About This File
My take on oil seal surrounds and hemispheres... I'm not sure these are practical as it takes an hour to print a surround and a couple for a hemisphere, but here they are...
The reason I did this was because brialath has talked about a Disco Dalek and I wanted to see if WS2812B LEDs would be able to light a 100mm hemisphere. Since I made the hemisphere, I decided a mount for the aforementioned LEDs built into the surround might be good, and the traditional center bolt doesn't really work because the LED needs to be there.
Since I could I also made a solid hemisphere that might print better, and a surround with a centered bolt hole for an M4 bolt, and a little block to keep the bolt head from turning. I considered glynharper's surrounds, however I wanted an exact fit for the hemisphere I'd made, and I wanted a enough room for a 12-14mm washer to distribute the load. So that meant I needed a block to hold the M4 bolt head, the recessed version wouldn't work. Also, of course I needed a version with a spot for the LED in the middle.
The surrounds are intended to fit exactly in the middle of the hemisphere. They probably need some sort of adhesive, but for my printer it was a really close fit.
Since normal humans could reuse these for xmas ornaments or something, I put them on Thingiverse, with more info... http://www.thingiverse.com/thing:726897 (including the openscad & sketchup files for them).
What's New in Version 1 See changelog
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