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Have you ever hurt yourself from your own code?

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Re: Have you ever hurt yourself from your own code?

#301

Post by akiselev »

ArchOversight wrote: post #294
akiselev wrote: post #288

Earlier quoted context omitted.

Another awesome safety system is the SawStop which uses the conductivity of skin to monitor for contact against the blade in a tablesaw. If it detects contact a small explosive charge goes off, instantly sending a block of aluminum into the path of the blade, stopping it dead. Even a serious accident like leaning with an elbow against a moving blade is likely to result in little more than the scratch from hitting a s…

The biggest problem with the saw stop is that wood when it is even slightly moist can set it off. So on a worksite if you are using lumber that hasn't had adequate time to dry the saw stop would trip even without any limbs being in danger. Each time it would destroy itself, you would have to take the saw apart and change it which would cause a work stoppage. What irks me the most is that the SawStop owner tried to cr…

Do you know what moisture level sets it off? I didn't even think about that - it's easy to take Southern California's weather for granted. Here it's either pretty much ready from the lumberyard or you got it right off the mill's truck so it has to sit for a few days/weeks.

The lobbying is off putting, yes, but at least his greedy self-interest would do some actual good instead of extracting evermore capital from everyone. Powertools inhabit this uncanny valley of dangerous equipment where they're cheap and accessible enough to the average joe (compared to CNC machining centers or forklifts or whatever) yet powerful enough to do some real damage. My understanding is that the primary reason the major manufacturers didn't want the SawStop wasn't cost but the fear that it would expose them to more liability by making the tools seem less dangerous. I really wish it achieves mass adoption so that the price drops even further.

Re: Have you ever hurt yourself from your own code?

#302

Post by xnx »

ghostpepper wrote: post #5

A few years ago, I ordered the cheapest six-axis robotic arm from ebay for about $100 that came with basically no software or motor-driver boards, so I did it all from scratch with a PCA9685 board, a basic kernel driver and some very hacky scripts from user space. One day I had some friends over for a glass of wine, and wanted to show off my creation. I invited them into my "lab" and placed my wine glass down on the…

> I learned a valuable lesson about the difference between messing around with hardware vs software.

Tesla Autopilot developers should read this.

Re: Have you ever hurt yourself from your own code?

#303

Post by blablabla123 »

cedricd wrote: post #270
blablabla123 wrote: post #269

Earlier quoted context omitted.

> why don't you head on home for the day and I'll call you there? As non-native English speaker this expression really puzzles me.

In other words: please go home and I'll call you. 'Head on home' is a real expression. Similar ones are 'head over there', 'head to ...', all of which just mean 'go to'.

I mean more the "Why don't you ..." It's quite obvious that it's rethorical but it seems so nonsensical to put this into a question while camouflaging what is really going on.

Re: Have you ever hurt yourself from your own code?

#304

Post by VLM »

akiselev wrote: post #301
ArchOversight wrote: post #294

Earlier quoted context omitted.

The biggest problem with the saw stop is that wood when it is even slightly moist can set it off. So on a worksite if you are using lumber that hasn't had adequate time to dry the saw stop would trip even without any limbs being in danger. Each time it would destroy itself, you would have to take the saw apart and change it which would cause a work stoppage. What irks me the most is that the SawStop owner tried to cr…

Do you know what moisture level sets it off? I didn't even think about that - it's easy to take Southern California's weather for granted. Here it's either pretty much ready from the lumberyard or you got it right off the mill's truck so it has to sit for a few days/weeks. The lobbying is off putting, yes, but at least his greedy self-interest would do some actual good instead of extracting evermore capital from ever…

Thankfully the patents are starting to expire in 2024. Nothing holds pack progress quite like the patent system.

The problem with causing $300 of destruction and lost work time vs possibly saving a limb is there's no fine woodworking operation or framing carpentry operation that requires a table saw. Technically if you feel unsafe working with a table saw you can do absolutely everything very slowly and tediously with a router or router table or bandsaw, or manual tools like a chisel and hammer. Anyone concerned about safety doesn't use a saw stop, they use an entirely different technology than a table saw. If you make a table saw too safe or too expensive to actually use, people will simply use something else. The death toll may or may not be lower...

From a marketing perspective, the people most likely to buy a saw stop because they're scared of table saws will save a lot of money by not buying either sawstop or table saw, and they'll cut dado slots using a hand held router (more dangerous in a different way) or break down plywood using a tracksaw (unholy expensive and many crushed foot injuries) or cut beveled edges on a router table or zillions of alternatives. Meanwhile the people who don't care about safety because they're not drinking on the job or they actually use the substantial amount of safety gear that makes a table saw perfectly safe OR they only do operations on the table saw that are inherently safe by nature (as opposed to relatively low risk operations, and some very high risk operations that people do anyway), will continue to save a lot of money by the combo of not being dumb and not buying sawstop. Finally the real dumb woodworkers who get drunk and get hurt or simply don't care, will continue to not care and not buy sawstop and will not live too much longer in a world either with sawstop or without table saws anyway, so its not like the world will net improve, the Darwin award winners will continue to win Darwin awards. So sawstop is a VERY hard sell.

A similar problem is well manufactured table saws are safer than homemade table saws. The concept of "put a round blade on a motor" is too simple to legislate out of existence. So making table saws illegal wouldn't eliminate table saws it would just mean the homemade ones will make table saws, on average, more dangerous.

Arguably, radial arm saws are more dangerous than table saws and "the marketplace" effectively eliminated those decades ago, so its not like the marketplace dislikes safety or whatever.

Re: Have you ever hurt yourself from your own code?

#305

Post by TheSpiceIsLife »

namibj wrote: post #202
TheSpiceIsLife wrote: post #184

Earlier quoted context omitted.

Dear Lord please do not put 300Nm on your wheel nuts. They're supposed to tentioned correctly with a torque wrench, usually between about 110 and 120Nm. Edit to add a reference, just random from a search: https://www.barum-tyres.com/car/expert-advice/safety-driving...

I think parent was referring to taking wheels off, not torquing the nuts. And for that purpose, it does seem appropriate.

On second reading I see you may be right.

However my point still stands, somewhat: if 300Nm is insufficient to undo your wheelnuts, they're way too tight.

Re: Have you ever hurt yourself from your own code?

#306

Post by gknoy »

VLM wrote: post #304
akiselev wrote: post #301

Earlier quoted context omitted.

Do you know what moisture level sets it off? I didn't even think about that - it's easy to take Southern California's weather for granted. Here it's either pretty much ready from the lumberyard or you got it right off the mill's truck so it has to sit for a few days/weeks. The lobbying is off putting, yes, but at least his greedy self-interest would do some actual good instead of extracting evermore capital from ever…

Thankfully the patents are starting to expire in 2024. Nothing holds pack progress quite like the patent system. The problem with causing $300 of destruction and lost work time vs possibly saving a limb is there's no fine woodworking operation or framing carpentry operation that requires a table saw. Technically if you feel unsafe working with a table saw you can do absolutely everything very slowly and tediously wit…

  > Meanwhile the people who don't care about safety because
  > they're [never doing unsafe things]
This sounds an awful lot like suggesting that skilled users of firearms don't care at all about safety because no one's going to deliberately do stupid stuff. It seems farcical to me. Just as with firearm safety rules, they're there to protect people from the rare moments when we are inadvertently NOT careful. History has shown that people DO do stupid stuff because they were thinking about something else, or were tired, or distracted -- hence why every firearm is treated as loaded, even if you unloaded it, and why weapon safeties exist.

For table saws, having a sawstop helps prevent situations that you don't have fill control over from having bad consequences. Of course you'd still use all the same safety measures you normally would without one.

Re: Have you ever hurt yourself from your own code?

#307

Post by ArchOversight »

akiselev wrote: post #301
ArchOversight wrote: post #294

Earlier quoted context omitted.

The biggest problem with the saw stop is that wood when it is even slightly moist can set it off. So on a worksite if you are using lumber that hasn't had adequate time to dry the saw stop would trip even without any limbs being in danger. Each time it would destroy itself, you would have to take the saw apart and change it which would cause a work stoppage. What irks me the most is that the SawStop owner tried to cr…

Do you know what moisture level sets it off? I didn't even think about that - it's easy to take Southern California's weather for granted. Here it's either pretty much ready from the lumberyard or you got it right off the mill's truck so it has to sit for a few days/weeks. The lobbying is off putting, yes, but at least his greedy self-interest would do some actual good instead of extracting evermore capital from ever…

I have no idea on the moisture levels that cause it to be set off, I just remember reading/watching a video about it because at first it seemed like technology that SHOULD be widely used and implemented. When I first learned about it I thought it was a great idea.

Re: Have you ever hurt yourself from your own code?

#310

Post by ArchOversight »

richrichardsson wrote: post #205
exikyut wrote: post #192

Earlier quoted context omitted.

A recent Ask HN on favorite purchases had a reasonable subthread on earbuds: https://news.ycombinator.com/item?id=27219759

No one mentions custom ear plugs on that thread. They are pricey, but such a good investment. Way better than anything else I've tried, more comfortable for extended periods of use and most importantly they attenuate the sound fairly evenly across the spectrum. My only advice is to get the string attachment option, so that you can't accidentally lose one of them!

I just got myself a pair of custom earplugs from https://1of1custom.com/ which are absolutely amazing.

I ride a motorcycle and needed something to make sure I don't lose my hearing from the wind noise/exhaust noise (it's stock, but still 85 dB when the throttle is open).

They are also great for concerts and live music events where the speakers are generally cranked up to 90 - 95 dB.

I got the 27 dB version, and it allows me to hear what people are saying above the the music but really cuts out the painful parts.

They are not cheap, but I already have tinnitus, so I want to make sure it doesn't get worse.

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