Difference between revisions of "Project Straylight"
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We can get 3x6' 6mm/.25" acrylic for $110 locally. Need to price a piece of similar sized tempered glass (with at least one top and one side edge polished so it can be edge lit) . Not married to the size, but approximately this ratio and probably not smaller than 3x5' or larger than 4x8'. It would be great to find a readily available piece, either something kept stocked or a frameless shower door that wouldn't break the budget. | We can get 3x6' 6mm/.25" acrylic for $110 locally. Need to price a piece of similar sized tempered glass (with at least one top and one side edge polished so it can be edge lit) . Not married to the size, but approximately this ratio and probably not smaller than 3x5' or larger than 4x8'. It would be great to find a readily available piece, either something kept stocked or a frameless shower door that wouldn't break the budget. | ||
=== Pros/Cons === | |||
Acrylic will be lighter (and maybe cheaper), but prone to scratching and harder to clean. Risk that some markers might have chemicals that can etch the surface. Glass is heavier, some greater risk of breaking in transport, but won't flex or scratch. | Acrylic will be lighter (and maybe cheaper), but prone to scratching and harder to clean. Risk that some markers might have chemicals that can etch the surface. Glass is heavier, some greater risk of breaking in transport, but won't flex or scratch. | ||
Revision as of 19:16, 28 January 2015
Basics
We have a $500 Budget (funded!) to build an educational project to display and demo at the upcoming EDExpo (late February)
Plan
Build a portable, RaspberryPi based Lightboard for recording lessons/lectures/demos. A lightboard allows the instructor to write on a whiteboard in front of them while facing the camera. See: Northwestern Lightboard for examples
Status
Randy has RasPis, a Wolfson Audio board (use or not for audio input?), RasPi camera, a ton of 25mm black anodized aluminum extrusion.
Steven is in charge of the LED edge lighting. We'll need to do some back and side lighting of the subject too.
DMM is looking at an open stack for video switching
Needs
the glass/acrylic
We can get 3x6' 6mm/.25" acrylic for $110 locally. Need to price a piece of similar sized tempered glass (with at least one top and one side edge polished so it can be edge lit) . Not married to the size, but approximately this ratio and probably not smaller than 3x5' or larger than 4x8'. It would be great to find a readily available piece, either something kept stocked or a frameless shower door that wouldn't break the budget.
Pros/Cons
Acrylic will be lighter (and maybe cheaper), but prone to scratching and harder to clean. Risk that some markers might have chemicals that can etch the surface. Glass is heavier, some greater risk of breaking in transport, but won't flex or scratch.