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Free downloads

Following documents are free to download.

These files describe projects which, for one reason or another, does not qualify to be transformed into proper edited building instructions or are simply out dated. The qualities of these files vary and are not guaranteed to be complete.

EDF Afterburner

The original building instruction that came with the kit is now available as a free download pdf. The building instruction is quite informative and reveals the key design features that make stable combustion possible in seemingly high speed air flow ducts.

EDF Afterburner instruction (pdf) »


Simple compressed air BB machine gun (spin off project)

This free download consists of a series of photos that shows you how to build a simple BB MG.

The simplicity comes with a cost; the rate of fire is excessive, >100BBs/sec.

Simple compressed air BB machine gun instruction (pdf) »