Advanced Search

Thanks guys! I changed the velocity settings and DPLL from -50us to -200us,
and added acceleration to my multi_mpg.hal and now it’s running like a clock.

I’ll add a selector switch for resolution 0.1 0.01 0.001 and a switch for incremental & Continuous jog later.

For now I need to fix limit switches, I read somewhere that only 1 switch per axis was good enough because softlimits will protect against overtravel in other direction.

I think I’ll make the machine home X- Y- and Z+ and then make X,Y jog back 50% of total travel so that the table center line up roughly with spindle center line.

I was hoping @tar_san could post his files, as he indicates he got homing with external limit and origin switches working. I had thought I had homing figured out back in January, but discovered it was only working for Z index pulse homing, not external switch homing. I then had to set the project aside for six months due to a high priority consulting project, and am back on my LCNC ethercat quest again.

-- Ralph

Yes, that should work.

You can use pncconf or MesaCT to created a configuration for the 7I92.

You can use a similar daugtercard if the Benezan card is not supported. 
 

Hello,

After some research, I came to the conclusion that a 7i92t could replace a parallel port. My old computer died and I purchased a mesa card and attached it to a computer running LinuxCNC 2.9.4. I flashed the 7i92t_benezanx2d firmware following suggestions in another thread. 

I'm trying to control a very simple CNC Lathe by Taig. The signals that it requires on a parallel port are:

ESTOP - Pin 1
XDIR - Pin 2
XSTEP - Pin 3, Inverted
ZDIR - Pin 4
ZSTEP - Pin 5, Inverted
SPINDLE - Pin 16. Just ON-OFF, no speed control.

Is it possible to make this work with a 7i92t? 

I'm attaching the parport .ini and .hal that I was using.

Thank you in advance.
 

just to be clear, the stepper motors do run when using the stepconfig wizard, the question I would ask is, will the joints Y, A run in tandem from the LinuxCNC job interface? Does the application recognize the two as one joint and move them accordingly.

Yes, if  they were selected as tandem axis during configuration.