projects:glass_sphere:housing
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projects:glass_sphere:housing [2019/01/05 06:05] – tjhowse | projects:glass_sphere:housing [2019/02/24 22:54] (current) – tjhowse | ||
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====== Material selection ====== | ====== Material selection ====== | ||
- | == Glass == | + | === Glass === |
- | Glass is pretty good. When tempered and treated it's pretty shock-resistant, | + | Glass is pretty good. When tempered and treated it's pretty shock-resistant, |
- | = Toughening | + | == Sourcing == |
- | Tempering | + | For my initial experiments I want to use recycled |
+ | * Removing the silvering on the mirrors, | ||
+ | * Blown versus float glass, | ||
+ | * Smashing the glass into frit, | ||
+ | * Particle size, | ||
+ | * Wash versus non-wash. | ||
+ | * Fusing the glass into solid chunks. | ||
+ | * Temperature profile, | ||
+ | * Flux. | ||
+ | |||
+ | == Toughening == | ||
+ | Tempering glass makes it strong. I've done this already on the leaf-in-glass project. Also soaking in molten potassium nitrate at 300 degrees for a while. This [[https:// | ||
+ | |||
+ | ====== Geometry ====== | ||
+ | == Overall == | ||
+ | I think the most robust shape would be a sphere. Every other shape has points or edges that would lead to higher peak stress when dropped. | ||
+ | |||
+ | == Assembly == | ||
+ | It's gotta have a hollow bit in the middle for the electronics, | ||
+ | |||
+ | {{: | ||
+ | |||
+ | == Joining == | ||
+ | The join will be the weak part. I would like to fuse the two bits of glass into one, however that would require around 800 degrees celsius, which would destroy the electronics. | ||
+ | |||
+ | My current plan is to lap the two joining surfaces very very smooth and [[https:// | ||
====== Shielding ====== | ====== Shielding ====== | ||
Some of the cooler options for electronics inside the sphere require microcontrollers and flash storage, which would have their effective lives extended with some radiation shielding. I'll use a leaded potting compound (if it exists), or lead sheets wrapped around the electronics. | Some of the cooler options for electronics inside the sphere require microcontrollers and flash storage, which would have their effective lives extended with some radiation shielding. I'll use a leaded potting compound (if it exists), or lead sheets wrapped around the electronics. |
projects/glass_sphere/housing.1546668343.txt.gz · Last modified: 2019/01/05 06:05 by tjhowse