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Hello,

I'm currently working with the probe and the toolsetter (Renishaw type).

Both work very well.

I'd like to be able to measure the tool diameter with the toolsetter.

I started looking into it and saw that this function isn't implemented. And to be honest, I don't really have the skills to do it myself.
Has anyone implemented this function?

Laurent

Hello Frank,

thank you for your Answer.
I am using FreeCAD for CAD and CAM. FreeCAD always usese the tool table to set the tool offset after changing the actual tool (M6 in the g code). So I wrote my own script for dynamic tool change, that writes the measured tool length into the tool table. FreeCAD can use it than after Tool change within the g-code.
For getting the z-level I change to any tool (M6 Tx), that starts my Script to measure the tool. After that I want to touch the plate. The program works fine until it substracts the tool length as its last step (if i would add the tool length from tool table again, i have the correct value for the hight fof my tool above my workpiece.

Perhaps you have an idea for that issue?
Many greetings from Germany, Klaus

forum.linuxcnc.org/18-computer/54369-use...mesa-ethernet-boards

Out of curiosity what model and specs do you look for in your Lenovos? How often to you come across one that's just not suitable?

Yes it is.
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Personally, i will still not use RPI for sure, until it gets to under 50$, and since that will never happen, neither will my use of them.
I just buy old Lenovo laptops at 100-200 Euro a piece, and they come with everything included, battery and touchscreen included, all 14" of it. And it has much more processing power. With 2 cores.

Yes he is, do not upgrade unless there is something you absolutely need.
If the machine is working properly, NEVER upgrade. This is not MS windows.
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I have several (roughly 10) machines using Ubuntu 8.04 and 10.04, all over 15 years old, all still working every day.

Das war die Lösung!
Jetzt ist alles wieder da.

I have successfully used PWM on 24V DC bang-bang valves with position feedback. However there is huge spool-overlap to contend with which isn't a problem in my case because I use a microcontroller and my PID-loop is easy to modify. It will never be a servo-valve but it works fine if all you need to do is hit a target-count.

There are many applications that can benefit from programmable positioning but the cost of full-blown servo-hydraulics is not justifiable.

Regards,
Craig

Dell Optiplex 960. /proc/cpuinfo
Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz

Parallel port. The md5sum test passes.

I have backed up everything.
/proc/meminfo MemTotal: 3071164 kB

Are you telling me that upgrading past 2.7.15 may not work?

I think I have identified my USB drive from dmesg

[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.4-9-rtai-686-pae
root=UUID=d6024873-2470-49d1-992d-a484c0ca8fdf ro initrd=/install/gtk/initrd.gz
lapic quiet rootdelay=5
[ 2.660091] usb usb1: Product: EHCI Host Controller
[ 2.660093] usb usb1: Manufacturer: Linux 3.4-9-rtai-686-pae ehci_hcd

Thank you. I will attempt to make the USB on my 2.7.15 Linux box.

Thank you, sir!

While I've got your attention I have another burning question, though slightly off topic.

As I mentioned I've been out of the loop for several years now. When I was last here plasmac (pre qtplasmac) was in heavy development and rpi4 support was "expiremental" and plasmac a no go.

Is the rpi a viable option now for a plasma table?

Look honestly unless there is some feature you absolutely must have that is the later versions I would stick with what you have. Even more so if you are using the parallel port. As the later installs do not use an RTAI kernel, which is best for parallel ports.
I think JT runs a lathe that is still on a version of Linuxcnc that runs on Ubuntu 8 or something like that back when the project was called emc2.
Unless you have a download of the image file that passes the md5sum test you are on the road to nowhere. Get that sorted first if you want to proceed.
Before anything back up your Linuxcnc folder that is in your home folder so you don't lose any of your Configs if things go bad.

It may help if you can give some info regarding the machine, are you using a parallel port or not, the CPU on the computer you wish to use, I don't want to look up the specs of the computer you are using as the same model can have different CPU, memory HDD and so forth.

Oh hang on you have a working Linuxcnc install ?

If so you can use that to make the USB stick.

This is a very comprehensive article on how to do that
www.cyberciti.biz/faq/creating-a-bootabl...k-on-a-debian-linux/

Or you can search for WSL dd to USB.
WSL is windows subsystem for linux

learn.microsoft.com/en-us/windows/wsl/install

I forgot, do they have step/dir inputs?
If yes, then yes, they can be used with Mesa or parallel port.
Also, mind the power requirements as they do require 5V and 12-24V (or more).
Edit:
Just checked and yes they do have step/dir pins, so yes they will work.