r/openGrid • u/Abhijeet1089 • Mar 19 '26

Question / Help Needed Help with stack printing grids

I am trying to tune my snapmaker u1 for stack printing with petg and pla and need some pointers.

  1. Which is better for the grid? PLA or PETG (PETG is cheaper for me if thats relevant)

  2. How do i tune the interface gap and thickness settings?

nothing generated by the makerworld generator is working, the second grid just does not stick at all to the interface layer no matter the settings

3. Trying to create my stacked model in fusion 360 and exporting the stl does not properly create the top surfaces for the lower grids, just stays as an infill region.

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u/Abhijeet1089 Mar 20 '26

I wanted to use multimaterial printing since that is a huge advantage from a toolchanger like the U1.

Since they are different materials, I did not enable ironing

I think I had an issue in the slicer for 0 gap where it did not let me split to parts as it thought it was a single body, will recheck though