Viewing profile — tsungxu

I do agree that trains and then streetcars created suburban corridors, but suburbia as we know it today became possible with highways and mainstream car adoption post WW2, at least…

The two first order reasons (certification overhead on engineering and low volumes) as to why personal aircraft are so expensive can finally be addressed. https://www.tsungxu.com/i…

Walking made 2-mile villages feel local. Cars made 20-mile cities feel local. Flying cars will make 200-mile regions feel local.

Yeah it's a strange term because it probably originated relative to fixed wing planes. Ie a VTOL plane. But now multicopters are the predominant species so VTOL can sound redundant…

Thanks, really appreciate that

Thanks! Not robust exactly because the filament I used is has really poor impact and UV resistance. But that's the tradeoff with lightweighting

Yes, you're right, I meant ACCST not SBUS

Thanks! On the normal jobs point though, see Peter Ryseck's build which got him hired by Joby https://www.youtube.com/watch?v=Dd2N_lyO_SQ

This is neat! It seems like it could help with set up speed generally and also simplicity for beginners

Aesthetics follows function in this case. And agreed VTOL is not beneficial at hobbyist scale for most because of the ease and short distances required to hand/runway launch and la…

Great question, but spinning lifting motors in cruise draws more power than it's worth for efficiency. There's ways to use differential thrust for multiple cruise motors to roll if…

I actually managed to batch print the wing sections which you can see in the video in the rebuild chapter. That works really well for wing sections because each takes up a minimal …

I saw that one too which was also incredible. This latest record was from a few days ago https://youtu.be/8p5eZ4ZRkfY?si=hSxTh5BeSyEwzpy8

A1, 256 x 256 mm lets me print these wings in four sections (including a double walled thin section for the boom mounts). With a high AR glider you'd probably need a few more. Carb…

Thank you, appreciate that!

Yes and there is foaming ASA as well which is almost as light as foaming PLA. But I can't print ASA well on my A1 and the weight penalty was still enough that I didn't try, given t…

This actually has decent flight time! Could probably push close to 3 hours if using higher energy density (and cost) battery cells like the silicon anode ones I used.

I used single wall foaming PLA which has filament density of ~0.45 g/cm3 at 250 degree nozzle temp, about 64% lower than normal PLA. But it is even worse for impact resistance than…

Thank you!

Yes it really depends on the transmitter protocol. I was using SBUS, simple, cheap, familiar from my previous project. But limited to < 1 mile or so I believe, but ELRS and other p…

Yes, one of the challenges though is airframe structural integrity when building it yourself. Need to have good enough understanding of multicopter and fixed wing plane design

Thanks! I'm using the standard Ardupilot control systems for hover, transition and cruise flight. On the firmware side, it's just some parameters and tuning that is customized. Wha…