I’ve been playing around with an idea of electrifying some octocopters I’ve been designing/building with my 4-year-old son, however I seem to have found myself in the dead end when it comes to motors.
In order to [more or less] maintain the design of the craft in rotor sector, I’m looking for a very low profile motor (height wise). The size of motor/scale of craft doesn’t really matter, as I could re-print the octocopter in virtually any size. I have access to a variety of tools such as CNC (in case I really do have to modify the motor bell housing/motor mounts) - but before I get to that I’d like to see if there were any alternatives out there.
I haven’t had any luck finding such low profile motors, and am beginning to think that I might actually need to integrate the blades right into the bell housing… Would any of you be able to recommend such a motor/point me in the right direction for further research?
Very nice CAD files you shown there and a nice project.
It will be difficult to fit motors in this tight space and might be difficult to get enough lift for the model as well.
What would be the diameter and estimated weight of the model (without motor and battery) ?
I’d have to throw this thing on a scale to be sure, but I’m guessing around 400-500 grams, without containers. Now, these things were designed to withstand the play of my three children - all five and under - and to my surprise nothing has been broken yet (can’t say the same about the other toys they have). So in order to make it flyable/lighter, I’d redesign quite a bit of it, while maintaining the general idea…
Some random thoughts:
]Weight reduction would come from decreasing the number of shells to 1 - right now it uses 2./:m] ]Reducing the infill would also help./:m] ]I’d ditch the magnets from the door/step locking mechanism, and remove any moving parts which were there for visual purposes./:m] ]Containers also get attached magnetically, so removing magnets from the frame of the craft would make it lighter./:m] ]I was hoping to not go over the 100mm blade diameter, and power everything using the 2205 motors, having said that I could up-scale the whole thing x2 and go with more powerful equipment./:m] ]Regarding blade protectors, those could also be redesigned for better airflow, or could even use some type of meshing which would in turn lighten things up./:m]
Still in the research phase for the whole “electrification” of this design, so lots of questions, but I really can’t wait to get these off the ground - literally!
