A Broken Rice Cooker :-( (3D Printing to the rescue!

Picked up a Tefal rice cooker when living in Australia. They’re superb, reliable and make great cakes

Highly recommend buying one 🙂

Our latching mechanism broke recently, requiring us to jam some weights on top to ensure the lovely cooked rice goodness continued……….

I Gone Dun Fixed it!

I’m getting a little better at Fusion360 now and my work with the C64Mini keyboard taught me enough about surface modelling to knock up this thingy 🙂

The old one’s at the top………the sticky outy bit snapped.

Now, another rabbit hole though……PLA is quite tough

….Until it’s warmed up.

….Rice cookers get a little warm…

It lasted a couple of weeks at least…

Picked up a roll of ABS, first time I’ll be using it, so wish me luck!. Also i’ll redesign those curves just a little better 🙂

Speaker enclosures……A rabbit hole…

Blimey, who’d have thought……

Back in the old days, it was as simple as ‘buy a speaker’ , shove it in a box and voila…….

 

Nowadays though…………

http://audiojudgement.com/types-of-enclosures-which-is-the-best/

There’s quite a few, including the following types…………

  • Sealed enclosure
  • Infinite baffle
  • Open Baffle
  • Free-air
  • Bass reflex
  • Ported
  • Vented
  • Bandpass
  • Transmission Line
  • Folded Horn
  • Isobaric

Each has different properties, suited for different things……some are as easy as ‘shove it in a box’, others need complex enclosure geometry and some math………

Now, considering I have 5 speaker drivers waiting to be hooked up, own two 3D printers (and a CNC), Know a bit about Fusion360 and have a penchant for overthinking and overcomplicating stuff (hey, where’s the fun when it’s simple!?)…..I figured, lets learn a little bit about speaker enclosure design……

Turns out, there’s quite a few youtube videos……….

One in particular from a channel that I’d already subscribed to a few months ago…….HexiBase – Can a 3D printed enclosure Get low

Look at the size of that box!……..It uses a Folded Waveguide type resonance chamber for the enclosure…..which appears very similar in design to a ‘Transmission line’ style of speaker.

….Challenge accepted….I’m going to build a small Transmission line speaker!