[HN Gopher] Re: Flex Dance: open-source dance pad
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       Re: Flex Dance: open-source dance pad
        
       Author : kadoban
       Score  : 36 points
       Date   : 2020-12-12 18:23 UTC (4 hours ago)
        
 (HTM) web link (reflex.dance)
 (TXT) w3m dump (reflex.dance)
        
       | jfim wrote:
       | Pretty cool project, the LEDs are pretty nice!
       | 
       | In case the author or someone else knowledgeable reads this, is
       | that application for the load cells used for sensing are able to
       | handle? The load cells are rated for 50 kg (~110 lbs), and even
       | if there are four load cells, the dynamic load might not be
       | evenly distributed. It's also likely that the 50 kg limit is a
       | static load, not a dynamic one.
        
         | wiml wrote:
         | The manufacturer's site lists the max load as 150% full scale,
         | so there is a little room there. (And exceeding it probably
         | just makes the cell go out of calibration, which might not be a
         | big deal for a dance pad?)
        
       | chaosharmonic wrote:
       | Oh yeah, this sounds familiar. Was it also on the DDR subreddits
       | a while ago?
       | 
       | I meant to ask the first time I saw it -- if I'm understanding
       | this correctly, the entire frame consists of parts that can be
       | either printed or just sourced off-the-shelf? I've personally had
       | "pad build" on my backlog, and have been playing around with
       | modifications of the Cobalt Flux design on paper ever since a
       | failed attempt to put one on risers (apartment noise issues...),
       | but wood- and/or metalworking have generally been barriers to
       | actual implementation.
       | 
       | Maintaining it up until that point is actually also how I DIY'd
       | my first controller, and finally learned to solder.
       | 
       | (It also just became less of an issue between living in a region
       | with a few different cabinets I could drive to and the L-Tek pad
       | releasing around a year or so later.)
        
       | jwalton wrote:
       | I built something like this a while ago, but mine is not nearly
       | as nice. I etched an interlaced finger pattern on a big copper
       | clad board, then put a tented piece of metal overtop of that,
       | then some lexan sheets with a graphic inbetween them on top, so
       | when you step on the arrow, it squishes the metal plate on to the
       | circuit board and closes the circuit. It works remarkably well.
       | And then the whole thing is powered by an Arduino that pretends
       | to be a keyboard: https://github.com/jwalton/arduino-dancepad
        
       | [deleted]
        
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       (page generated 2020-12-12 23:00 UTC)