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Is there some reason you are not using the built in analog out on the 7I96S for the VFD?
 

@Fabian,

Thank you for nice illustration. This indeed will not work.
Good you have seen the Frego paper is not suitable for our work!

For the new paper, i managed to code Equatation 39.  
However Equatation 40, i dont understand the first greek character, and the name of this character.

@Automata,

Currently there is no filleting algo active in the source.
Latest update was to test scurve by Julian.
Also G93,94,95 work now.

Next to do is add filletizing algo. Should be nice if we can directly add a 3d clothoid.

Sorry I wasn't clear.

I'm looking for 7i96+7i85 firmware.

As of a year ago, see "Install Advice (HOME_USE_INDEX with stepper using an encoder)", the default firmware didn't supply the stepgen index-enable pin.

I need firmware that supports HOME_USE_INDEX and a PWM pin for a VFD.

When you home the machine Linuxcnc uses the Forward kinematics to calculate the Axis positions (ie the values you see in the DRO of the gui) and from there on it uses the Inverse kinematic to calculate the joint (ie motor) positions after homing.
If your machine is moving the correct distances when you issue say G0 or G1 commands then you should be fine.


Don't forget that you need to run 'halcompile --install ...' again after making changes.

Hi I try to invert the enable logic on my mesa 7i96s without luck.# --- MACHINE-IS-ENABLED ---setp hm2_7i96s.0.ssr.invert.00 truenet machine-is-enabled => hm2_7i96s.0.ssr.00.out-00
 
But the signal is still not inverted. Any help on this?

my connection is
5v ->   ena+
ena- ->  out+(mesa)
out- -> gnd

now it is when it is enabled the driver is disabled

Thanks Aciera!

I went through the process described and tweaked around a little and I think I got it to work.

Now I'll admit that I'm having a bit of a hard time to wrap my head around exactly what the inverse transformation is used for. I think I got it right but even when I try to deliberately sabotage the inverse formula I can't see any errors or different behavior in AXIS.

I guess what I'm asking is if there are any simple way of testing that I got the inverse formula right?

Hi everyone,
I know this question has come up before, but are there any current plans for an EtherCAT version of a Mesa Card?In my opinion, such a card would be a fantastic addition, especially for setups involving encoders or more complex configurations like Smart Serial connections.

For those retrofitting CNCs, the benefits would be substantial. For example, if you purchase a new spindle servo with EtherCAT, you could simply add a Mesa EtherCAT card and consolidate everything into a single communication line.

The challenge right now is the lack of high-quality, affordable EtherCAT options. Most available solutions are either industrial-grade (and prohibitively expensive) or limited in functionality. As a reference, even used single encoder cards from Beckhoff cost around 100€ or more.

It feels like there’s a real opportunity here, particularly for encoder cards. Personally, I’d love to have the option to integrate linear encoders into my axes with ethercad. And in my opinion it would future proof the mesa cards.

Just wanted to share my thoughts—what do others think PCW?

To give an answer, i just tested on my machine. I think the probe tripped error is momentary, to avoid a bad crash, and stop movement. Just cancel and ignore that message and continue.
On my machine it worked to release from toolsetter while probe tripped

G91 G38.4 Z2 F50
G0 G90 G53 Z0

 

You're not using a real time kernel, not sure if that matters for a sim, what does uname -a return?

Preview mode only shows you what the screen will look like, nothing functions in preview mode because no code is running.

index = int(parent.sender().property('index'))
TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'

Tells me that the value for index is not there.

Did you watch the videos?





JT

I'm not sure what makes you say that. The table you posted shows that 38.2 probes toward the piece and 38.4 probes away from the piece.

Also, I've implemented this enough that I can get it to sometimes work (~1 in 10 tries) because the "Probe tripped" error that I mentioned doesn't always occur.

7I85 or 7I85S?

Not sure what you mean by index enable.
(all configurations with encoders have an index enable pin)

 Edit: I looked back and you are using step/dir index and a 7I85
(even though the firmware you are using is for a 7I85S)

As far as a PWM output goes, it probably belongs on a free 7I96S
STEP/DIR output, Is that OK?

 This means two PWMgens on the 7I96S (PWMgen 0 for the built in analog and
PWMgen 1 for the PWM on the step/dir pins)
 

sudo mesaflash --device 5i25 --dbname1 7i76 --dbname2 7i74 --readhmid

Yes. I wanted to communicate via spi only. Since I also configured it in spi mode in daisy chain config in FluidNC. Remora communicate with LinuxCNC via spi. If possible I can send spi config data to tmc via some module in LinuxCNC. Or if you modded remora-spi source to suit tmc 5160

If you are doing 3d printing have a look at the remora

github.com/scottalford75/Remora

This will display the current speed as a bar indicator and the spindle-at-speed signal as a red/green indicator to the right of it.
Example form the docs (speed 0 and spindle-at-speed True):