How to build a USB microscope

USB microscopes are very useful tools for students, teachers and amateurs, allowing you to upload the images you see through a microscope directly to a computer and save them for use in projects and study plans, or to upload to the Internet. But they can be hard to find and expensive to buy and maintain. Fortunately, building your own USB microscope at home is a cheap and affordable process that can be done quickly and with high quality results.

You will need to:
  • Microscope
  • Webcam
  • PVC pipe (25 mm)
  • Small saw
  • Knife
  • Epoxy
  • Compressed air
  • Ruler
Steps to follow:

one

Remove the lens case of the microscope carefully, checking the cables that may be plugged into the case or any other element of the sensor that may be attached to the case. If one is joined, carefully remove it by prying with the knife. Remove the lens matrix from the camera sensor, taking care not to damage the motherboard or sensor. Clean the sensor with compressed air, and set it aside.

two

Fit the PVC tube into the eyepiece of the microscope . Measure one centimeter above the eyepiece and cut the tube with the saw. If you want the USB camera to be permanent, cover the eyepiece with small epoxy dots and secure the eyepiece tube firmly. Leave the epoxy at least 15 minutes before continuing.

3

Connect the sensor to your computer with the USB cable. Place the sensor on top of the tube and move it until the brightest area you can find is exactly in the center of the image that you see on your monitor. This is the perfect center of the image. Disconnect the sensor and attach the sensor to the top of the tube with a small amount of epoxy. Let epoxy dry.

4

Cut a small section of the remaining PVC pipe in half. Trim the tube with the knife until it fits over the sensor. Glue half of the pipe to the sensor to protect it from dust, and leave room for cleaning when necessary.

Tips
  • Investigate Webcams, they are easier to remove from your boxes before buying.
  • Microscopes are easy to find in school supply stores and scientific supply stores.
  • Use epoxy only in well-ventilated areas to avoid any problem with gases.