Biotech Device CAD & Electronics

I’m kicking off the first stage of a small, proof-of-concept biotech tester that fits everything on a single PCB and slips into a compact enclosure. The immediate priority is an accurate 3-D layout of every component so I can confirm space claims and streamline the optical path before committing to board routing.

Here’s the picture:

• Core electronics: a low-power microcontroller, USB-C for power/basic comms, two I²C temperature sensors, two analog light sensors, four momentary buttons, a four-position DIP switch, status/power LEDs, and a 2 W resistive heater bonded to a 1 cm³ aluminium block (max 45 °C).
• Outputs: 1- to 2-inch display plus the LEDs and heater.
• Inputs: the sensors and buttons listed above.
• Mechanics: light pipe guiding the optical path, single PCB mounting, and a simple outer shell.

What I need from you now is a SolidWorks or Fusion 360 model that places every part in its real-world footprint, shows all connectors, and leaves room for the light pipe and small display. Include provisional standoffs, keep-out zones for the heater block, and any fasteners you feel are necessary so I can hand the assembly straight to the board designer. If you spot obvious clashes or thermal issues, flag them; a quick render or exploded view for presentation is a plus.

Deliverables
• Native CAD files (SolidWorks *.sldprt/*.sldasm or Fusion 360 archive)
• STEP of the full assembly
• Annotated screenshots highlighting connector access, optical path and heater clearance

Acceptance criteria
1. Each specified component is represented at real footprint size.
2. Connectors and buttons line up with the housing walls for user access.
3. Minimum 2 mm air gap around the heater block; display kept clear of radiant heat.
4. Light pipe path unobstructed.

Once the layout is locked I’ll move to schematic capture and enclosure styling, so a clean, well-named feature tree will keep us moving quickly.