Solved Here I am again... Print head dragging accross painters tape.

Adjust your Z offset?

 

Its in the menu somewhere, you can change the offset in either the 4 line or full graphics controller.

 

I always suggest your z offset be put in your slicer gcode start block

G28, ; home all axis
M565 -1.0 ; set z offset -1.0 is variable
G29 ; autolevel dance

Yours can vary from this, just an example. Once it homes and autolevels your M565 sets the "gap" between the nozzle and the bed for your first layer. You will need to adjust it for your new set up.

 

Yes, @Geof has nailed it -- for the autoleveling offset it is best set there.
A non-autoleveling, global offset you can put where ever you like (but that is not helping the autoleveling).

 

-.067 is closer than -1.0. -1.5 is further than -1.0 0 is on the glass (technically). Assuming I'm still doing this right lol, its been a few years since I've had firmware with the M565 offset and may have it backwards lol.

I cant answer any questions about Matter Control. Havent used it since 2013-2014 era but somewhere in your start scripts for your slicer you should be able to add the M565, then the gcode for me would go on a SD card and into my printer. If your using astroprint then slice, send to astroprint and that sends to the printer

Some people (at least with octoprint) use the scripts in Octoprint/Astroprint. The only printers i have that use those I dont do it that way. Everything is in my Slicer and all octoprint does is carry the gcode to the printer and let me monitor Adjust your setup to whatever you prefer

Edit: Just dont have scripts in both places or you'll do everything twice- no no

 

You have two issues --
1) A slicer that turns the STL into GCode and that is where you want to set the startup GCode block (normally)
2) A print controller like AstroPrint or OctoPrint where they (normally) take GCode files already sliced and deliver them to the printer

You can (at least with OctoPrint) also slice inside it, but that is not really a great solution unless you love their built-in slicer (an older version of Cura). I have no real knowledge of what/how Astroprint handles those details, but IIRC from the last time I looked at it it was very similar to OctoPrint

 

You can use your printer anyway you want, the printer wont care, just dont give it to seperate sets of start up scripts

This is a global offset. I suggest you dont use. Use the start up scripts like shown above

Ok I do understand what you mean. The autohome on the controller probes X, Y and Z. Literally puts them at home. You'll need to lift the Z manually after a home to prevent it from scraping the glass. I dont use the controller to home the machine unless I specifically need to, the start up scripts handle homing and autolevel (including your offset) and will take into account the added thickness (the machine doesn't care if there is 2 inches of build plate height added- when it probes the bed that is "Home"

I'm hoping this is all making sense?

If your printing good, just dont auto home with the controller

 

Yea, the smart controller is a totally different beast and controlled directly by the firmware and flash EPROM defaults. You can't control the autoleveling offset that way (OK, you probably could with firmware edits, but leave that to the slicers)

 

@robert albrecht

Auto level and auto home are two different things, you should auto home before EVERY print (G28) but auto level (G29) may not be necessary if your bed is mechanically as level as you can get it and your Z offset is close to 100% accurate. Christmas will move to June before Auto-Homing becomes unnecessary.

 

I was just meaning to not autohome on the controller. Just let the G28 in the software start up scripts home your machine Waldos got it nailed. It has to home, but not via the controller manually by you