A detailed STLBEAST repair guide to prevent trapped pressure and uncured resin in hollow models. Learn how to recognize the symptom, rank the likely causes, apply safe fixes in order, verify the result, and prevent the failure from returning.
Start hereStart with inspect hollow preview, then place low drain holes. Confirm the result with a short representative test before changing additional settings.
First safe actionRun the first safe check and change one variable at a time.
Proof targetA small representative test no longer shows the original symptom.
Match the failed area to the visual before changing a setting.
Repair progress0 of 8 complete
Step 1 of 8
Document the failure and confirm that it matches this guide: Hollow prints crack, deform, leak resin, or pull hard from the film.
Keep the problem and target visual open while you make this change.
Why this matters
Pressure rises during lift.
Setting or checkNormal exposure
Tune for detail and layer strength at the actual resin temperature.
Expected result
Air and resin move freely through correctly placed drain and vent holes.
Step 2 of 8
Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.
Keep the problem and target visual open while you make this change.
Why this matters
Viscous resin cannot escape.
Setting or checkBottom exposure
Use enough for adhesion without excessive base growth.
Expected result
The same test succeeds at least twice without a new artifact appearing.
Resin PrintingResin Islands and Unsupported Pixels
Resin PrintingResin Exposure Calibration
Resin PrintingResin Lift Speed and Distance Tuning
