I have started Sketching Up a few designs for the case, which I will have 3D printed soon. I plan on a compact case with a hinge design to allow for variable flow rates as I described in my last project log. This improved design marks the split from the $5 machine. I will finish designing the $5 perfboard-based machine, and post the code and specs, and will then focus on this much better version. The $5 machine is great for the classroom and people who want to try PCR out, but the new machine will be a practical machine for general purpose DNA replication.

Features will include:

• Low price
• 3D printed case
• Bluetooth connectivity
• Cloud-Sharing of PCR parameters
• Software interface
• Touch-Down PCR capabilities
• Heat-fuses for safety
• I2C sensors for improved accuracy
• Open source hardware and software