Battery Case for Hearing Aid Batteries (312 Brown/Type 13) as a Keyring

prusaprinters

<p>Made ist lighter and as a keychain. Used Chicargo screws with a 5mm nut-side and a distance of 5,5mm. there is a detent for a small spring and ball so that it stays in place</p><p>Text from the Original:<br>I have a friend who uses hearing aids for both ears.</p><p>That is why he always keeps some batteries with him. The package is thin cartboard and plastic and when carried in the pocket they can fall out.</p><p>The batteries gets activated when the brown flip gets pulled off, so it is important that they stay on there until needed. They still have a minimum of Voltage and if they touch like when they fall out in the pocket they looses what they have and won't work.</p><p>So I made him this. It fits 8 Batteries and fits nicely in the pocket. Only the middle turns, buttom and lid are fixed together.</p><p>I Made this for the Type 312 Brown (look at the pic of the package) and for Type 13.</p><p>On the blank part of the middle part I wrote his name, but I left it out for the shared on.</p><p>Feel free to use and share it - I only have one request, If you print it for someone who need it, don't let them pay for it.</p><p>I used an M3 sink-head 10mm screw to put it together. The is room for a small spring and 2,5mm ball, and detents in the lid if you want it to snap.</p><p>I Used 0,15mm layers, 4 perimeters (only 2 should be needed), infil around 15-40% what you like. I only used supports in the middle of the lid.<br>And the Hilbert Curve on top looks nice!</p><p>Be good!</p>