This model is the original enclosure for Home Assistant Voice Preview Edition optimized for 3D printing. 

It's based on the official injection-molded parts but with some adaptation to avoid many supports :

• Home Assistant logo on the bottom enclosure is removed
• 3D screw threads instead of threaded inserts for the top enclosure
• Flat wheek
• Flat button

Before printing it, read the assembling/reassembling procedure on Home Assistant documentation website to avoid breaking parts of your device :

• Disassembling the enclosure guide
• Reassembling the enclosure guide

You will also need to bring some parts from the original device : 

• The PCB
• The speaker
• All the screws
• The rubber pads for the bottom enclosure
• The rubber lug for the button

You have multiple way to customize the device with different level of difficulties:

• Easy : replace only the top enclosure. You will not need to disassemble the PCB.
• Intermediate : replace the top enclosure, the bottom enclosure and the button.
• Hard : replace all the plastics part. You will need to full diassemble to device and unclip the wheel for the PCB

Here's the recommended settings to print the parts: 

• Top wheel: 0.12mm layer height, no support
• Top button: 0.12mm layer height, no support
• Mic switch: 0.12mm layer height, no support
• Bottom enclosure: 0.20mm layout height, support enabled
• Top enclosure: 0.20 layout height, no support