I printed this one in black Hatchbox PLA. Most of the hardware came from McMaster Carr. Tuning system and strings were ordered from Amazon. This is a really cool project and I highly recommend it. Total cost was around $120 mainly due to shipping costs of the hardware, but now I have some extra M5 screws for my next project.
Only a couple things I did differently- my MakeSelecf V2 seems to do a better job if I use a brim, so I printed with a small one to be sure the parts didn’t come unstuck while printing. Also, the cheap bass guitar tuners I bought didn’t quite line up with the tiny holes but since it’s just plastic I drilled some holes where I needed them to secure the tuning pegs. Not a big deal.
The entire print with one extra knee rest that failed halfway through the print used around half of a spool of filament.
Once again this was a great idea, and if it ends up being useful for practicing at home for my son, then it saved me at least $400 that would have been spent on a really low quality craigslist cello.