[sudo-discuss] Rapping about wood

Captain Chesapeake daro120sudo at gmail.com
Thu Apr 12 08:01:44 PDT 2018


Ooooo yea. Great stackexchange post. Egg crate idea is a step in the right direction too, hadn’t thought about building my own reflector. Also could just spraypaint the LED end of the box white. Brightness is a key goal of mine. Collimating lenses are not a cost effective way of evening light.

> On Apr 11, 2018, at 2:21 PM, hol at gaskill.com wrote:
> 
> hmm I almost want to spraypaint some egg crates silver for the lens array.  sounds cool, keep us posted!  you could take white pegboard to give you your grid and then comb some 1/4" plywood to form the cell grid: https://woodworking.stackexchange.com/questions/3046/build-a-grid-out-of-vertical-thin-wood-bars
> 
> I imagine Jake could help you CNC drill holes in blank plywood with the robot and I would happily bring a 6pack and watch.
> 
>> On 2018-04-11 12:09, Captain Chesapeake wrote:
>> Hey thanks for the suggestion. I’m actually thinking of building
>> essentially a small light box for each “pixel” with a white opaque
>> screen at the opening and addressable RGB led at other end. Goal is to
>> create the box long enough or with a collimating lens so that the
>> light is almost parallel when it hits the screen. This way it has a
>> luscious even glow at the screen. So it’s actually a matrix of 10x30
>> cells, 4”x4” by 3-6” deep each.
>> Trying to optimize weight/strength and also engineer the right fasteners for it.
>>>> On Apr 11, 2018, at 9:02 AM, hol at gaskill.com wrote:
>>>> not the question you're asking but one idea I thought of for supporting small diameter LED matrix is just using pegboard.  you can manually drill out the holes to a larger diameter if needed
>>>> On 2018-04-10 18:40, Captain Chesapeake wrote:
>>>> Hi all,
>>>> Are there are woodworkers in the house? I have some questions about a
>>>> wooden frame I’d like to build for a large illuminated matrix. I have
>>>> some basic questions about types of wood and CAD software for working
>>>> in wood.
>>>> Anybody out there? Thanks.
>>>> The Cap’n
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