Introduction: A DIY AFM Whokshop

About: Democratize Nanoimaging for Everyone by Hacking DVD Players to Build up Atomic Force Microscopes. Repurpose Blu-ray Drives for Fighting Zika/Dengue Virus.

Update: here is a company producing this kind of AFM Enjoy!

There is an DIY AFM workshop with one hobbyist from the States and one professor from India. They assembled their own DIY AFM within 2 hours crafting time.

Here is a link to previous project:

Step 1: Preparing the Parts Before Assembly......

Finish edges of the parts.

Step 2: This Time...we Use Instant Glue....

In stead of solder, all the structures are glued by instant glue, which makes assembly easier and healthier.

Step 3: Wiring the Scanner....

Use solder iron for wiring cables of the scanner.

Step 4: Gluing the Z Axis Transducer of the Scanner

Very important!

Step 5: Assembling the AFM Head

Again....glue everything.....

Step 6: ​The Optical and Mechanical Parts Are Done!

Just put one magnet on top of the Z transducer.

Step 7: Performance Evaluation

The optomechanical part is connected to a AFM controller

Step 8: Low Cost AFM Calibration Sample: DVD Data Tracks

Use the DVD data tracks (pitch= 740 nm) for calibrating scanning range of the scanner.

Step 9: Measuring the AFM Calibration Sample (NT MDT TGQ1)

The DIY AFM with economy AFM controller can successfully measure height of square calibration features 20 nm with contact mode.

Step 10: Measuring 1.4 Nm Features on the TGQ1

Surprisingly we found that the DIY AFM can work with non-contact mode (attractive interaction between atoms caused by van-der-Waals forces) which resolves 1.4 nm height feature on the TGQ1.

Step 11: The DIY AFM With Advanced Controller

The DIY AFM with advanced AFM controller can clearly see the DVD data tracks when operated in AC (Tapping) mode.

Step 12: The DIY AFM With Advanced Controller

20 nm Squares and 1.4 nm features are clearly seen.

Step 13: Measuring Nano Particles

Step 14: Resolution Limit Test....

The DIY AFM system with 12bits controller can resolve 0.5 nm which is similar to height of 2 carbon atom layers on HOPG (Highly Ordered Pyrolytic Graphite) surface.