I wrote a 3-axis CNC simulator using a new algorithm and published it as Open-Source. See https:/camotics.org/ More recently I created an S-curve path planner for CNCs. Also Open-Source.
Ask HN: What's the hardest problem you've ever solved?
51–60 of 441 posts
Re: Ask HN: What's the hardest problem you've ever solved?
#52Automatically summarising a 550 word article into 2 to 3 lines using machine learning. Tried many libraries and eve saas solutions like monkeylearn, etx but couldn't do it to what was required. Had to switched to a mechanical turk like solution in the end :/
This could be the summary of 90% of the "AI" startups these days.
Re: Ask HN: What's the hardest problem you've ever solved?
#53Fixing a SRAM 11 speed GX rear shifter on my mountain bike. I was on a downhill MTB holiday and fell off, snapping the thumb trigger on my rear gear shifter.
Replacing the shifter is usually like a £30 part, but I was in an alpine resort in summer so the shops that stocked them were charging nearly £100!
I had my tools and some super glue so sat down to repair it. The snapped part fixed in two minutes but getting that part in place required the complete disassembly of the internal mechanics of the shifter which was all tensioned with multiple hidden springs, the internals literally burst apart half way through carefully taking it apart.
We had no instructions, no YouTube video (since it is usually cheap enough just to swap out) and no diagrams. It took me and a random guy staying in the chalet 3.5 hours to put it back together, we essentially had to spread everything out and think from first principles of how a shifter works, the specific features of that shifter (rapid fire, mutiple down shifts with one leave arch) and build up how those peices would match how it operates.
Must have been 30 part, all small and all tensioned with three(?) springs.
6 months later still working fine but man did we get a mental workout that day.
Next day I had to fix my 3 axis gimbal but that was a lot easier.
Re: Ask HN: What's the hardest problem you've ever solved?
#54Editing a Minecraft save with sh and dd to resurrect my girlfriend's wolf.
Re: Ask HN: What's the hardest problem you've ever solved?
#55I went from a software engineer to starting my own CBD company. Most of what I do is sales now. Making the transition has been very difficult. It's a completely different world.
Re: Ask HN: What's the hardest problem you've ever solved?
#56Depression
Re: Ask HN: What's the hardest problem you've ever solved?
#57I went from a software engineer to starting my own CBD company. Most of what I do is sales now. Making the transition has been very difficult. It's a completely different world.
can you share a link to your site?
Re: Ask HN: What's the hardest problem you've ever solved?
#58Automatically summarising a 550 word article into 2 to 3 lines using machine learning. Tried many libraries and eve saas solutions like monkeylearn, etx but couldn't do it to what was required. Had to switched to a mechanical turk like solution in the end :/
Maybe I'm just naive thinking it could work, but have you tried /u/autotldr?
Re: Ask HN: What's the hardest problem you've ever solved?
#59ICOs and DAOs both present difficult legal problems vis-a-vis the SEC and securities laws. Where others have failed we believe we have developed a legal framework for both a non security/unregistered ICO and legal DOA. To legitimize our legal position we submitted a No Action Letter to the SEC. Uniquely this is not just another legal article/arguement, because the SEC will not respond to a hypothetical No Action Lett…
I am interested, my email is in my profile if you would prefer to send the links that way.
Sent. Thanks we understand it’s extremely easy to blow off an idea that sounds like “legit ICO” especially when the SEC warns to look out for that language.
If you don’t find all the law to boring and get through it we would love feedback and/or questions.
Re: Ask HN: What's the hardest problem you've ever solved?
#60I was working on a calendaring system. We supported recurring events, and each event could also have a piece of equipment associated with it (one or more). Events could also be changed, either the current event or this and every event. Event start/stop times were stored in UTC, but the event was displayed in the users timezone, and could cross daylight savings time boundaries. This was done with a mix of javascript o…
How did you handle the database storage for recurring events? Did you have just one entry that represents the recurring event as a abstract whole, or a database entry for each instance of the recurring event? The former seems "better", but you also run into a whole lot of complications: 1) The user can delete specific instances of a recurring event. Eg: delete the event for thanksgiving Thursday but leave it intact f…
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