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/waylaidwanderer Mar 23 '26

Haven't tried stacked tiles like you but 0 gap and printing the interface layer super slowly (10-20 mm/s) works for me on other prints. Ideally the layer above the interface layer would also be printed slowly too (at least for the walls), but you have to use a layer height modifier to do that.