Today I managed to wire up the motor driving the blade, mount the blade on, get with my feet on a chair, and give it a go!

What happened next was quite expected. I mean, expected when you prepare for failure. The blade started wobbling, I stopped the motor immediately, the blade detached from the motor, and flew away like a shuriken. Only to hit a cardboard box nearby. (Disclaimer: no cardboard boxes were harmed in this test).

I mean.. I hoped the 3d printed blade to motor mount would good enough, but hope isn't equal with reality. That needs rethinking and probably redesigning.

Next on the agenda, I noticed sparks in the motor:

My [learn by googling knowledge of electronics doesn't stretch that far, and I need to figure out if this is critical or not..