Chimney Case for Coralboard SL

Chimney Case for Coralboard SL Modular, snap-fit, no supports. Stands upright or lies on its side. A case and stand for the Synaptics Coralboard SL, built as a vented tower. The board sits on a slide-out tray inside a snap-together chassis with mesh side panels, a grille on top and a gap under the base, so air can pass through without a fan. Swap the side panels to change the IO window, add a camera aperture or turn the case into a horizontal stand. Features - Snap-fit chassis, no supports. The default build prints without supports, on a Bambu Lab P1S.

- Slide-out tray. Remove the top cap, pull the tray, and the board comes out with it.

- Two builds from one set of parts. Vertical, with an extended grille stand as the base, or horizontal, on angled feet.

- Swappable panels. IO window, plain mesh, optional camera aperture, and a foot panel for the horizontal build.

- Passive ventilation. Mesh sides, a top grille and a gap under the base. I haven’t measured temperatures, so this is a design for airflow, not a tested cooling claim.

What you need - 4 × M2.5 heat-set threaded inserts (3.5 mm wide, 4 mm long)

- 4 × M2.5 screws

- A soldering iron for the inserts

- Optional: a drop of instant glue to remove the last bit of play at the chassis seam

Printing - See the included manual for more details.

- Printed in PETG (white, grey and black) on a Bambu Lab P1S. PETG is recommended. PLA is untested, and may fatigue the snap fits.

- Side panels: top and bottom shell layers set to 0 for open mesh, 40% cross-hatch infill (as in the photos). Other patterns work.

- Print the grille stand for the vertical build, the feet for the horizontal one.

Assembly - Heat-set the 4 inserts into the tray, then screw the board to it.

- Snap the chassis bottom and top together, aligning the slots. It can’t be taken apart afterwards without breaking the tabs.

- Line up the IO cover with the board’s ports and slide the tray into the chassis.

- Snap on the panels and caps. Everything after the chassis is reversible.

Camera option There’s an optional panel with an aperture for the Coralboard sensor HAT camera. The HAT’s CAD isn’t available, so the aperture and its distance from the board are estimated from the reference CAD and photos. Treat them as adjustable, and expect to tune them. I’d be glad to hear what you measure on a real HAT. Credits and licence - My design: CC BY-NC-SA 4.0.

- Board model: Coralboard SL reference CAD from the Coral Printables account, licensed under Apache 2.0. It’s used only in renders and for fitting, and isn’t included in the downloads.

Made for the Printables Coralboard Cases & Mounts contest.