681–690 of 694 posts
I made a turntable that spins cars around at 12 rpm, which doesn't sound like a lot but when it's your car spinning around at 12 rpm, it's a lot.
What was it for exactly? 5 sec/rotation is a lot of angular velocity.
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would you consider sharing the python code?
Here you go https://gist.github.com/kaspermeerts/781f0137b361b51224dcab7... https://gist.github.com/kaspermeerts/b6f158b1278de307e48a200... Haven't looked at it in five years, but it should probably still work if you update the variables at the top.
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What was it for exactly? 5 sec/rotation is a lot of angular velocity.
It was an imaging system for cars that needed high throughput. Normally you would just have a lot of cameras all around the car, but they were very space constrained so spinning the car was the only way to get all the angles.
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How odd, you dredged up a memory of people finding stairs: https://travelermagazine.net/stairs-in-the-woods/
Is this a ChatCPT written article to sell stuff or for SEO purposes? Definitely seems like it, and actually makes me wonder about the entire parent post.
The site linked looks like one of those stupid content farms that analyzes popular crap on Reddit. The stairs in the woods thing got popular because they are out there, but the is not supernatural - people just abandon or recycle material within structures in remote places if it no longer suits their purpose. Decking and stairs are often made of pressure treated wood which does not burn or decay as quickly and if they are concrete, they most definitely will not decay in a hurry. So once the combustible tinderbox of a log cabin is consumed or is recycled (via dismantling) all that is left is often just stairs.
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It was an imaging system for cars that needed high throughput. Normally you would just have a lot of cameras all around the car, but they were very space constrained so spinning the car was the only way to get all the angles.
Just sitting here in my armchair - wouldn't it be easier to rotate a camera around a car?
The "tanks" had shields for front, rear, and each side that took damage separately. A main cannon with switchable weapons did different amounts of damage based on how much energy the weapon used.
Different weapons had different types of simulated kick-back ... the rapid fire machine-gun type weapon had a rapid shaking kick back while the mega-super-weapon was a super whomp kick-back. I don't recall if I got around to implementing physical effects when your tank was hit.
Control was using hacked up thrift store-sourced PC joysticks. (and by hacked-up, I do mean hacked-up. Soldered directly to potentiometers and spliced into a controlling arduino that tracked tank status etc)
All controllers and tanks were mesh-networked using cheap 2.4ghz nrf24L01+ wireless (but not wifi) chips. My idealistic final vision was massive multi-player games with selectable features.
- large games with selectable friendly fire
- different damage consequences
- scrambling opponents weapons or drive systems, drive systems degrading as they took fire, flakey shields
- communicating with a central computer for viewing game progress and tracking stats
- vastly improved system information displays (vs the cheap LCDs)
- fpv camera with a HUD woulda been sooo cool.
I knew it was going to be a huge learning curve - I was familiar with basic arduino functionality but hadn't done much beyond basic sensor reading and light blinking. I had to learn how to integrate a LOT of hardware and deal with real world complications. (sunlight plays merry havoc when using IR as your weapon-shooting and shield-receiving) I started 3-4 months before the presentation date and (of course) was still swapping out hardware and tweaking software the night before.
"trailer": https://www.youtube.com/watch?v=e7uAQrak1iA&ab_channel=Aaron...
presentation notes: https://github.com/adbacker/duinobattletanks/blob/master/doc...
code: https://github.com/adbacker/duinobattletanks/tree/master
I was told the Snoo was the bees knees of baby rockers. Damn it was pricey (1600) bucks. I luckily saw a friend's model in action. Figured it can't be hard to make! Bought myself an Arduino, a stepper motor, a few trips to home depot to get some 2*6s (needed a bit of experimentation here) as a base and a lazy Susan swivel. Voila! Hard work but a lot of fun as I not only had a working rocker (definitely wasn't as pret…
Neat :) A friend used a wiper motor from a 1943 Jeep and a very long piece of string to rock his kids cradle because otherwise he wouldn't sleep.
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You don't need high heat (refractory) mortar for many outdoor fire pits or stoves. It's mandated in many places (and for good reason) for indoor fireplaces, chimneys etc. That's because regular mortar will crack when subjected to roaring fires, and you don't want the heat, fumes or fire itself to escape the chimney. But e.g. for a fire pit it's usually no big deal, as the outside of the pit is presumably soil, or the…
This is true at all. Explosive spalling is a very real thing and you can see many examples of this online. Cracking is a minor manifestation but it can be much more violent. https://www.youtube.com/watch?v=vV0saM5IFwE https://www.youtube.com/watch?v=NxJPX0lssIQ
We're talking about mortar here, not concrete. I.e. the "paste" that's put between bricks and other stone work to "glue" it together.
But of course normal bricks are also subject to spalling, but it's very rare that they'll Gail catastrophically, mostly you'll get a crack or two.
Europe's full of old brick houses that cone chimneys that were made before using specialized materials for them was mandated.
You can safely build such structures, they just require building and usage techniques that go along with them, e.g. using a double layer of brick, or gradually heating up the chimney to get the humidity out of the bricks and mortar.
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Is this a ChatCPT written article to sell stuff or for SEO purposes? Definitely seems like it, and actually makes me wonder about the entire parent post.
I wrote my post with my own two thumbs, thank you. The site linked looks like one of those stupid content farms that analyzes popular crap on Reddit. The stairs in the woods thing got popular because they are out there, but the is not supernatural - people just abandon or recycle material within structures in remote places if it no longer suits their purpose. Decking and stairs are often made of pressure treated wood…
Your post overall was not written in that manner, but the tangent into the stairs thing was unexpected and borderline supernatural, actually would have been an interesting segue into a ghost story.
@influx post is so low effort it's hard to tell if they're the one profiting from the content farm or just posted up the first result he found on a quick google search.