Hi Everyone,
I am totally new to 3D printing having just finished my first machine build (FLSUN i3)... I have been reading the documentation for Marlin trying to figure out a simple issue, but I'm not sure as to the vocabulary to use. That is, I'm having trouble finding a solution likely because I'm not sure how to phrase the question. So, let me try posting rather than “googling” any further.
When I send the Home command, G28, the system “zero’s out” correctly by hitting my X/Y end switches. First it hits X to find 0, then it hits Y to find 0 (let’s forget Z for this question). Once completed, the nozzle is then sent to X85, Y111.
1) My bed is square (200x200), and thus the center is x100, y100. Why would the nozzle go to x85, y111? I assume it is programmed in the config file somewhere? Do I need to get into the code and recompile the firmware?
1) In order to place the nozzle at x100, y100, I must tell the system to move to x103, y95 (which is actually 100,100 on the bed). I assume that is my “offset” (the difference between that and 85/111). I have attempted to change this using M206 followed by M500 to save, but every time I do so, hitting home brings me back to x85, y111.
What I really want to do is configure the center or my nozzle to be the center of the bed. Any help would be appreciated.