PROJECTS: HHO ROCKET
makezine.com/20/hhorocket
MAKE IT.
BUILD YOUR
TWO-STAGE
HHO ROCKET
STAR T>>
Time: 3 Afternoons Complexity: Moderate
1. PREPARE THE GAS GENERATOR
1a. Cut the handles off the strainers.
1b. Using a nail, separate the mesh at the top of each strainer
just enough to make room for the bolt.
1c. Place a washer on a bolt and pass it through the hole in the
strainer. Place a second washer on the bolt, wrap a heavy-gauge
wire around the bolt, place a third washer on top of that, and
tighten it down with a nut.
Repeat with the second strainer, mounting the bolts in opposite
directions so they won’t touch when the strainers are stacked
together.
1d. Stack the strainers and glue the rims together with silicone sealer. The Oxo brand strainers have a
plastic rim so the metal mesh won’t touch when they’re stacked; if you use different strainers you’ll need
to glue foam insulation between the strainers.
1e. Glue the rim of the bottom strainer to the inside bottom of the 5gal bucket with silicone sealer.
1f. Place the funnel on top of the upper strainer. Notice where
they touch, and place a few drops of silicone sealer there to glue
the funnel to the upper strainer. Let the glue dry overnight.
Photography by Tom Zimmerman
94 Make: Volume 20
