Troubleshooting

When I calculate paths rendering doesn't work i.e. I see a blank screen

Fab Modules use tags like Canvas which are not supported equally in all browsers. Make sure you are using a recent version of either Google Chrome or Mozilla Firefox as a browser. They are available on all platforms.

In Roland Mill module I cannot move the x,y, but the machine will home and stop

In the current version, before being able to move to a given x,y you need to select a process i.e. (PCB Traces) first.

In machine modules when I hit the send button I receive the following message: can't connect to 127.0.0.1:12345

You need to have the mod_server.js web socket server running locally for sending data to machines. Please read the install instructions.

In machine modules when I hit the send button I receive the following message: error: /bin/sh: mod_serial.py: command not found

You have to make sure that mod_serial.py is executable (in unix like system, chmod +x mod_serial.py) and that it's placed somewhere in your path. One other option is to move mod_serial.py in the same folder containing mod_server.js and prefix the command with ./, i.e. the text field shoudl contain something like

./mod_serial.py /dev/ttyUSB0 9600 dsrdtr

In machine modules when I hit the send button, a message similar to this appears on the console:

executing: ./mod_serial.py /dev/ttyUSB0 9600 dsrdtr "Etching.rml"
{ [Error: EACCES, open 'Etching.rml'] errno: 3, code: 'EACCES', path: 'Etching.rml' }

This is a permission problem with folder containing mod_server.js, where file are written before being sent. Make sure you have permissions to write in the folder, assuming it's called mod_server:

chmod +w mod_server