Blackmagic UltraStudio 4K Mini Desk Mount

# Blackmagic UltraStudio 4K Mini — Under-Desk Mount

## Summary

Optimized under-desk mount for the **Blackmagic Design UltraStudio 4K Mini**. Anker 778-style tray design with side bracket wings, mounting flanges with 45° support angles, and a hexagonal ventilation grille. All front and rear ports remain fully accessible. Material-optimized for fast printing with only ~103 g filament

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## Features

- **Tray Design with Flanges** — Device is inserted from above, mounting flanges with 3 screws each are screwed to the underside of the table
- **Full Port Access** — Both long sides (210 mm) completely open: Front XLR, 48V Phantom, Headphones, Buttons, LCD Display, Rotary Encoder, SD Card Reader / Rear IEC Power, Thunderbolt 3, USB-C, DB9 Remote, SDI In/Out/Loop, HDMI In/Out, Ref In, Analog Video (BNC), Analog Audio
- **Hexagonal Ventilation Grille** — Hexagonal hole structure on both short sides for optimal air circulation directly to the device's ventilation, prints cleaner than round holes
- **6-Point Screw Fastening** — 3× M4 countersunk screws per flange, countersunk on the underside for flush fit on the table
- **4× 45° Support Angles per Side** — Reinforce the connection between bracket and flange, safely support the 1.2 kg
- **Retention Lips** — 4 continuous retention lips at the corners prevent slipping when inserting cables or SD cards
- **Material Optimized** — Cross-braced base plate with ribs instead of solid material, only ~103 g filament
- **45° Fillets** — Reinforcement at the wall-to-base transition for stability and better printability
- **Parametric (OpenSCAD)** — All dimensions adjustable

## Compatibility

Suitable for the **Blackmagic Design UltraStudio 4K Mini** (BMDUO4KHDMINI)

Measured device dimensions: **145 × 210 × 46 mm**, 1.2 kg

## Printing Recommendations

| Parameter | Recommendation |
|---|---|
| Printer | Bambu Lab P1S / X1C or comparable (min 256³ mm build volume) |
| Material | PETG or ASA recommended (heat + weight), PLA possible |
| Layer height | 0.2 mm |
| Infill | 20 % Gyroid |
| Walls | 3 perimeter |
| Supports | Only minimal on gusset overhangs, hex grille prints without supports |
| Print time | approx 3–4 hours (Bambu Lab P1S) |
| Filament | approx 103 g |

**Print Orientation:** Print flat on the base plate. The flanges and gussets point upwards. The hexagonal grille prints cleanly without supports, as one flat side is parallel to the print bed

## Assembly

1. Prepare 6× M4 wood screws (approx 12–16 mm, not included)
2. Hold the mount with the flanges against the underside of the table, mark the holes
3. Pre-drill (3 mm) and screw in — screw heads countersink flush with the underside
4. Insert the UltraStudio 4K Mini from above — Retention Lips hold it in position

## Design Optimizations

This design has been optimized over several iterations for minimal material usage with maximum stability:

- Cross-braced base plate with 4 transverse and 1 longitudinal rib instead of a solid plate (saves ~50% base material)
- Reduced wall thicknesses (3.5 mm) with 45° fillets at the transition to the base plate
- Hexagonal instead of round ventilation holes for better printability
- Compact 17 mm flanges suitable for Bambu Lab P1S build volume

## Dimensions

- **Outer dimensions:** 147 × 253 × 50.5 mm (fits in P1S with 256³ mm)
- **Flange width:** 17 mm each side
- **Wall thickness:** 3.5 mm
- **Inner device space:** 147 × 212 × 48 mm (with 2 mm tolerance)
- **Screws:** 3× M4 countersunk per flange (6 total)

## Included Files

- `Blackmagic_UltraStudio_4K_Mini_Desk_Mount.stl` — Print-ready STL file
- `Blackmagic_UltraStudio_4K_Mini_Desk_Mount.scad` — Parametric OpenSCAD source file

## License

Creative Commons — Attribution (CC BY 4.0)

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*Design created by Marco Herbst (@marcoherbst.work)*