Ask HN: What's the coolest physical thing you've made?
91–100 of 694 posts
Re: Ask HN: What's the coolest physical thing you've made?
#92An artificial heart: https://news.ohsu.edu/2018/03/08/have-an-artificial-heart I've also been part of (or lead) the design teams of several LVADS (one of which is in the Smithsonian), a dialysis machine (Outset), a surgical navigation camera for NuVasive, and most recently a couple soft tissue surgical robotics systems. First, Ottava from Auris/Verb/J&J, and most recently the Maestro from Moon Surgical: https://www.m…
Re: Ask HN: What's the coolest physical thing you've made?
#93Does a garden count? In a small, urban plot I grow grapes, tomatoes, strawberries, mint, elderberries, and carrots. A work in progress but I'm building a modular synthesizer. I've built the power supply and have the VCO started on a strip board. Planning on adding some bits to that, making a step sequencer, and some filters.
Re: Ask HN: What's the coolest physical thing you've made?
#94You guessed it, boats. I have built a stitch and glue (plywood) sea kayak[0], an Aleutian-style skin-on-frame sea kayak[1], and a skin-on-frame canoe[2]. All were fairly approachable and straightforward projects (I built the first two with basically some hand tools, a drill and a jig saw, on my deck, but a table saw is highly recommended for skin on frame). Tons of fun and the feeling of being a couple miles offshore…
Also, do you find yourself using one or the other of the boats more or less?
Either way/no matter what, fun to see this answer on HN! Thanks!
Re: Ask HN: What's the coolest physical thing you've made?
#95Two children. Still amazed how they came to be!
Re: Ask HN: What's the coolest physical thing you've made?
#96A few years ago, I launched Bedtime Bulb [0], a light bulb meant to be used before sleep. Since then, my team has reached 10s of thousands of customers, and the reception has been overwhelmingly positive.
It hasn't all been rosy, however. We learned a lot from customers about where the product fell short and what features were missing. We had to pull the product from some markets due to performance issues. We learned the hard way about customs issues, damage in shipping, and much more.
Unfortunately, hardware has long and expensive iteration cycles. But my biggest advice would be to stick with it and continue to learn if you have some feedback from the market that this could be successful. My biggest role models both went through long periods of failure: James Dyson's 5,000+ prototypes and Tony Fadell's years of building ahead-of-their-time products.
And stick with it we did. We are going to release a new version of the bulb in coming months that fix all the issues of the previous product, as well as introduce some new features we think will move the lighting space forward. And we are combining our vision and additional feature requests to release even more advanced products.
Re: Ask HN: What's the coolest physical thing you've made?
#97Re: Ask HN: What's the coolest physical thing you've made?
#98Re: Ask HN: What's the coolest physical thing you've made?
#99I've since moved on from that job, but it's a very cool resume item. It's also a pretty cool shameless self promotion thing to point out when I need to.
Was asked by an executive why I should run a hardware development effort at my current company and my pitch was: "Because I've designed and shipped more circuit boards than everyone else at this 500 person company combined. You probably own some of them." Turns out that said executive just got his new house wired with Sonos Amps.
Since I mostly work from home these days, I've done some fun little projects around radio just to prove that I can. I made a little AM receiver with 74xx series logic inspired by a post I saw on HN, and now I'm working on a digitally tuned FM receiver with a Si5351 as LO and an STM32 as controller/HMI.
Re: Ask HN: What's the coolest physical thing you've made?
#100I bought a house that was sold as "uninhabitable" in Amsterdam, pulled out all the interior walls, applied insulation, then taught my self plumbing and did the plumbing, redid the wiring, installed the gas heater, laid radiant heating. I built new interior walls and did all the interior finishing except for plastering downstairs and pouring cement over the radiant heating, which I had professionals do. Coolest single…
Yes, but now you know how to fully renovate a previously-deemed-uninhabitable house.
Many, especially people that make large $ in tech may disagree, but I find this to be extremely valuable knowledge & experience. Tangent, but I experience second hand humiliation & embarrassment when I see an adult paying hundreds into thousands of dollars for something that can be fixed in well under an hour with basic tools.