On Tuesday 15 September 2020 12:22:15 Gene Heskett wrote:

> On Tuesday 15 September 2020 11:49:39 Jon Elson wrote:
> > On 09/15/2020 08:40 AM, Gene Heskett wrote:
> > > Axis X Fault
> > > Axis Z Fault
> > > Axis X Fault
> > > Axis Z Fault
> >
> > Note that a lot of drives present the fault signal when
> > disabled.  I have had to build a module to "cover" that
> > signal when not enabled so that LinuxCNC can be brought out
> > of E-stop.
> >
> > Jon
>
> I've done that with a oneshot Jon, worked for a single axis, but fails
> for 2.

Because the X scale was way high, nearly 70,000, I ordered a longer belt 
and put a bigger pulley on the motor, getting me down to the mid 40 
thousands for an inch, and it was big enough I could get a hold of it 
and force it off zero, but I was not able to force a fault with a 15 or 
20 degree turn, all I could muster. Positioning it against a chuck jaw 
and jogging into it succeeded it turning the locked down BXA tool post a 
few degrees but not in tripping it off. Stubborn thing. With the bigger 
pulley, I expect I could set the maxvel up to over 100 ipm. However, I'd 
also say a 1nm motor is a great plenty for x on a lathe this size, an 
11x56, 2nm is certifyably overkill.  Now when I got both eyes open, to 
see if I can make the hal file do as I want. Apparently I'm walking on 
new ground.

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)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>


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