jasonwitty
9f4bcec250
cad/ holds the left/right side adapters that mount the GeeekPi 9" 3U touchscreen (a 10" mini-rack part) into a standard 19" rack: OpenSCAD source, STLs, Anycubic Mega Pro gcode, and SendCutSend DXFs for the sheet-metal version. Geometry is physically tested in a 19" rack. notes/PLAN-v2.md is the reviewed plan for the Rust rewrite. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
118 lines
4.0 KiB
Markdown
118 lines
4.0 KiB
Markdown
# GeeekPi 9" Monitor to 19" Rack Adapter
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A pair of side adapters for mounting the **GeeekPi 9-inch 1280x720 3U rack-mount touchscreen monitor** in a standard **19-inch equipment rack**.
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The design also provides **three keystone-jack positions on each side of the display**.
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## Release v1
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Release v1 contains both:
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- **3D-printable adapters** for left and right sides
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- **SendCutSend-ready DXF files** for left and right sides
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The mounting geometry has been physically tested in a standard 19-inch rack.
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## Files
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```text
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.
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├── README.md
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├── 3d-print/
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│ ├── geeekpi_19in_adapter_LEFT_release-v1.stl
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│ ├── geeekpi_19in_adapter_RIGHT_release-v1.stl
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│ ├── geeekpi_19in_adapter_LEFT_release-v1_AnycubicMegaPro.gcode
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│ └── geeekpi_19in_adapter_RIGHT_release-v1_AnycubicMegaPro.gcode
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├── sendcutsend/
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│ ├── geeekpi_19in_adapter_LEFT_release-v1.dxf
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│ └── geeekpi_19in_adapter_RIGHT_release-v1.dxf
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├── source/
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│ └── geeekpi_19in_adapter_release-v1.scad
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└── docs/
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└── installed.jpg
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```
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## Key dimensions
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| Feature | Dimension |
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| --- | ---: |
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| Adapter width | 132.3 mm |
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| Adapter height | 132.0 mm |
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| 3D-print thickness | 1.8 mm |
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| Monitor mounting holes | 4.5 mm diameter |
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| Keystone opening | 16.0 x 22.0 mm |
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| Keystone vertical centers | 31.5, 66.0, 100.5 mm |
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| Clear plastic/metal between keystone openings | 12.5 mm |
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All three keystone openings are identical.
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## 3D printing
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The installed adapters shown above were printed in PLA and are strong enough to support the display when mounted.
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Settings used for the tested print:
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- **Material:** PLA
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- **Layer height:** 0.20 mm
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- **Overall part thickness:** 1.8 mm
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- **Infill:** 80%
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- **Pattern:** alternating horizontal/vertical rectilinear
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- **Bed:** 60 C
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- **Nozzle:** 205 C first layer, 200 C afterward
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- **Cooling fan:** off
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- **Brim:** approximately 15 mm
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The included `.gcode` files were generated specifically for a **stock Anycubic Mega Pro with a 0.4 mm nozzle**. For another printer, use the STL files and slice them with your own printer profile.
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Good bed leveling matters a lot for these parts because they are broad and very thin.
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## SendCutSend / metal version
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The `sendcutsend/` directory contains separate left and right DXF files.
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A good configuration for the metal adapters is:
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- **Material:** 5052-H32 aluminum
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- **Thickness:** 0.063 in / approximately 1.6 mm
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- **Quantity:** one left and one right
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The DXFs use the same keystone opening size and placement as the working 3D-printed adapters:
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- **16.0 mm wide**
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- **22.0 mm tall**
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- centers at **31.5, 66.0, and 100.5 mm**
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The remaining rack and monitor mounting geometry is unchanged from the physically tested metal design.
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Depending on the rack, display, and door clearance, small spacers or standoffs between the monitor ears and adapters may be useful to move the screen slightly forward.
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## Assembly
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1. Attach one adapter to each side of the GeeekPi monitor.
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2. Install any desired keystone jacks before rack installation if access will be easier.
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3. Bolt the assembled monitor and adapters into a 3U position in the 19-inch rack.
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4. Add spacers between the monitor and adapters if needed for front clearance.
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5. Route HDMI, USB, network, or other connections through the keystone positions as desired.
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## Editing the design
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The editable OpenSCAD source is in `source/`.
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To generate a side, change:
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```scad
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side = "left";
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```
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to either `"left"` or `"right"`, then render/export the STL.
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The DXF files in `sendcutsend/` are the intended files for sheet-metal cutting.
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## Notes
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This adapter was designed around the GeeekPi 9-inch 3U rack-mount display. Verify dimensions before ordering metal if your display or rack hardware differs.
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The 3D-print version and metal version intentionally use different material thicknesses: **1.8 mm PLA** for the tested printed version and **approximately 1.6 mm aluminum** for the sheet-metal version.
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