Finally! I true micro heli worth keeping!
Here is the kit. Awesome! I got it from GrandRC and with excellent service. Here you can see how I cut the frames to save weight. almost 12 grams!
Here is some of the heli next to the Dremel for size comparison. It's a beefy heli! I would say 99% baby raptor!
The frames together. So far everything fits perfectly. Again these are cut out to save almost 12 grams of weight.
I am using the Mega 16/3/15 motor. It seems quite strong.
Here is the tail section. Nice
Flybarless? Nah, just getting her done.
The canopy (while a bit heavy) is very nice as it is one piece and glossy.
Front shot. Canopy fits like a glove on the heli.
Split gear design. Very smooth. The little fan molded into the bottom gear really doesn't do anything.
Pitch arm just like the raptor. I also cut some holes into it to save on weight.
I CAed a very thin piece of plastic (cut from a packing carton) to help with the gyro placement. I cut it to size.
Here is the main head. I have each screw turned out about 1/4 turn so the ball can rotate on that screw. Make for very free ball links.
Here is another pic of the setup. Very similar to the raptor, well identical if you ask me :) I am still contemplating CCPMing.
Again, I cut the mounts off the servos when I used them in my Hornet helis. I bent thin aluminum and used Gorilla Glue to put them on. They are here to stay!
Here is the pitch setup. I got the ball link conversion kit to get rid of all the z-bends. Very nice. I bent the pushrod just a little to get a straighter setup.
I found all of the binding in my heli to be located with the ball in the swashplate. To fix it I put a bolt/nut though the ball and spun it using a drill at the highest speed for a min at a time. After about 3-4 min it was much looser and now runs smooth. Heat it up!
Remember I cut the mounts off of the servos when I used them in my Hornet heli.
Here is the polycarbonate stock I used.
After the rough cut, I turned it down.
Again, I used an endmill as a boring tool to get the ring cut out.
Cut off tool makes easy work of this stuff :)
Done. I eye balled the 120 location by putting a Hornet 120 swash on top and marking out the holes. The brass spacers are from the kit, they are the bushings used behind the bearings.
Don't have a 120 degree guild? Just download this and print it out.
Here you go. Pretty simple really. Mounts are made of plywood and the servos are double side taped on.
The elevator mount is screwed into the cross brace and I have installed a twisty tie around it for more security.
Here is the anti-rotation guide. A simple piece of graphite with a slot and CAed to some balsa that is CAed and double-side taped to the servo mount and sides.
| Overall weight | |
| Heli | 437.9 g |
| Canopy | 25.4 g (for now :) |
| Battery | 145.8 g |
| TOTAL | 609.1 g |
INCREDIBLE!!!!! The CCPM is awesome and the heli moves and grooves! It rolls and loops on a dime. Finally a great flying micro heli stock or CCPM. Get one!! Watch out Raptor!
Here is where I have my bellcrank compared to the tail in neutral.
My tail servo. Again, I cut the mounts off when I put in in my Hornet heli so I cut a simple square out of carbon fiber and CAed it to the case.
My polycarbonate ring broke after I crashed into the basement wall :) So as I looked for a simple solution I found a Twisty-tie! We all know how strong they can be! Use a small piece on the front one too for same geometry.
Here is my setup for now. I will remake a lower swash in polycarb soon. The anti-rotation mount is made of poly and cut manually on the milling machine.
1-28-05
Need a printed out version for the anti-rotation guide? Click Here for the dxf version. Remember this is for sharing only!
Total time from CAD (which took the longest) to machining (had to do it twice) 3:28 min....wow.
FIRST DOUBLE-SIDED PRECISION PART!!! Wanna See the Movie??? CLICK HERE
Scotch Double-Side Tapes holds it down. Here is the stock. A frame vendors sign; a wonderful clear piece of polycarbonate :)
I started by drilling a hole in the center so I could flip the part over and still find the center. Here the top apart is almost done. It cuts with easy.
After flipping the part, I stuck the drill bit back in and lined it up. The lower part was then cut. I got greedy on the first one, trying to cut it too fast and it snapped. The machines will let you know who is boss :)
On the lathe to give the edges a smooth finish.
120 CCPM drilling.
Here is the completed swashplate lower half. The bearing fit is "beyond" perfect. I had to tap it into place.
On the heli. The antirotation mount was also made with polycarbonate but manually.
Awesome, awesome, Awesome!
