After the construction of the first quadrocopter with directly mounted motors and the resulting vibrations that affected to the readings of the IMU and make this Quadcopter difficult to control, for the other structures, a new, but still simple, absorbing motor mount was sought.
Inspired by the so-called vibrationreducer of model helicopters I searched in this the area of implementing rubbers for a suitable solution. Canopy grommets may be used for very small motor diameter. From 4mm to 10mm normal small implementing rubbers can be used. This gets you all on the Internet.
And so I found the canopy grommets MSH51054 for Protos500 helicopter as perfectly appropriate suspension damping for Hextronik 2g brushless motors. For the other engines I use tiny implementing gums, which I bought as I said on the internet.
Of course, the holes have to be somewhat bigger for the motor installation. Well, it proves useful that was somewhat higher in laying out the framework for the motors :-). The following table shows the required dimensions fot the motors:
diameter motor mount
diameter for grommets
Since the Ladybird feet, mounted directly on the engine, can no longer be used and for the other engines anyway a generic solution is needed, I searched for 'any' best variant of lightweight plastic.
By chance I found in a hardware store "Knotenbänder (node bands ?)" of which represent short segments the perfect solution - flexible yet stable enough. Pasted in the holes, which were intended for the feet or a protective frame, they meet the exact requirements.
For the propeller I was looking for an alternative to the Silverlit X-Twin sets. However propeller under 50mm are not typical. For Amax and the Blade Nano QX I found one with 46mm propeller.
And so it comes to the construction of the planned combination of motor and receiver...
The motors of the second building's sitting with Hubsan motors & DSM2-receiver intentionally so high. This structure should be the first option on which the 5.8GHz camera is to be tested as a FPV. Certainly the scheme must be trimmed again - after all, the added cam brings a additional weight of more than 4gram with it.
And also with the Hextronik 2g brushless motors a good FPV version can be realized. These motors are (in this case positive) high enough to mount the 5.8GHz camera.
So I'll now have enough material, which have to learn the stable fly :-)
As a small pause filler, in between times when I may not see the PID control variables, I also work at a very small variant of a DSM2 Transmitter/Controller ...
picoQuadcopter canopy grommets for Hextronik 2g motors
picoQuadcopter all used grommets for motor mount
picoQuadcopter Knotenbänder (node tapes ?) pack
picoQuadcopter Knotenbänder (node tapes ?) singles
picoQuadcopter Propeller sets
picoQuadcopter Propeller singles
picoQuadcopter secound buildup
picoQuadcopter secound buildup motor mount
picoQuadcopter secound buildup without accu
picoQuadcopter secound buildup with 250mAh accu
picoQuadcopter X-Twin/Bluetooth motor mount
picoQuadcopter X-Twin/Bluetooth without accu
picoQuadcopter X-Twin/Bluetooth with 250mAh accu
picoQuadcopter Hextronik/DSM motor mount
picoQuadcopter Hextronik/DSM without accu
picoQuadcopter Hextronik/DSM with 250mAh accu
picoQuadcopter HP02T/Bluetooth motor mount
picoQuadcopter HP02T/Bluetooth without accu
picoQuadcopter HP02T/Bluetooth with 250mAh accu
5.8GHz camera TE60A without power cord
picoQuadcopter with 5.8GHz camera TE60A
5.8GHz camera TE60A on the scale
picoQuadcopter with 5.8GHz camera TE60A on the scale
picoQuadcopter with 5.8GHz camera TE60A at work
picoQuadcopter with 5.8GHz camera TE60A und 250mAh accu on the scale
brushless picoQuadcopter mit 5.8GHz Kamera TE60A
brushless picoQuadcopter with 5.8GHz camera TE60A at work
brushless picoQuadcopter with 5.8GHz camera TE60A and 300mAh accu on the scale