Unresolved Z axis problems with new XXL LCD

Hey guys, I just installed a XXL LCD on my ROBO 3D (Stock). The printer is 2 months old and the XXL is new. I installed it and did a test print of the Cal. Block.

The problem I am having is the Z axis is to low when the print starts (1/4 inch or so)... Is there a way to fix this? I'm not to savvy on changing code etc... any help would be great.

 

You're printing off SD or USB? What slicer are you using?

Sounds like you need to add an offset.

 

Printing from usb without xxl is perfect. From sd without computer works if I adjust the z axis by hand up about the thickness of the glass bed. I tried adjusting the offset but when I do that the Z starts even lower. If I were able to set the offset to -2 or so it would solve my problem. But my xxl will only allow positive numbers for the z offset.

Thoughts?

 

There was another question there

Also is this from matter control or a different software if it's a multi-slicer engine.

If you're not using MatterControl you need to add a Z probe offset using the M565 command, eg

Code:

M565 Z-1.0    ;Add 1mm of offset

Slic3r does have a z offset box but if you use another engine it won't work.

MatterControl is weird and I think you need to use the utility. I suggest slicing in Cura

 

I am using mattercontrol and slic3r. I set up on the pc and then export as g code to a sd card.

How do I add cura?

Suggestions?

 

If you're using matter control you need to use their printer leveling routine. They do something wonky with autolevel code that I don't fully understand.

Cura is a standalone software (as well as an engine in mattercontrol)

Just use the machine size of X: 228 Y: 254 and Z: 228 with baud rate 250000

 

Thanks I'll give it a go tomorrow since the machine is in my classroom.

When I use usb and auto level I had problems. I solved those by turning off auto level and using the manual configuration in mattercontrol with the sheet of paper.

So you think cura will be better for my situation?

Thanks for your help so far.

 

I assume it is easy to input those parameters in cura?

 

Repetier Host + Slic3r is awesome, Cura is simpler (you can now use the Cura slicer in Repetier Host as well), Matter Control is just stressful.
Simplify 3D is pretty simple and has excellent support material generation and a great interface but costs $140.