M2FC PCBs Ready To Assemble

M2FC PCB Top
M2FC PCB Top PhotoM2FC PCB Bottom M2FC PCB Bottom Photo

 

The flight computer PCBs have been collected from Cambridge Circuit! As ever they’ve done a fantastic job. We had a quick tour of their facility when we collected these PCBs which was great to see. Thanks again Cambridge Circuit! The renderings of the PCB above were generated by GerbLook, click the link to check out the other layers.

All the orders have now been placed for the various electronic components for these PCBs (the bill of materials for one flight computer alone is around £150!). We also have stencils and stencilling jigs in-hand so soldering should take place next week, after which all that’s left is to write the firmware that will operate the avionics. This firmware is responsible for deciding when the moment is right to fire the various pyrotechnics and let the ground crew know what’s going on.

Motors and Machining

Martlet 2 is powered by an O-8000 Pro150 Cesaroni motor. This is the largest certified motor available and, over the course of its 5.12s burn time, produces an average thrust of 8000N. We purchased the motor last weekend from Animal Motor Works and will be meeting it for the first time at BALLS.

Cutting some of the aluminium stock into a section that will remain in CUED and one to be sent to WPPE

Cutting some of the aluminium stock into a section that will remain in CUED and one to be sent to WPPE

In other exciting news all the aluminium stock is now out of the basement lab and being machined. WPPE are machining the various couplers, fins and the aft cone whilst the CUED workshop are kindly machining the fin can ( at a length of 480mm and with a diameter of 186mm it is Martlet 2’s biggest metal component).