Vismach is a simulator to show 3D previews of a physical machine. The function an screenshots are presented below, for a tutorial, look at the bottom of the page.
Vismach.py is a python library to draw objects in a simulation window. It is located in /usr/share/pyshare (can't find it on git - was it removed?). The simultion itself is a script, based on vismach.py. The scripts are located in /usr/bin (Hal components). The .hal file of your machine in your /home/user/linuxcnc/config/yourmachine loads this script with "loadusr" al a HAL component and connects the axis. Following important things are described in the script:
At the moment, these simulations are available:
Example for object "ram":
ram = Translate([ram], 0,0,150)
table = Collection([
crotary, # relation to previous object Box(-150,-50, 81, 150, 50, 100), Box(-150,-40, 75, 150, 40, 81), ])
Vismach can be used to verify motions that don't show up in AXIS preview, such as custom kinematics or m-codes. This screenshot shows a "virtual rotary table" using the C-axis. Another example on what one can do with LinuxCNC (ex Enhanced Machine Controller) and Vismach help.
=== get familiar with HAL===
The Simulator is loaded as Hal Component. Open a terminal and type:
Then you will get the command line for HAL. Type:
A Window with the 5 axis simulation should appear (it is not connectetd to a controller, so you can't do anything with it now, than view it). Close the Window an Terminal. Now go to your /home/usr/linuxcnc/config/your_machine folder and edit the .hal file. Add at the bottom the line:
loadusr -W 5axisgui
The -W option tells Axis to wait for the simulator. Then start your machine configuration. This time the 5axisgui window will appear with ist (again it is not connectetd to a controller, so you can't do anything with it now, than view it)