I managed to make the Raspi-boy. I wanted something with larger space for battery and Raspberry Pi 3. This case has plenty of space.
The print looks ok, but I'll print it again on the Ultimaker 3 I ordered.
Its based on this design: https://www.thingiverse.com/thing:2248709
I used a little different parts inside for this great handheld case!
-5 inch LCD HDMI Touch Screen Display Module TFT LCD 800*480 Raspberry Pi
-Raspberry Pi 3
-Adafruit I2S audio amplifier. https://www.adafruit.com/product/3006
-a tiny PSP speaker on the front:
https://www.bonanza.com/listings/New-PS ... /300218057
-6Ah lipo battery pack https://www.sparkfun.com/products/13856
-Adafruit Powerboost 1000+ https://www.adafruit.com/product/2465
-Internal USB Flash Disk to store the ROMS in parallel of the SD card.
-Used Pimoroni PICADE scripts for Audio setup and will add some buttons for Volume UP DOWN and Shutdown as well:
More photos of it and the inside: