Spike Collar

thingiverse

I'm attempting to recreate an old-school spike collar that I came across, and it's likely just as effective as the original. It utilizes the locks found in the link below, which requires two to secure in place. If more time was spent on it, I could have eliminated one lock, but due to my limited skill and time constraints, I opted for a symmetrical design. This project requires a significant amount of printing, but it produces an effective toy. To complete it, you'll need to print 2 x top files (4 total), 2 x inside keyhole parts, 6 x inside screw hole components, 4 x middle pieces, and numerous spikes. You can also create your own spike templates to help resize them. The assembly requires a few screws and nuts, which can be obtained locally at the hardware store. Some minor sanding may be necessary, and you'll need to use a Dremel to cut or smooth out the spikes in the keyholes. Alternatively, you could remove the spikes from the STL file before printing. I found it easier to do the former. I used graduated infill in Cura for the top parts, which helped improve their structural integrity. However, the tabs are not particularly robust and may require higher infill to prevent them from breaking off during use. Fortunately, all components can be printed without support, and some hot melt glue will come in handy when securing the spikes in place. You can find the required locks on Amazon at: https://www.amazon.com/gp/product/B01MEHVFJB/