Card holders with exactly your slot count
Six slots, ten, fourteen — say the number and the spacing handles itself.
- SD or microSD slot sizing
- Any slot count
- Desk-stable weighted base
Example prompt: “SD card tray with 6 slots, labeled spacing, 3mm walls”
How it works
Type what you need in plain words — sizes in millimetres if you have them. STLsmith's AI converts it into parametric geometry with FDM rules baked in (2mm minimum walls, real M3–M5 screw clearances, no-support orientation where possible). Preview it in 3D, refine by chatting (“5mm wider”, “M5 instead of M4”), and download the STL for Cura, PrusaSlicer, Bambu Studio or any other slicer.
What you can set
Every dimension is yours to choose: overall size, thickness, hole diameters and positions, counts and spacing. The first three forges are free with no account, and every generated STL downloads in full.
Frequently asked
Is the sd card trays STL free to download?
Yes. You get 3 free forges without an account and 5 more with a free account — every generated STL downloads in full, no watermarks.
Can I set exact dimensions?
Yes. Describe sizes in millimetres in the prompt, then refine in chat until the preview matches what you need.