Re: ODST build with EVA foam
FoxtrotZero Hahah! Hopefully others will agree, because I'm hoping it'll be a sellable kit so I can recoup some of the crazy expenses I'm foreseeing. I have some reasonable experience in electronics, been building stuff since I was a little kid, and have a degree in physics, so I'll be pretty disappointed in myself if I can't pull it off. Lol.
But really, the only difficult part is acquiring and possibly running the ammo counter screen. From the images I have, it looks like a very flat OLED screen rather than a recessed LCD display. Which is fine, because OLEDs are easier to find and perform better in daylight, but it may still take a while to find one of the right size that I can sort of fudge it- I've just been Googling, and it looks like a custom trapezoidal display is just a no-go. Refreshing a micro OLED screen probably involves sending serial pixel scan data to the buffer, rather than having a nice built-in driver that I can just send images to from an SD card database. The latter would be preferable though, if I can find one with an appropriate aspect ratio.
I'm hoping I can get away with Arduino Nanos for this build, because the barrel jacket is the ideal place to put it/them. Hopefully just one to keep costs low, but maybe two if the library/codebase for running that screen is too big to coexist in program flash memory on a single Nano. Fortunately, the rear of the stock is pretty massive, so if I have to upgrade to an Uno or Mega, there's plenty of room there, I believe (I haven't measured the space behind the mag well though, technically, but my Uno is tiny).
The trigger, safety, charging lever and magazine are all simple springs and magnets and switches, so no issues there.
The scope could use something like this:
https://www.sparkfun.com/products/11676 - combined with a Nano to run it from a camera board behind a custom lens setup. 128x128px resolution would be pretty straightforward to deal with, I think, and it has all kinds of handy features on the baseboard. That's probably approaching $100 for the scope electronics alone, but it could be spectacular- especially if I used an IR camera or something. All that plus a little lithium battery should fit inside the scope no problem.
I'm just one of those people where "it looks more or less right" doesn't even begin to cut it. Hopefully I can do myself justice, but it seems to be going well thus far. The attention to detail required is insane, it's hard to keep track.
And hey, if you need help "funning up" your DMR build, feel free to hit me up.