Lithopane boxframe
thingiverse
A smaller version of my larger frame with space for a small charging PCB with microSD port, same push button and a small CR123A rechargeable battery. For lithopane prints 100*75mm (landscape 4:3). Made 4 of these now for presents and seem to work quite well. I used the battery holder from thingiverse; "Flexing battery holders with integrated spring" https://www.thingiverse.com/thing:456900 Charging PCB from ebay (item no. 123343758330); https://www.ebay.co.uk/itm/10x-5V-Micro-USB-1A-18650-Lithium-Battery-Charger-Module-TP4056-With-Protection-/123343758330?_trksid=p2349624.m46890.I49292 The switch is a latching type 18mm dia, a recess within the frame accommodates and the hole is 16mm. Got this from ebay; https://ebay.us/P2ZTdn
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