mechancial battery mass disk (laval disk with rim)
thingiverse
This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/21ws6qDLvFQ I made this off a picture and really rough guess on over all dimensions (please note it's been years since i model anything ) feel free to make any changes just out an idea my way. Mechanical battery works on an situation of mass to power ratio for certain applications so heavy to moderate infill is recommended best wishes live long and prosper.
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