Crab Shell - CoralBoard SL Development Frame
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CoralBoard SL case designed to simplify development process. Accessible IO customizable mounting and cable management
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Electronics
- Licencja
- Creative Commons — Attribution
WHAT and WHY?
This is Crab Shell, an enclosure for the CoralBoard SL development kit PCB. It is my design entry for the Printables contest.
I don’t own a CoralBoard myself, so I designed this case by imagining how I would use the board for personal projects. I thought through the problems that could come up along the way and tried to solve them in the case design itself:
Plenty of space: all ports and headers have generous clearance to stay accessible, and the open back gives access to all test points and the ribbon cable routing.
Wires and cables: extra room for larger USB and USB-C plugs, cut-outs for zip-tie cable management
Upgrades: space for Wi-Fi card, HATs, camera, screens and other addons
Daily use: compliant buttons with clear markings are easy to differentiate, LEDs are visible from multiple sides
Where to put it: Lots of cut-outs for custom mounting with zip-ties or Velcro strips, optional adapter plate provides most popular mounting options.
I could not test-fit the case on a real board, so I used the official reference CAD model. If you own a CoralBoard and find a fit problem, please tell me in the comments and I will fix it.
Why it's cool
Tool-free assembly - Two parts, Base and Lid, snap-fit together, sandwiching and securing the board between them.
Compliant buttons - Base has two bendy buttons, distinctly marked. No extra parts, no assembly.
Optional Mount Adapter - with mount adapter Crab Shell can be mounted:
VESA 75×75 and 100×100
IKEA SKÅDIS, horizontal and vertical orientations
Two multi-directional wall keyholes.
1/4"-20 UNC heat-set insert hole.
Optimized for FDM - Easy to print. Lid has support designed in the model as separate part. It okay to not use provided support. Auto-generated or even no supports will print successfully. Works with default settings but I have custom settings file included for best results.
Print Instructions
Files included:
Crab Shell CoralBoardSL.published.3mf - all 3 parts with additional slicer settings for best results. Change your printer type if it does not match.
Crab Shell CoralBoard Lid.3mf
Crab Shell CoralBoard PCB Base.3mf
CrabShell mounting plate.3mf
STL file format for separate parts included.
Assembly:
Step 1 - Seat PCB on the Crab Shell base through pins. Make sure the buttons face the front.
Step 2 - Align the Lid with help of back geometry
Step 3 - Close down the lid till both sides snaps shut. Watch out for interference while lowering the lid.
Assembly example provided with main pics or Youtube: https://youtube.com/shorts/eiFp8Vgoi_U?si=V7o88AZQkm0K86dM