Print-in-Place, Customizable Cases for Button-type Batteries

prusaprinters

<p>Print-in-place model to hold button-type batteries. Some example models are included, and the OpenSCAD &nbsp;source code is provided, for full customization.</p><p>You don't need to “speak SCAD” to customize these boxes for your needs.&nbsp;Check out the PDF file uploaded here on how create a customized box per your specs. It's simple. &nbsp;The key parameters to change are:</p><ul><li>Name of the battery. The name is printed on the lid of the box.</li><li>Dimensions of batteries. CR-type batteries have the dimensions encoded in their names, CR2032 for example means 20 mm diameter and 3.2 mm depth.</li><li>Number of batteries in one “column”. Default is 10.</li><li>Number of side-by-side “columns". Between 1 and 3, default is 1.</li><li>For optional key tag, look under Other Options.</li></ul><p><strong>IMPORTANT: </strong>While the naming conventions of CR batteries usually represent their actual dimensions (see above), there are — of course ☹️ — exceptions. For example, while CR2412 batteries have the expected diameter of 24mm, CR2450 and CR2477 have a diameter of 24.5mm. Go figure… Do a Google search or go to a site such as <a href="https://www.cheap-batteries.com/coin_batttery_chart.html">https://www.cheap-batteries.com/coin_batttery_chart.html</a> to double-check the dimensions of your batteries!</p><p><strong>Update 1/2/2022: </strong>Several comments indicated that the clasp didn't work well for some. The new version has a different clasp design. The old version is still available for those who prefer it.</p><p><strong>Update 4/12/2021: </strong>Thanks to @wolph for his suggestion to use a cube_fillet function, which I added to the OpenSCAD code, to generate rounded edges. Images are still from my original version.</p><h4>Print instructions:</h4><p>0.2 or less layer height. No supports needed (unless you're printing the key tab version).</p><p>The hinge for this box is print-in-place. I used a 0.2mm clearance which should be fine for most well-calibrated printers. The first time you move the hinge may require a bit of pressure. Repeatedly opening and closing the box will make the hinge movement smoother.&nbsp;</p><p>Same goes for the clasp, which may be a bit hard to open the first couple of times.</p><p>Like all print-in-place models, you may find that for your particular printer the clearance may be too high or too low (part of the hinge fused together). Alas, different printers have different tolerances, so there's no surefire way to ensure a model is working everywhere. &nbsp;If you have issues, you may want to try and scale the model slightly, say to 103% or so, to create more clearance. Or use sandpaper/dremel.</p><h4>If you like what I'm doing…<br>&nbsp;</h4><p>…consider <a href="https://www.buymeacoffee.com/mix579">buying me a coffee</a>.</p><figure class="image image-style-align-left"><img src="https://media.prusaprinters.org/media/prints/63026/rich_content/349fbae6-5591-48f2-8bef-b1cd44426fa0/orange_img.webp#%7B%22uuid%22%3A%229fbc37f0-ba30-4be1-9456-779cf4c17cca%22%2C%22w%22%3A170%2C%22h%22%3A37%7D"></figure>