Servo - April 2013

FIGURE 3.

Good Vibrations

Fully utilizing the accelerometers does come at a cost. Accelerometers are very sensitive to the propeller vibration in a multi-rotor craft. While these vibrations are handled by the NAZA enclosure, the same can't be said for the APM 2. 5.

You must add vibration control to your craft before you can use the new firmware. Failure to do so could lead to your craft flying out of control.

You might be asking, what is vibration control? This can be as simple as adding foam rubber under the controller or as complex as an isolation platform on your craft.

I prefer the isolation platform because it allows me to add other things without having to worry about the

Boom Extensions

I talked about boom extensions last month, and have come up with several extensions that will fit the Kronos Flyer booms. These will allow you to use various size motors, and mount the motors on the top or bottom of the extensions as shown in Figure 5. While boom extensions are not required, they will allow you to use larger props and motors. They also look cool.

Landing Feet

Because I wanted to move the battery off the bottom of the craft, there is no longer a need for the helicopter style landing gear on the Kronos Flyer. As a replacement, I designed a set of small feet and boom covers shown in Figure 6. Again, these are optional, but will keep the belly of your craft off the ground for take-offs and landings. They also provide a good mechanism for attaching foam for a more cushioned set of landing pads.