INTPs are often very good at tinkering and programming so anything from http://raspberrypi.org will be a winner! They’ve got every budget covered from tiny computers for $5 all the way up to the accessories which can be bought on the websites linked on there that’ll turn your pi into a robot or sensor kit or anything really. Source: 12 months ago

The only thing I can get to boot on any of the 3 boards is the newest pi4 OS image on raspberrypi.org. Source: over 1 year ago

Https://raspberrypi.org lots of FOSS tools and fun projects for beginners. Source: over 1 year ago

Sure. Do what Adafruit, Sparkfun, Pihut, and the others linked from raspberrypi.org do. Source: over 1 year ago

It seems disgusting when you open raspberrypi.org and be presented with slogans like "teach, learn, make" and pictures of kids learning and playing around with the boards when it was obvious what the priority was for the company (spoiler: not those kids in the pictures). Source: over 1 year ago

E.g. What I used before I had my own printer: https://i.materialise.com/en. Source: about 1 year ago

Https://i.materialise.com/en is the service I've used. Upload the stl I make in blender, and it quotes the price. Source: about 1 year ago

Not for the US, no. But a quick search should give you good enough sites e.g. https://i.materialise.com/en. Source: almost 2 years ago

i.materialise.com , I believe the formats used are .OBJ and .WRL. Source: about 2 years ago

I can recommend these guys for printing any material i.materialise. Source: over 2 years ago