Car radio antenna ^^ / M5 spacer

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Summary Last week, I headed out to a car wash but neglected to remove my radio antenna, which promptly broke down. The repair bill for the antenna was £5, so I decided to take matters into my own hands and try making my own antenna. I picked up a metre of M5 threaded rod and divided it into four pieces - that way, I'd have some spares on hand for the next time it happened. When I connected the rod to my radio, it worked beautifully once again; although, the makeshift setup looked pretty rough. So, I figured it was high time to create something a bit more aesthetically pleasing. Next up, I crafted a pipe (with an inner diameter of 4.6mm and an outer diameter of 5.4mm) using SolidWorks. Then, I started experimenting with Slic3r's spiral vase settings. After some trial and error, I finally managed to find the right settings to make the female M5 thread fit snugly over my rod. The settings I employed included: - Nozzle size: 0.8 (my nozzle is actually a bit smaller at 0.4, but that's the only way I could achieve a layer thickness of 0.75) - Layer thickness: 0.75 - Speed: very low (7mm/s) - Perimeters: 1 - Fan speed: a constant 70% And for material settings: - Filament diameter: 1.75 - Extrusion multiplier: 2.21, as I needed at least double the amount of material to compensate for the layer thickness and width I was aiming for. To get the object to fit my M5 threaded rod, I scaled it up to 144% normal size in the end. The result? A "female" M5 threaded-rod that worked a treat. And to prove that my setup wasn't one-off, I also printed the "male" M5 threaded-rod by scaling my pipe down to 61%, and it worked beautifully too.