This week we completed and delivered the LV4 isotank to Portland State Aerospace Society. This tank will be used as a ground test article to verify the tank design before the flight articles are built. The completed tank is 55.4″ long and 12″ in diameter.
Tonight we finished machining the first cylinder section of a propellant tank for Portland State Aerospace Society‘s next gen launch vehicle, LV4! This tank section is 12 inches in diameter and nearly 28 inches long. Two sections will be welded together to complete the fuel tank. The machining process removed about 70% of the weight of the cylinder. Also shown is one of the 6-inch-diameter test articles, completed earlier this month.
We’re excited to be partnering with Portland State Aerospace Society on developing small scale isogrid propellant tanks. This week we delivered a 6 inch diameter sub-scale article for testing. The tank was produced using our new CNC router equipped with a rotary axis.
We have a new piece of equipment in our shop! The PRO6060 router from AVID CNC. This video is from the first time powering on the system and testing out the axes.
The third revision of the EVPR Mk. II electronics are here! Still have some work to do on the battery charger, but the rest of board is working and testing on the vehicle can start.
After a few design revisions, the oil tank for Titan is complete and ready to integrate into the airframe! The 6 quart tank was made completely in-house with exception to the filler neck and cap.
Fit checks for the first Mk. II prototype board are complete and the board has been populated. The processor is powered via USB and accepting code!
The prototype boards for EVPR Mk. II are here! Time to start populating the board and checking out the design. Thanks to Georges Oates Larsen for the PCB layout and OSHPark for the awesome boards.
One of our first milestones for 2020 will be testing the engine for Titan in a horizontal orientation. This will ensure that the oil system and structure is acceptable before adding of the drive system. The test stand is now assembled and undergoing fit checks.
We’ve recently completed a prototype of the power transfer hardware that will be used on our next generation rotor design. Carbon brushes, held in place with a custom 3D-printed holder, transfer power to copper plates on the rotor. On-board batteries will remain, providing a backup power source.