Re: [Emc-users] Errors when trying to start EMC2 with Mesa 7i43

2008-09-28 Thread Sebastian Kuzminsky
Richard Acosta wrote: > This 3 are samples for waath i have understand i have to do, but, still > with no luck on making EMC2 work with this card. > > I have based this on the 5120 sample config files found on EMC2 CD. > > Kirk Wallace sent me some directions, and: > 1) i have no "man hm2_7i43"

[Emc-users] Errors when trying to start EMC2 with Mesa 7i43

2008-09-28 Thread Richard Acosta
This 3 are samples for waath i have understand i have to do, but, still with no luck on making EMC2 work with this card. I have based this on the 5120 sample config files found on EMC2 CD. Kirk Wallace sent me some directions, and: 1) i have no "man hm2_7i43" on my linux (no manual found answer

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Gene Heskett
On Sunday 28 September 2008, Jon Elson wrote: >Gene Heskett wrote: >> On Sunday 28 September 2008, Jon Elson wrote: >>> But, no reversing, I assume. >> >> Ahh, emc does have as one of its m# commands, a "start reverse", and I do >> have it hooked up, not terribly useful without the encoder, but IST

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Jon Elson
Gene Heskett wrote: > On Sunday 28 September 2008, Jon Elson wrote: > >> >> But, no reversing, I assume. >> > > Ahh, emc does have as one of its m# commands, a "start reverse", and I do > have > it hooked up, not terribly useful without the encoder, but ISTR it does work, > I have it tie

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Gene Heskett
On Sunday 28 September 2008, Jon Elson wrote: >Gene Heskett wrote: >> If it wasn't for the poor PIV ratings of the schotky's(sp?), that would be >> ideal, but I don't know of any power schotky's good for that sort of >> reverse voltage. > >There are insanely fast turn-off diodes on the market. By

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Gene Heskett
On Sunday 28 September 2008, Jon Elson wrote: >Gene Heskett wrote: >> On Saturday 27 September 2008, Jon Elson wrote: >>> I have put a DPDT switch on >>> mine so I can run the motor off a servo amp. I can't get full RPM, as >>> my servo box has a 50 V power supply, but the servo amp gets me >>> co

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Jon Elson
Gene Heskett wrote: > If it wasn't for the poor PIV ratings of the schotky's(sp?), that would be > ideal, but I don't know of any power schotky's good for that sort of reverse > voltage. > > There are insanely fast turn-off diodes on the market. By trying out a few in a circuit already prove

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Jon Elson
Gene Heskett wrote: > On Saturday 27 September 2008, Jon Elson wrote: > >> I have put a DPDT switch on >> mine so I can run the motor off a servo amp. I can't get full RPM, as >> my servo box has a 50 V power supply, but the servo amp gets me >> computer-controlled variable speed and reversing.

Re: [Emc-users] Stepper drivers

2008-09-28 Thread Ian Wright
Ian, I think it's great that you would build your own driver. But to do so is not for the sake of saving money. Maybe as a learning excersize, but not to save money.>>> Thanks for the replies guys - from all the traffic I seem to have generated, I guess I may have bitten off more

Re: [Emc-users] Problem on EMC2 starting with rtai_hall.ko

2008-09-28 Thread Евгений Александрович
> your base period and those timings need adjusted to a higher number, the > computer isnt able to keep up with the speeds the configs are trying to > run. these are in the stepper_mm.ini file. > > this talks about using the latency test to set the timings. > http://wiki.linuxcnc.org/cgi-bin/emci