It's #FreeCADFriday once again!
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It's #FreeCADFriday once again! Happy weekend to everyone! As ever, show us what you're working on with #FreeCAD!
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@FreeCAD Finally printing at least the first iteration of my solar charge control and battery power distribution box for #HamRadio POTA that I shared early versions of last week and have been tweaking in FreeCAD on and off in the meantime.
- Two battery busses, each with both an XT60M and PowerPole connection. Each bus is intended for only one battery, though.
- One XT60M connector for a solar panel connected to a charger, which can be connected to either battery bus or disconnected. The solar charger has a USB-A output as well. A relay (internal, not visible in this model) protects the solar charger from being connected to the solar panel unless it is connected to one of the battery busses.
- Two device buses, each with three fuses protecting five device power ports, for a total of eight XT60F and two PowerPole connections.
- One 65W USB-C PD converter with a USB-A socket that can charge a laptop.
- Each device bus and the USB-C converter can be independently switched between the two battery busses or disconnected entirely.
- Not part of this box, but the solar panel also has USB-A and USB-C power supplies built in.
The design was exploratory and is not the cleanest or more parsimonious or highest-performing modeling, but such as it is, it is available at https://gitlab.com/mcdanlj/SolarPowerBox
I can't imagine anyone else wants to make this, and the planned schematic is not drawn let alone shared, but some of the parts might be useful. I did make them in a dev build of FreeCAD, so they are untested in the stable 1.0.1 release.
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