Split a model that is too big for the Elegoo Saturn 4 Ultra
The Elegoo Saturn 4 Ultra prints up to 218 × 123 × 220 mm. SplitSTL splits your model into parts that fit, with pins or magnets, engraved part numbers and 3MF plates ready to slice.
Build volume of the Elegoo Saturn 4 Ultra
Build plate 218 × 123 mm, height 220 mm. Keeping a 5 mm margin, each part must fit in 213 × 118 × 215 mm. Parts can be turned on the plate, so SplitSTL also picks the orientation: a long, flat object can reach about 233 mm along the diagonal.
Your model
Enter your model’s size to estimate the number of parts.
How many parts for your projects?
Minimum number of parts with a grid split, each part oriented to fit the plate (5 mm margin).
| Object | Size | Parts |
|---|---|---|
| Cosplay helmet | 240 × 280 × 300 mm | 12 |
| 50 cm vase | 250 × 250 × 500 mm | 18 |
| Life-size bust | 450 × 300 × 600 mm | 24 |
| 1 m statue | 400 × 350 × 1,000 mm | 30 |
| 1 m sword | 1,000 × 220 × 40 mm | 10 |
| 80 cm wall sign | 800 × 500 × 15 mm | 12 |
Tips for the Saturn 4 Ultra
- On a resin printer, hollow large parts and add drain holes: less resin and less suction.
- Parts stay small: expect more parts than on an FDM printer and glue them with cyanoacrylate.
- Thin pins (3 to 4 mm) are enough; check the fit with the coupon, resin is less forgiving than filament.
- Tilt the parts in your resin slicer after export: the cut face is still the best orientation reference.
The same helmet on other printers
- Elegoo Mars 5 Ultra · 153 × 77 × 165 mm · 16
- Anycubic Photon Mono M7 Pro · 223 × 126 × 230 mm · 8
Read next
Frequently asked questions
What is the maximum print size of the Elegoo Saturn 4 Ultra?
The build volume of the Elegoo Saturn 4 Ultra is 218 × 123 × 220 mm. Anything bigger has to be scaled down or split into several parts.
How many parts for a cosplay helmet on the Saturn 4 Ultra?
A helmet of about 24 × 28 × 30 cm needs at least 12 parts on the Saturn 4 Ultra with a grid split. The natural-joint split of SplitSTL Pro can follow the helmet’s design lines instead.
How do I join the printed parts?
SplitSTL drills aligned pin holes (printable pins included) or magnet pockets, and engraves each part’s number on its cut face. An illustrated assembly guide comes with the export.