rapid basalt
A rebuild of the drone I lost last year. Built on this frame: https://www.thingiverse.com/thing:5505711 (w/o standoffs the frame weighs 5g, 90mm between motors)
Weighs 32g without the battery, and a 450mah battery adds another 12.1g. Yet to figure out a good tune for it, could use some tips if anyone else is flying 2" picks.
Didn't think the camera would be so "long" that it would block the opening for the antenna on the canopy, so I had to tide it to the side
forest cave
do tell me how it flies
rapid basalt
do tell me how it flies
For now it flies like shit xD
Doesn't have a blackbox for easy tuning, and I've forgotten everything by now. Working on it rn
rapid basalt
It's not supposed tho. The tune I had previously was nice
rapid basalt
Can't get rid of oscillations for some reason. Decided to get an external logger. Will tune it the good ol' PIDToolBox way, then add extra weight that's equal to the weight of the logger, tune it again to see how the tune changes with extra weight attached, and then I should be able to "subtract" the difference from the initial drone+logger tune to get one that works well without the logger
lunar hamlet
I'm going to bet that your oscillations are due to the flex in the middle of the frame. while your arms may be possibly stiff enough, they need to be stiff in relation to each other as well. The best solution is of course a single piece carbon fiber frame, but Given your location and possible limited access to resources, You may need to build a slightly asymmetrical frame so that you can have the tubes go all the way across from one motor to the other. that will cause 2 motors to be the width of the tubes lower than the others, but that is likely far less problematic than the loss of stiffness through the center.
grand bridge
narrow tubes are not very beneficial, better are larger tubes, as lorin said, a main advantage of larger tubes is better torsional resistance, make sure the tubes are fixed well by superglue or screws. an easy fix to oscillation problems is to try drastically increase the filters, which block noise frequencies from the PID loop... dont rule out too much or youll loose useful frequencies.. then instead lower the PID parameters