A representative housing including a suitable foam insert was to be created for a Neumann KM 184 microphone and the associated EA 2124 microphone spider. The Neumann company itself does not deliver a housing in which the microphone, the windscreen, the holder and the associated spider in particular can be placed together. So something had to be designed and produced.
In FreeCAD, the Neumann devices and parts were first reconstructed so that they could be positioned in relation to each other in a space-saving manner. With this method, the depth of the milled holes in the foam could also be determined. The enclosure was then constructed around these Neumann devices and converted to gcode using Luban.
FreeCad’s Path Workbench was then used to create the milling paths, which were again converted to gcode using @clsergent’s Postprocessor for Snapmaker.
The case was printed using the new dual extruders on the Snapmaker A350 (even though only one filament was involved). Finally, a special foam cutter from VHF (excellent support there!!) was used to mill the foam for the top and bottom parts.
I first constructed the closing of the case directly as 3d into the model. But since this did not hold securely enough, I switch the model to two metal closures. These are attached to the 3D print with fusion threads.
I hope you like my work
And oh yes. In the meantime, the housing is constructed in various variations as a parameterizable object in FreeCAD. A new housings in other dimensions are created in a few minutes and exported as stl.
Regards
Josef
