Hollowing for resin printing
A shell with an even wall, drain holes at the cavity’s lowest points and matching plugs: less resin, less suction on the FEP film.
Drop your 3D file hereSTL, OBJ, 3MF, GLB · or click to choose
Hole side
Free once a day with a 2 mm wall and two 3 mm holes; free settings with Pro.
The preview shows the shell cut in half so the cavity and holes show.
Drop a file to see it here
Go SplitSTL Pro
Every tool option, unlimited exports and 10 AI credits a month. No commitment, cancel in one click. No ads, no selling your data.
Export €4.99
Pro monthly €7.99 / month
Pro yearly €59 / year
How it works
- Drop a closed STL (repair it in the editor first if needed).
- Set the wall thickness, the number and diameter of holes.
- Download the shell and plugs, print, drain, then plug.
FAQ
Which wall thickness?
2 mm for a figurine, 2.5 to 3 mm for a large part or flexible resin. The wall is never thinner than requested.
Where do the holes go?
At the lowest points of each cavity, on the plate side by default, through the wall only: never through a fine detail.
Is it free?
One hollowing a day with the default settings is free. Custom settings and regular use are part of SplitSTL Pro.