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Hehe.
I know some people using cheap chinese probes (round about 60 Euro) with good accuracy. Will try one by myself for the next machine.

So. It doesnt have to be that complex

In fact I will update easyprobe because I will have an ER32 spindle at the machine. So I will add some stuff for users who do not have ATC.

www.hitachi-iesa.com/sites/default/files...struction_NT325X.pdf Its a WJ200-022SE

Well, I had such an external 10v source before. It worked with both Hitachi and Chinese VFD. The voltage now is correct too, if LCNC gives it out to the Inverter.

What I want to mention again - just my opinion - the error seems to be in Linuxcnc - FWD and Speed signals are not sent out from LCNC just in MDI/Manual mode. My logic says - if the VFD works fine out of a file, what could be a failure in the inverter? I think theres sth wrong in the outputs of LCNC/Probe Basic. Maybe I'm wrong.

In fact, I did look at Easyprobe yesterday, thinking of upgrading to it -- but decided that with the primitive probing hardware I have on hand, there wasn't much point.

The firmware doesn't care about the host CPU
2.9.1 is pretty old (about 1.5 years)

Not sure if 2.9.1 supports PWM dither (V1 PWMgen)
as dither was added in Oct 2023 and 2.9.1 was released
in Nov 2023.

Options:

Update LinuxCNC to current (2.9.4) or use the firmware with V0 PWMgen

 

Ahhhh. Misread it. Sorry, we are also pyvcp.

Have a look at our easyprobe.
You find it at github (hausen8/easyprobe)

Julian

I have a small pyvcp panel that I've used for a number of years.  I can't remember what I started with -- probably someone else's work.  It does most of what I need, but lately I've thought of a couple of things that would be handy that I should add.  But they involve calling external programs, and I'd rather not have to do the M101 dance just to run a shell script.

Anyone have, or have a pointer to, a gladevcp panel that does most of what I've got already?  I'd like to start with something close and modify, rather than start from scratch.  Screenshot of my current panel attached.

paul

 

Hi,

right now I try to connect a 7i96 with (very) old Berger Lahr D500 stepper drives. The drives have internal pullups (10k) to 12V at step and dir inputs.

So I need a solution to sink the drive inputs to ground while not killing the (I assume) hex inverters on the mesa card.

Is there a way to change the inverter on the card (7i96) with one tollerates up to 12V?

The drives are obviously single ended. So the "-" step/dir output of the card is enough.

Best regards
Julian

with this firware which version of linuxcnc works. does it work on raspberry PI?
Estou a usar linuxcnc 2.9.1 e Raspberry Pi 4 8g

You can have multiple configurations for sure, and you can start the one you need at will, but not on the fly and frankly i see no need for it, you would have to change stuff mechanically first then start a config for that setup.
No restart of the PC required for running different configs.

thank you PCW I'll try it out

I'm planning on building a CNC machine (euhm, more then one actually), and one of my goals is to be able to load wildly different configurations for the same machine hardware. Both locations and directions of X, Y, Z and rotation axis may change. How easy is it to do this with LinuxCNC? For hardware, I'm probably going for an Ethernet based MESA card, maybe also into EtherCAT, but that is for later concern. Can a different configuration be loaded when LinuxCNC starts? Can this be done on the fly, or does it require a restart?

I guess it would work to make a custom startup command, that first copies one of the configurations to a default location before LinuxCNC is started, but I'm hoping for a more elegant solution.

This may sound weird. To give a better Idea of the direction I want to go into, I've added a picture of the Hommel UWG2. This is essentially a flat base plate, and depending on how bolt-on accessories  are configured, it can be used as either a horizontal or vertical milling machine, or even as a lathe. One of the accesssories is a rotary table, which can also be bolted on in various positions. Other examples of such universal machines are the Koelsch/Beichle Comined universal, Aldrin universal machine and Meyer & Burger UW1 (Both Hommel and Meyer & Burger were later sold as (bought by?) Astoba.


 

 

Rotation around which axis?
I think for a five axis machine you would need Rx Ry Rz.

Here is a PWM version 1 of 7i97t_7i74d.bin




(Version 0 PWM will work but lacks the dither option)

There is not much difference between E6021 and 6001. I usually use these modules on the codesys platform. If I have more time later, I will try to test linuxcnc, but this means it will take a long time. I will test and release a demo as much as possible.