[HN Gopher] Fractal Vise
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       Fractal Vise
        
       Author : mattlondon
       Score  : 31 points
       Date   : 2023-07-09 19:48 UTC (3 hours ago)
        
 (HTM) web link (airgraver.com)
 (TXT) w3m dump (airgraver.com)
        
       | sleepybrett wrote:
       | adam savage just bought a new one from alibaba:
       | https://www.youtube.com/watch?v=NUhrF0xkhhc
        
       | hammock wrote:
       | It's like the gator grip socket wrench
       | https://www.google.com/search?client=safari&hl=en-us&sxsrf=A...
        
       | RicoElectrico wrote:
       | Honestly for me it falls into "generates a lot of YouTube
       | content, but is of dubious practicality" category. Tesla valve
       | also belongs there. Can someone give other examples?
        
         | [deleted]
        
         | slang800 wrote:
         | Prince Rupert's drop is another.
        
         | explaininjs wrote:
         | Haskell. (as someone with published Haskell-based research
         | papers)
        
       | kveykva wrote:
       | Ironic that the video of the vise is recorded handheld it seems
        
       | nine_k wrote:
       | Not entirely fractal, just third-order! Fourth-order would likely
       | not be sturdy enough though.
       | 
       | But cool, while also practical.
        
       | andybak wrote:
       | Today at the age of 52 I learned that Americans spell "vice"
       | differently.
        
       | mdorazio wrote:
       | Does anyone know how the dovetails of the individual jaw pieces
       | are machined on a curved surface? I can't figure it out even
       | using a 4 or 5 axis CNC.
        
         | mitthrowaway2 wrote:
         | I must be missing the difficulty. It looks to me like you could
         | turn those dovetails on a lathe. You cut them into round stock
         | before sawing it in half and facing. The female dovetails are
         | done directly on the OD of the round stock. For the male
         | dovetails, it would require mounting the work offset (eg. on a
         | faceplate); alternatively, you could do it more awkwardly on a
         | mill with the tool offset in the spindle like a boring bar.
         | Either way, it could be done with manual machines.
        
         | xtagon wrote:
         | I don't actually know, but maybe electric discharge machining?
        
       | exabrial wrote:
       | This is the stuff the patent system is _supposed_ to protect
        
         | Trellmor wrote:
         | Maybe in 1912 https://patents.google.com/patent/US1059545
        
       | causality0 wrote:
       | How is this "patent pending" when fractal vises have been made
       | for decades?
       | 
       | https://www.youtube.com/watch?v=QBeOgGt_oWU
        
         | nine_k wrote:
         | A special small variation can be as well covered by a patent,
         | because it can make all the difference.
         | 
         | See e.g. Phillips screws vs Posidriv screws (cut the tip), or,
         | more prominently, a normal needle vs the Singer sewing-machine
         | needle (move the eye).
        
           | NegativeLatency wrote:
           | Or even more egregious: the patent game being played with
           | insulin https://www.vox.com/2019/4/3/18293950/why-is-insulin-
           | so-expe...
        
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       (page generated 2023-07-09 23:00 UTC)