CP conversion to a HDX300 or ?

[Ben Hedrick]

I own a CP Pro and now a Trex 450SE and of course I LOVE the 450SE but I am not quite ready to give up on the CPP. I have seen complete conversions of a Blade CP to a HDX300 or something like it and I was wondering if this is a viable option? Can I buy the HDX300 kit and use all of my CPP electronics, servos and radio to have a "better" helicopter or would this just be a waste of time and money to try and convert it?
Thanks in advance for any advise.

Ben

[Gino CP]

(Double post, please delete)

[Gino CP]

You have several options for a belt tail CP/P.

1. HDX300

2. Compy 300 complete belt tail airframe ($82!) www.aero-fever.com, www.heli-fever.com

3. Freestyle Belt Tail kit ($100) www.freestyle-hobby.com

4. A custom CF frame using HDX300 and Compy 300 parts by Serg of
www.rcgroups.com.

5. A J-Team "fiberbody" with 12mm boom holder and a mix of Compy 300 and TRex parts. Basically a Compy 300 with the fiberglass frame.

[Ben Hedrick]

So can I buy one of these frame kits and then use my servos and 3-1 setup from my CPP and fly? Or do I need all new servos, gyro, receiver, etc.?
Or I was thinking just to upgrade my head unit to one of the full cnc setup's and just keep the basic CPP frame. I have already upgraded to the superskds. How about a twin tail motor setup and an aluminum tailboom too?

Thanks, Ben

[slikrx]

Gino nailed it.

The one thing I would add is not to bother with the electronics from the CPP. Maybe reuse the servoes, but that would be it.

A new Tx so that you can program and adjust things.

If you're looking to upgrade the heli, it would make sense to get a brushless motor (especially since it would alse need to drive the tail and lift the extra weight) This means an ESC is needed.

And if you're doing this, an external gyro is pretty much a must, so between the ESC and gyro, your 3 in 1 (or 4 in 1 for the regular CP) is no longer needed.

I was going to do the "upgrade slightly" thing, and I just ended up bying all new "upgraded/better" parts and just putting it all together, and leaving my stock CPP alone. :oops:

[Ben Hedrick]

It is looking more like, keep my CPP as a CPP and fix things as required... I was wondering if I replaced the head to an cnc setup, if it would clean up the "sloppyness" and make it smoother...??? But maybe it's not worth the $100.

Thank for everyones help, Ben

[Ben Hedrick]

This is what I was considering replacing now on my CPP and keeping the rest as is.

http://www.cnchelicopter.com/servlet/the-396/%28hot%29-3dx300-HDX300-Blade/Detail

Ben

[slikrx]

This is what I was considering replacing now on my CPP and keeping the rest as is.

http://www.cnchelicopter.com/servlet/the-396/%28hot%29-3dx300-HDX300-Blade/Detail

Ben
From what I can glean from this site (and hopefully be experience in the next couple weeks) is that replacing the radio system is the single biggest improvement you can make.

I believe that a CNC head can make a big difference, but maybe not as much. I have that exact head you showed, sitting in a box to be returned & exchanged. the swash was sticky, and the blade grips/feathering shaft were pretty "notchy". Also, there seems to be a problem with the shafts they provide- they seem to bend easily.

http://www.helifreak.com/viewtopic.php?t=34727&highlight=

I picked up the microheli head and out of the box it was a better feeling part. Then again, it costs $137 :arggg: Buzzkill has it (I think) and seems to like this one.

http://www.helihobby.com/html/micro_blade_helicopter.html#PARTMH-CP002HS3

http://helihobby.com/commonImages/partsMain/MH-CP002HS3.jpg

[Gino CP]

The kits I listed are best used with a brushless motor because of the demands of a belt tail. Some of the kits also require the ability to reverse the servo directions. These kits are to provide you with a belt tail.

If you don't need a belt tail, you can look at Microheli CNC stuff. There are nice aluminum frames too. Or use a J-Team fiberbody with as your airframe with the 5mm tail boom mount. But do check if you need servo reversing ability for this.

Please note that the stock EFlite transmitter cannot independently reverse collective and throttle. This means that though the transmitters has servo reversing in front, you may be able to get cyclic working right, but your collective reversed. Like I said, you cannot independently reverse throttle and collective.

This is a mounting problem for airframes that utilize a rotary servo layout like the Compy 300.

[txflyer]

wrong thread for my post..please delete

[Ben Hedrick]

This is what I was considering replacing now on my CPP and keeping the rest as is.

http://www.cnchelicopter.com/servlet/the-396/%28hot%29-3dx300-HDX300-Blade/Detail

Ben
From what I can glean from this site (and hopefully be experience in the next couple weeks) is that replacing the radio system is the single biggest improvement you can make.

I believe that a CNC head can make a big difference, but maybe not as much. I have that exact head you showed, sitting in a box to be returned & exchanged. the swash was sticky, and the blade grips/feathering shaft were pretty "notchy". Also, there seems to be a problem with the shafts they provide- they seem to bend easily.

http://www.helifreak.com/viewtopic.php?t=34727&highlight=

I picked up the microheli head and out of the box it was a better feeling part. Then again, it costs $137 :arggg: Buzzkill has it (I think) and seems to like this one.

http://www.helihobby.com/html/micro_blade_helicopter.html#PARTMH-CP002HS3

http://helihobby.com/commonImages/partsMain/MH-CP002HS3.jpg


slikrx,
That is interesting. I am glad that you told me this. I looked up the Microheli head and for the little bit more money, it might be worth it.

Thanks, Ben

[Buzzkill]

I like the Microheli head. Its saved me more than $137 ( I paid $125 for mine at a LHS) in broken parts. I've had about 8 crashes since I got it. Its a PITA to set up and get tracking right though. Also, dont use flybar weights with that head. Watch the ball links there too tight. If you get one and need help PM me. I'm going to try and get Slikrx to do a compy build thread (hint hint). :wink:

[Ben Hedrick]

Buzzkill,
Thanks for the information and I will let you know if I do end up getting one and yes I'd love the insights to setting it up.
The weakest link for me has been the spindal shaft and the main rotor shaft. I bend those at a drop of the hat... Or drop of the CPP... :mrgreen:
I've only gone through one tail motor but I've gone through atleast (5) main shafts.

Thanks, Ben

[Gino CP]

I never replace my main shaft and spindle. I just put them on a drill chuck and bend them back. I use my thumb to bend the main shaft. I use an adjustable wrench to bend the spindle. I spin them slowly to check aligment.

[Gino CP]

I never replace my main shaft and spindle. I just put them on a drill chuck and bend them back. I use my thumb to bend the main shaft. I use an adjustable wrench to bend the spindle. I spin them slowly to check aligment.

[Ben Hedrick]

I never replace my main shaft and spindle. I just put them on a drill chuck and bend them back. I use my thumb to bend the main shaft. I use an adjustable wrench to bend the spindle. I spin them slowly to check aligment.

Wow. I will try that. I've got plenty of spares to try this with... I've kept most of my crashed parts. It's kind of funny...

[Buzzkill]

Ben: I hear ya. To bad there wasnt a way to use bearings with a larger inside diameter so using a lager diameter mainshaft would be possible. I wonder if there is a larger main shaft that could be used with the CPP? As long as the maingear was the same and the bearings would fit in the frame you could dremel the main to length and bore out a CNC head so it would work. In theory anyway. Anyone know of a heli that uses a larger diameter main shaft with the same size maingear as the CPP ? O'well I should be getting a better heli in the next 3-4 weeks so I think I'll leave this one alone lol.

[carlo_the_wonder_frog]

I Think the main gear from a Hummingbird heli will work, I don't remember the exact model , but my brother has one and it works better than stock.