RPM sensor mounting & new batery tray on RaptorCam

[AZ ChopperCam]

now that I have finished test flight phase of the RaptorCam I've finally made a battery tray since I now know where the batteries need to be located. It's cut from G10. I am able to move the packs fore/aft as much as +/3" from center which allows me to either run a heavy video camera with lens or a light small point and shoot still camera. CG is easily adjusted.

Also here's how I mounted the Eagle Tree RPM sensor. I used a piece of Plastruct I-Beam ( absolutely love Plastruct!) I heated the I-Beam over a candle and formed it into this shape. Then I mounted up the sensor and heat shrunk it in place. The I-Beam mount screws into the canopy mount hole. If youre running a stock canopy you can just shorten the aluminum stud and screw it over the RPM mount.

I painted the top of the gear with flat black paint (use fuel proof paint for nitro) and then stuck two pieces of polished aluminum duct tape 180° apart. The sensor is about 4mm from the face of the gear. Leave the sensor setting at 2 pulses/rev and RPM's read correctly.

This mount took me about 5 minutes to make... super simple

[iflybyu77]

Jeez Dj, that thing hardly looks like a rappy anymore! :D

Do you like the eccpm setup better??? Any noticeable difference?

[iflybyu77]

Where did you get your wire braiding BTW? I need to get some of that....

[AZ ChopperCam]

electronics supply store out here they call them Fry's Electronics. they are huge warehouse type stores that sell all sorts of electronics gadgets

[WillJames]

I get mine from Bob and Becky at events. or call

http://www.helifreak.com/bandb/

[MarkWebber]

How's that Eagle tree setup work for you. I've been thinking of adding a gov. I've been getting a bit of overspeed on windy days. I guess it would be from the extra transitional lift and not needing that much collective. Just deciding which to go with, ya know.