I recently received a message from a subscriber who was having issues with their starting G Code and asking if I could send mine to them. I explained that Start G Code is fairly unique to a specific printer and the user’s requirements. So I created a video, linked above, detailing where custom start G Code can be set in Slic3r, Simplify3D & Cura, together with a description of the kind of things to look out for and insert in this start G Code.
I refer to the RepRap Wiki page on G Code, which can be found here. This lists pretty much all the commands you are likely to come across in a G Code file.
I also mention a list of some common placeholder variables that can be inserted in custom G Code – to be replaced during export with settings from your profiles. That list of Slic3r, Simplify3D & Cura common placeholder variables is here. Please note that, apart from Slic3r, support and documentation from the slicers is poor to non-existent.
I will be covering the Custom End G Code in the next video as this first video on the subject was getting long due to having to cover the basics of G Code and the differences in the slicers.