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I am having an issue installing Flex GUI on a second RPi 4B that I have. Here is what I did and what is happening.

1. Downloaded and burned fresh image of LinuxCNC for RPi onto the micro SD card. Version 2.9.4.  Boots up fine,logging in with cnc/cnc as user/password.
2. Downloaded the Flex GUI download from the github repository. Version flexgui_1.1.2_arm64.deb
3. Right click the downloaded file and selected "Open With 'GDebi package Installer'"
4. In the GDebi installer, wait for it to load and click the "Install" button.

From here, the GDebi package installer window disappears and nothing happens. Flex GUI apparently isn't installed because the CNC menu doesn't have the Flex examples.

Can someone help with what I am doing wrong?

The tailstock on the machine works by movving the z axis so it is aligned with the tailstock then a pin gets hydraullically pressed into the tailstock so when you now move the z axis it brings along the tailstock so you can move it to the desired position. Does anybody have a idea how i can make this. I tried to use a m100-199. But then i saw you canttt use subroutines. Otherwise ittt would be perfect since you can use its related parameters to set where you want to place the tailstock. Is it possible to use parameters with unallocatted mcode. So you could maybe do a m20p200?
 

PCW wrote:

I would say a couple hundred KHz so pretty much any encoder interface could work.
Also better if its a square wave so it asks the least of the frequency/period counter.
An offset frequency is good also so you don't lose bandwidth near 0 frequency.

Hi PCW

   If in your opinion square signal 20kHz = 70kHz for 0-10mm distance ( 0.05kHz / 0.01mm resolution ) is good idea ?
And 10kHz for colision.

rebelx wrote:

Thank you so much! I will certainly give it a try. I have been monitoring your github page for quite a while in anticipation of your great work, so this is big news!

As for Clear Linux, I believe they finally got it working on their distro, but made it part their maker-cnc bundle, which includes programs like inkscape and OpenSCAD, which are great apps but should not run on a machine controller. They do not seem to fully understand the LinuxCNC ecosystem, so I have already lowered my expectation (or should I say hopes?).
 

Be aware that my image does not work with axis for some reason due to this bug:

github.com/linuxcnc/linuxcnc/issues/3205

I recommend FlexGUI or gmoccapy until qtpyvcp switches over to pyside6. All GUIs that depend on Qt5 such as QtDragon do not work as Gentoo is dropping support for Qt5. There's been progress with qtpyvcp and pyside6 but is not stable yet.

If you use a run-in-place environment instead of using the gentoo package, axis does in fact work.