Printable Travel Ukulele v000 (work in progress)

I started playing the ukulele almost a year ago after receiving one as a Father's Day gift.  About a month ago I found Daniel Hulbert's website and was inspired by his fantastic designs for portable travel ukuleles to start work on my own.  (Links below)  Combined with the “fret finder” calculator from Aaron Spike, I started sketching out the design here.

My goal is to print this in sections that will slot together (possibly with a hinge mechanism to allow it to be folded) so I can print it on my small printbed.  To improve sound in absence of a resonance chamber, I'm planning to lasercut a back plate that can be bolted onto the body of the ukulele with four M3 nuts and M3x16 bolts.  I've included an SVG, DXF, and STL for this part in case someone wants to try this as well.  The hardware I used for measurements is this set from Amazon (https://amzn.to/3x2Ym4O) recommended to me by @MattStultz many years ago.  The design contemplates a 12.01mm wooden dowel for use as the turn with.  I'm planning on designing some 3D printed “pulleys” to help guide the ukulele strings and keep them from travelling during play.

Right now the “fret markers” are just holes in the fretboard and to either side of the fretboard.  But they're slightly larger than 1.75mm - in the hopes I can use little bits of different colored filament as fret markers!

I've designed the nut and bridge so they can be removed/replaced.  In the horrible rat's nest of OpenSCAD code I've written, there's an option to make the bridge and nut higher or shorter.  If these work reasonably well, I'll work on making them better.  But, for now, I just wanted to publish SOMETHING to share.  :)

If you print this, please drop me a line here or on twitter @makerblock with any feedback.  

Daniel Hulbert website / YouTube channel

https://www.youtube.com/user/CircuitsAndStrings
https://circuitsandstrings.wordpress.com/2015/06/09/building-a-travel-ukulele/
https://circuitsandstrings.wordpress.com/2015/11/16/backpacker-travel-ukulele/
https://circuitsandstrings.files.wordpress.com/2015/06/concert-travel-ukulele-template1.pdf

Aaron Spike's 

https://www.ekips.org/tools/guitar/fretfind2d/
https://www.ekips.org/tools/guitar/originaltools/newFretfind.html