Gene
You can configure Mach3 to drive anything on any output pin. It is up to
the creator of the machine and the BOB that is used.
You can dump the enable signals and hard wire them to be on all the
time. The last thing you want is for the machine to have the steppers
switched of and some axis moved.
Mach3 can drive 6 axis from the parallel port same as LCNC. It's a port
limitation.
I have replaced the parport on some Mach machines with a 5i25 board with
the right firmware used to simulate a parport. I cannot remember the
name of the pin file but I will try and look for it.
------ Original Message ------
From: "Gene Heskett" <[email protected]>
To: [email protected]
Sent: 2019-01-02 13:46:51
Subject: [Emc-users] mach3(winderz) vs LCNC bob useage diffs
Greetings all, PCW in particular;
Trying to sort a basket of rattlesnakes here. This computer has been
driving an HF micromill, thru the parport, using software stepping
since
the early 2000's, thru a variety of actual motherboards.
It seems that mach3 at least, uses pins on a std parport that somewhat
resemble a game of 52 pickup. Scrambled would be the mixed audience
description.
Whereas all the stuff I've ever used, this being a linux only site, has
driven the x axis steppers from the db25 pins 2 and 3.
But not mach3, where ack a doc I just found on cnczone:
pin1=XStep
Pin2=YEnable,
Pin3=YDir
Pin4=ZDir
Pin5=ZStep
Pin6=ZEnable
Pin7=XDir
pin8=YStep
pin9=spindle on/off relay on most bobs. Dir and speed apparently not
supported by mach3. Shakes head in disbelief.
pin10=input1
pin11=input2
pin12=input3
pin13=input4
pin14=XEnable
pin15=not used in 3 axis setup, but I've a 4 axis machine.
pin16=expand output1
pin17=expand output2
pins18-25 grounded
Funny part, from the keyboard Y works both dirs, Z works both dirs
although I had to invert the scales in the .ini file. So I am not even
50% sure that is how THIS machine is wired.
PCW: Does the 5i25 have a firmware that can drive this mess?
Or am I doomed to rewire the electronics box that came with this beast
to
make it into a std machine? In which case I'll just go get the box I
was
driving the HF toy with, its already setup to drive 4 axis's. Thats
sounding like a better option all the time, but it needs more volts,
only 28 for the 2M542's in it. Needs 40+ volts to reach the speeds a
5i25 can drive it at. Uses the same motor connector although I might
have to make pins match in the cabling. IIRC that will be a matter of
moving wires on the output terminal strip on that box. Since the
2m542's
have been totally bulletproof, that might be the best idea. That leaves
the spindle control to deal with.
Its bob is different from any I've seen before.
Even if I expand p3 usage with a 7i76?
Thanks everybody.
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>
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