We have been using our filament extruder for over a month now ..... and it works .... kind of.

We are able to successfully turn plastic bottles into filament with this machine. Unfortunately, the machine keeps on jamming during operation and we cannot leave it unattended. This is a major bottleneck and limits our usage of the extruder.

Also, the average water bottle only produces ~5m of filament. This is not long enough for the overwhelming majority of print jobs.

I am returning to Canada next week. With renewed access to my tools and machine shop, I plan on designing an entirely new extruder that rectifies these problems. The machine will have some sort of mechanism that can enjoin filament pieces together. Thus, I will be able to produce a standard 300m spool of 1KG filament. Moreover, I will add some sort of quality control sensors to ensure the filament is produced in a consistent manner. 

Once the machine is finished, I will fly back to Rwanda to deploy it. Ideally, this will be at the end of summer.