DarkroomSCAD

Configure a negative carrier and download a print-ready STL.

Export

Carrier

Film format
Filed edges

Wider opening that enables enlarging the areas around a negative's frame

Frames

Consecutive frames the opening spans, printed side by side in one exposure. Check the preview for fit.

Enlarger
Special
Orientation
Part

A full carrier needs both top and bottom printed.

Text

Etch a name
Etch the carrier type
Type label
10
Separate text parts (multi-material)

Options

Attach alignment board

On: fused into the carrier (needs heat-set pegs). Off: exported as a separate STL with pilot holes, and the carrier gets matching screw holes — both sized for the peg screws.

Board type

Used whether the board is fused or downloaded separately.

Pegs

Printed pegs can't be combined with the alignment board.

Peg screws

Machine screws (e.g. M2×4) thread straight into the bottom carrier; the head is the peg. Sets the bottom thread hole and, with the head style, the top clearance. Fine-tune both under Advanced.

Screw head

The top carrier's hole clears the head (standard max diameter: 3.8 mm), so pick the style of the screws you actually have. Use Custom for anything else.

Flip bottom for printing
NAME35MM