Comment by deckar01
10 days ago
3D printer beds have been getting bigger, but slicers don’t seem to account for curling as large prints cool. The problem is long linear runs on bottom infill and perimeters shrinking. I’ve been cutting my large parts into puzzle like shapes, but printing them fully assembled. This adds curved perimeters throughout the bottom layer, reducing the distance stress can travel before finding a seam to deform.
That said, a retro laptop this thick would look really nice in stained wood.
I stop seeing those issues after starting using Bambulab X1 3d printer, it just works 99 percent of the time. My old ender 3 v2 had those issues due to bed changing its shape during printing(thin metal changing shape in micro level due to temp and mechanical stress with 4 knobs pulling down), not sticking well, not enough fast cooling or cooling effects bed temp profile, way off even with auto level probes. Also open 3d printer with bunch of air flow is a killer for those prints. OP should try Bambulab like enclosed more accurate 3d printer from a local 3d print shop or a hackerspace after locking the design and enclosure iterations.
With proper bed leveling, meshing, chamber temperature, ears/brim, and glue this shouldn't be a big issue.
What printer are you using?
Prusa XL with higher temp filament, not enclosed. I was making parts that spanned corner to corner. It works fine once I prevent it from making 400mm linear runs.