The Coin: Wireless LED Hearthstone Mana Token

prusaprinters

<p>Here is a prop of the Hearthstone mana token known as “The Coin”.&nbsp;</p><p>It lights up wirelessly via inductive LEDs.&nbsp;</p><p>I ran out of time due to the contest time frame, but I think it has come out pretty good so far.&nbsp;</p><p>I'm including three of the coin base models: a single-sided light-up model, a full sided model split in half that was meant to light up and a full sided model for reference.</p><p>There are three parts to The Coin: the base, the lens and the optional LED jig.&nbsp;</p><p>I placed 4.3mmx5mm wireless LEDs into the jig facing up. I didn't want to glue the leds in place since I may use them in another project. I used transparent tape to cover the holes with the LEDs in them to keep them from falling out.</p><p>The jig and base are straight forward prints. I tappered the runes on the side of the base so they should print okay.&nbsp;</p><p>The gem lens is the hard part. It's thin and needs support. I ran out of Blue PVB which is the desired color/effect and couldn't get anymore in time. I tried translucent resin with my SLA machine but it just didn't diffuse light right. In the end I backed the light further away from the lens by making the coin base single sided and using regular PLA as the lens/jewel.</p><p>I used super glue to keep everything in place (other than the LEDs)</p><p>SketchUp was used to design the model.</p>