@123toid – I hear you there. I remember growing up near compUSA and computer city. I really wish I had a microcenter closer because I would love to go through there (or grab those deep discounts on the ender 3 recently).
And as to designs, just takes time and practice. If needed, I have a friend that does aviation engineering who I can luckily pick his brain at times.
@tvor-ceasar – definitely. Or come up with an attachment for the regular size tweeters so that they screw into a wave guide. But that will take more time to learn to run the simulations on unless I can get very accurate information on curvature, shape, etc. to recreate them. But that does sound like an awesome use. Of course, this printer cannot print out over 9.25″, so that might be better on an Ender 5 Plus or similar printer. But, printing out ABS plastic waveguides sounds like a great use!