Assemble the basic optics module

The imaging optics for this version of the microscope consist of a Logitech c270 webcam and the lens from the camera. To create a microscope, the wide angle lens is reversed and separated from the camera. This makes quite a good microscope objective with a field of view about 400μm across and a resolution of around 2μm.

For this section you will need:

Tools

1 #1 pozidrive screwdriver

Printed Parts

1 Camera platform
1 Lens spacer

Electronic Components

Mechanical Components

1 M3 nut
1 M3x10 cap head screws
3 No 1 self tapping screws - Recovered from C270 camera dissassembly

These instructions guide you through assembling the manual microscope with most compact and low cost optics system, using a Logitech C270 webcam in a basic optics module.

STLs for using an Arducam B0196 webcam or a Raspberry Pi camera v2 in a similar module can be found in the list of basic optics modules on the optics customisations page.

Step 1: Visually inspect the lens spacer

Take the lens spacer and confirm that:

It has been printed in black
It is dust free (You can blow air through to clean it)
The central shaft is not obstructed by strings of plastic.

Step 2: Push-fit the lens

Work out which side of the Logitech C270 Camera lens used to be facing the camera sensor (This is the side with more lens visible).
Place the lens on a clean surface with the side that was next to the camera sensor on the bottom, and the wider knurled ring towards the top.
Push the lens spacer down onto the lens until it clicks into place.

Step 3: Attach the Logitech C270 Camera

Take the Logitech C270 Camera and place it on top of the camera platform.
Place the lens spacer over the camera
Use three No 1 self tapping screws to secure the three parts together using a #1 pozidrive screwdriver
Take care to not over torque the screws.

Step 4: Attach the mounting screw

Take an M3 nut and push it into the nut trap from the top
Take an M3x10 cap head screws and screw it into the nut.
Only screw it in a couple of turns. About 5 mm of thread should still be visible

Set the complete optics module aside in a safe place.