Parametric headset spacers for bicycle threadless headsets

thingiverse

**Update 9 Jan 2020:** Special thanks to [zachariazh](https://www.thingiverse.com/zachariazh/about) for pointing out that you can pay nearly 20€ for what is essentially the same exact product from [Extralite](https://www.extralite.com/), the Italian manufacturer of super lightweight weight weenie parts. The only thing you won't get with my design is the "Extralite" logo printed on the side. Considering their scale photos compared to mine, I thought about adding an "Extraliter" logo but that might be a bit excessive.\r\n\r\nThere are plenty of headset spacers here on Thingiverse, probably because a headset spacer is basically a simple hollow cylinder. Not the most complicated design to create.\r\n\r\nWhat makes mine stand out? Not a whole lot, but I do offer several varieties in addition to the basic simple spacer:\r\n\r\n* Hourglass spacer\r\n Thicker at both ends, thinner in the middle. Results in the lightest spacer which is perfect for weight weenies amongst us.\r\n* Rounded hourglass spacer\r\n Similar to the hourglass spacer, but narrower in the center, taking a nice smooth curve from top to bottom.\r\n* Internally butted spacer\r\n Similar to the hourglass spacer, but the butting happens on the inside. Looks more conventional from the outside but is still ridiculously light.\r\n* S-Works clone spacer\r\n A clone of the carbon fiber spacers that came on my Epic, featuring a simple splined design.\r\n* Simple straight spacer\r\n Because why not?\r\n\r\nThe design is parametric, allowing you to import the F3D file into Fusion 360 and update any user parameters to regenerate all the spacers. The best approach here is to know how many spacers you need and print one spacer of the appropriate height, rather than stacking spacers to get that height.\r\n\r\nTwo other cool designs worth checking out:\r\n\r\n* T70E's innovative "wave" headset spacers: https://www.thingiverse.com/thing:2514543\r\n* FooFighter's adjustable headset spacers: https://www.thingiverse.com/thing:1640992