Im looking to hook up an e-stop/pause button to my printer and I read in the config file pin 2.12 or 2.11 is a good pin to use. I was wondering if anyone has tried this with success. If you have did you use a momentary button and how did you hook it up to the board?? Any help would be great.
Imported from wikidot
You can use any pin you want.
Then just setup a switch module to do exactly what you want : http://smoothieware.org/switch
So i can pick whatever pins i want but what will the wires hook up to on the board?? Some of the spots i can pick have signal and ground, would that work to setup the e-stop??
To setup a switch, you need a pin, and gnd, both of which you can pick anywhere on the board where they are un-used.
See http://smoothieware.org/pinout
On deltas there is a small problem. If you home the printer and press Suspend ( or change plastic) printer tries to move according to suspend gcode but cannot. So we need to add config parameter - if Z height above the parameter - turn off suspend gcode. I currently hardcoded this value, but think about config option for it.
My concern is hooking it up wrong and shorting out the board, should i use an EN1, DIR1, ST1 pin thru the switch to ground or is there a better option. Im only asking because i understand to pick a pin, just is there consequence for the wrong one??
As long as you are only using normal pins and/or gnd and/or 5V pins, there is no risk of burning anything, so you can just experiment.