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Comment Re:Grey area (Score 4, Insightful) 69

Coincidentally, I design ultrasonic surgical equipment. There's a huge difference between maintenance, field repair, and factory repair. There is no one-size-fits-all solution. Any comparison to fixing your phone or a tractor or planes needs to factor in many things unique to medical equipment

We'd be happy to let hospitals do as much maintenance as possible. We make money with the disposable product used with it. But between having custom power components and surface mount electronics, it's all to likely a repair can make things worse. Sort of like trying to repair a motherboard ... with injury or death possible if you screw it up. Same with modifying software.

Simply put, I design them and even I wouldn't dare repair them. Too risky. There are a few company technicians I might trust, because they build them and have the special test equipment and procedures. They can certify it was done right. But it would never make sense to train and certify a hospital technician. Why spend weeks learning to fix a $5,000 piece of equipment that have a failure rate of 5% over 10 years (and no hazardous failure that I'm aware of).

So we offer cheap/free "repair" service. In reality, we do some testing and replace the faulty subsystem. New motherboard or power supply or LED screen. Or just a whole new unit.

And to anyone who thinks "well, just put a tamper seal": that's not going to protect the manufacturer from a lawsuit. Lawyers sue everyone with deep pockets in any way affiliated with an injury or death regardless of cause. Totally innocent companies will still pay tens of thousands of dollars in settlement to avoid legal bills 10X as much. And if they go to trial, juries often will still give the plaintiff money because, hey, the company can afford it and these people deserve something.

So medical device companies figure "Screw That!" and avoid putting their fate in the hands of some hospital technician, no matter how competent.

Comment Re:Someone needs to explain... (Score 2) 223

Let me explain a little bit about the birds and the bees, since you seem to have gaps in your knowledge. You do realize that potatoes are rarely propagated from actual seeds, don't you? There is no cross pollination. They are called seed potatoes not because they are seeds, but because they are potatoes used as seeds. They are clones of the original potato plant.

https://garden.org/courseweb/c...

Comment Re:None. (Score 3, Informative) 165

Depending on the type of part, FDM can work. Many of the Technic parts are functional from FDM. I've had good luck making custom gears. For holes, you make them a bit undersized, then drill or ream them. Shaft splines tend to be forgiving. The teeth aren't too bad.

It's making parts that will snap together that gets sketchy.

Comment Re:Archimedes had calculus (Score 4, Interesting) 153

It was more than that, and he did have an inkling of the use. But he treated it as academic. In college, we had to study his technique for integrating the area under a curve. Specifically, the area of a spiral. And he got it right. We even applied it to other geometry with success.

What made it painful was that it was done without algebra or even the symbol pi. Think long wordy descriptions involving limits and ratios and you end up with 3 pages of text for what takes half a line in modern notation. Heck, even his result takes a couple lines to write.

Comment Re:Just have medicare for all and get rid of the o (Score 1) 285

I've supported the idea of something like the UK system for years. But people in the USA will need to get over a few things first. The biggest preconception people have is that under single payer, they will get the same treatment, but for free.

Unfortunately, we insist on deluxe treatment (under threat of malpractice lawsuit for not providing the best care possible). That's not going to be easy for people to give up. Free, they can get behind. Not getting the nice bed in a private room, not so much.

I try to explain to people that basic free healthcare is cheap and attainable. But any universal healthcare is not going to be healthcare like they imagine. Go for it, but with open eyes.

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