VESA Spacer / Adapter modified (v2) – Restores Rear Ventilation for RIGOL Oscilloscope Mounting (DHO800/DHO900)
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VESA spacer that restores rear fan airflow on oscilloscopes. Prevents overheating. Parametric FreeCAD model included.
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Model information
- Source
- Printables
- Category
- Tools
- License
- Creative Commons — Attribution — Noncommercial
This model is a VESA spacer/adapter designed to be placed between an oscilloscope and a VESA mount plate. This is modified version of this model. Both models have the same mounts VESA75->VESA100 and look similar, but I tried add more space to the model.
The primary purpose of the spacer is to restore free airflow around the rear ventilation and fan area, which can otherwise be partially or fully blocked when mounting the device directly to a VESA plate. I used my version on RIGOL DHO924S and author of original model designed it specifically for a RIGOL DHO814. It seems DHO900 series has the same air problem with like DHO800 has.
Sizes of provided STL
VESA 100mm, M4 holes
VESA 75mm, M5 holes
Printing notes
Designed as a structural spacer; print settings should prioritize strength and dimensional accuracy (for example I used 6 wall loops and 6 top/bottom shell layers with 15% sparse infill).
Current size fits to the smallest printer like Sovol Zero (150x150mm plate).
I printed model with PETG, but PLA version will durable too I think.
Supports required, look at the picture below for the recommended model position and supports set:
More details
I won't copypaste the full description of the original, just check the link for more details about the model:
Conclusion
If you mount equipment that relies on rear airflow, this spacer is a simple and effective way to avoid thermal issues caused by blocked ventilation while still using standard VESA hardware.