Most haunt prints don't die in the slicer. They die on the first 10 mm.

Large outdoor pieces (tombstones, fence posts, skull stacks) have a huge first-layer footprint. If that layer is 0.05 mm too high, the whole prop lifts at hour 6 and you waste a kilogram of filament.

What I check before any overnight yard print:

• Bed is actually clean. IPA is not enough if you printed PETG last week. Wash with dish soap, dry, then glue stick or a fresh PEI sheet.

• First-layer height, not just "level." Paper test lies on big beds. Print a 200 mm square, one layer, and look for gaps at the corners.

• Enclosure or draft shield. Garage wind will warp PLA on anything taller than 150 mm. A cardboard draft shield beats a $400 enclosure for haunt season.

• Don't scale a tabletop STL to yard size and hope. Wall thickness and infill that worked at 80 mm will pancake at 600 mm. Add walls. Drop infill. Split the model.

If the printer itself is the problem — skipped layers, heat creep, a clog that comes back every 40 minutes — that's hardware, not the file. Files and repair are separate jobs. Don't pay for a "support bundle" that pretends they're the same.