This is a RaspberryPi Mediacenter case for the Rpi 3. There is space for 2 HDDs, 1 BlueRay or DVD player, the Powermangament, 2 USB-Ports, 1 HDMI, 1 PC fan and some extensions. Here are the full part list you need, to can complete, all parts fit perfekt together. You must trill the holes by your own.
1x https://www.amazon.de/gp/product/B000292DO0/ref=ox_sc_sfl_title_25?ie=UTF8&psc=1&smid=A1O0H08K2DYVHX (optional)
1x https://www.amazon.de/gp/product/B003169AAG/ref=ox_sc_sfl_title_26?ie=UTF8&psc=1&smid=A3JWKAKR8XB7XF (if you don´t have)
1x https://www.amazon.de/gp/product/B00V4PQFIG/ref=ox_sc_sfl_title_27?ie=UTF8&psc=1&smid=A3APNFSXYPLDVX (for LAN)
1x https://www.amazon.de/gp/product/B00M8SLYMK/ref=ox_sc_sfl_title_28?ie=UTF8&psc=1&smid=A3ESLU4NR2Z9UZ (for hdmi)
1x https://www.amazon.de/gp/product/B00NIH1PZ6/ref=ox_sc_sfl_title_29?ie=UTF8&psc=1&smid=A3ESLU4NR2Z9UZ (for external usb)
2x https://www.amazon.de/gp/product/B00GYLDDCG/ref=ox_sc_sfl_title_30?ie=UTF8&psc=1&smid=A3JWKAKR8XB7XF (that´s for the HDDs. Please use only the PCB of this case. you don´t need the case)
1x https://www.amazon.de/gp/product/B0101JAT2S/ref=ox_sc_sfl_title_31?ie=UTF8&psc=1&smid=A3JWKAKR8XB7XF or https://www.amazon.com/gp/offer-listing/B006YG9QFE/ref=dp_olp_all_mbc?ie=UTF8&condition=all (the first one is blueray, the secondone is dvd, you can choose, what you want. You need only the things, that is inside of the case)
2x https://www.amazon.de/gp/product/B00F8C476S/ref=ox_sc_sfl_title_33?ie=UTF8&psc=1&smid=ASUJ7HG0TBW7O (this is the 12v to 5v converter. use this twice. it gives you 3A each one)
1x https://www.amazon.de/gp/product/B01E042UH2/ref=ox_sc_sfl_title_34?ie=UTF8&psc=1&smid=AEB9F56C3A3O6 (that is an usb hub with external power. you will need it. It is small and will fit perfectly inside of this case.)
1x https://www.amazon.de/gp/product/B00ECWKD6I/ref=ox_sc_sfl_title_35?ie=UTF8&psc=1&smid=A1X0M9U5WW1195 (a fan)
1x https://www.amazon.de/gp/product/B015A38PQM/ref=ox_sc_sfl_title_36?ie=UTF8&psc=1&smid=A50DZI580G3JX (much more screws)
The Case size is about 300mmx200mmx46mm
I don´t know, how long it needs to print. I didn´t print it yet. Maybe you can tell me it, after you printed it.