >> > >> Thanks. > >> > >> > >> Richard > >> > >> > >> > >> -- > >> website: http://www.machinekit.io blog: http://blog.machinekit.io > github: > >> https://github.com/machinekit > >> --- > >> You received this message because you are subscribed to the Google > Groups > >> "Machinekit" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to [email protected]. > >> Visit this group at https://groups.google.com/group/machinekit. > >> For more options, visit https://groups.google.com/d/optout. > > > > > > > > > > -- > > > > Chris Albertson > > Redondo Beach, California > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
