Battery Case for Hearing Aid Batteries (312 Brown)

prusaprinters

<p>I have a friend who uses hearing aids for both ears. The hearing aids, doesn't say when the battery is low. it just goes out.</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).</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> <h3>Print instructions</h3><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>