Warning, the pictures have many mistakes that are corrected on the files. The main one is that I printed the wrong pawns, those are rooks I think. I u...nderstand nothing of music (it's a gift to a pianist) so I printed that and only went back to check after everything was done.
The other huge one is that the pieces are too big and you have to rotate them to fit on the chess. The file I submitted have the pieces at 80% of that size. I hope that's enough (I didn't want tiny pieces, but musical notes are not really a good fit for chess..)
It's a frankenstein of the 3 sources I'm linking. I hoped this would be a super quick put together thing but it took so long and it's so different from the sources that it would have been better to make it from scratch. Many things I would like to fix but I'm not printing that again, mistakes and all. I would like to specially improve correctly the chess pieces (I made a not so happy attempt) and the chess board because it came all in wrong heights in my printer.
Either way, you can also use the piano as a box itself. Everything but the board goes inside the piano, including the stool.
The connector on the lid doesn't work too well and barely holds things together. I appreciate if someone improves that.
Thanks to Albator_91 for helping me fix mistakes in the files, otherwise no one else could print!
3d model print parameters
Printer brand:
Wanhao
Printer:
Wanhao Duplicator i3 Plus
Rafts:
Doesn't Matter
Supports:
Doesn't Matter
Infill:
15
Filament_brand:...
coocoon
Filament_material:
pla
Notes:
The piano parts are mostly separated now. (I actually hand painted the stool but now it's separated as well). The piano keys are the most crucial thing. Print at the finest resolution with bed well leveled. If the print gets squished in the bed it's really hard to make it fit. Even then, use some thin pliers to force the white keys on the black ones. It's a tight fit, but it does fit. The chess set have all pieces of one color in that group, so print 2 of those. The board, print 2 of the squares group, one for each color, and one of the square with the corners. But then you need to print another one for another color removing the corners, since that file contains the 2 missing pieces for the other color as well. All parts could be printed as they are. It's all broken in parts to ensure a more smooth surface printed horizontally, but it might not be necessary for printers properly calibrated (not mine AT ALL). I think I'll upload another version with print in place piano. The only thing that might require support is the piano legs and the chess pieces, but I think they would survive without. One warning, just like most files I got from thingiverse, the meshes are not merged together (boolean), so check the preview of your slicer as it might not handle it properly (cura and I think all open source ones do).
Post-Printing
Glue piano parts together (except lid of course).
How I Designed This
Blender and cura 3.5 (god damn cura default support settings!)