KNSU Rocket Motor Test with 3D Printed Nozzle Mold

I successfully fired a static test of a KNSU propellant motor. I had it set up to measure the resulting thrust with a load cell and FubarinoSD.

3D Printed Rocket Nozzle Mold

I have tinkered with small PVC rocket motors using sugar fuels in years past thanks to information posted by Richard Nakka, Dan Pollino, and Jacob's Rocketry. The frustrating part of the build, particularly for smaller diameters, was the nozzle. After building a 3D printer, it was time to print my own nozzle molds.

Nozzle molds on print bed.

Wine Bottle Hydroponic Planter Tutorial

For Christmas every year, we pick a hand-crafted gift to give to everyone...family, friends, coworkers, the ladies at the sandwich shop...everyone.

Our Yuletide production line was cranking out a fun one this past year, Wine Bottle Hydroponic Planters. Follow these instructions to make your own!

Ramp Walking Robot - 3D Printer to the Rescue!

Roberto Lou Ma has built a variety of ramp walking toys (see his youtube channel). The one that caught my eye was the walking robot. I started building one quite some time ago, but got hung up on how to make the feet. The bottom sides of the feet are actually turned into a part of a sphere using a lathe.

I don't have a lathe.

I am, however, borrowing a MakerBot Cupcake 3D printer from a friend. Naturally, I printed the feet out of ABS plastic using the MakerBot.

Check out the video of my robot walking.