5" C-Punk Racer sub 250g
By Rotorenpilot on Feb 09, 2024
Big shout out to EyeFly from Germany, great design. I originally emailed them for a Vista version of the original, but while building quickly decided to make a few of these, as it's just a very versatile base.
To be super light and also to enhance the "racer" concept I thought a "quick and dirty" analog build with a fun canopy would be just perfect as a "test proof of concept".
I still want to build the Vista, and maybe even remix this concept for a more durable freestyle version, but for now I'm really enjoying the look of this one.
Thank you to Mark Kotlowski for the cool canopy design.
So I just gave it a hover and one of the first things I added after was an expo on the throttle to lower..or better, to soften the thrust. It was intense to say the least, will add some video later.
With regards to weight: weighing in at 141 grams, and flying pretty snappy with a 3S battery, staying comfortably under 200grams. With a 4S 850mAh or even 930mAh it's a bit heavier, but still a good bit under 250grams.
I did not find a great spot for the capacitor, so I'll add a little bracket to protect it soon... I've had some issues with capacitors breaking off in the past to say the least.
Here's a complete recipe (happy cooking):
- frame and canopy are printed and links are in this post
- FC and ESC are an AIO from JHEMCU as listed below
- Motors are lannrc 2004 3000Kv
- Receiver is a BetaFlight nano ELRS with ceramic antenna
- Video transmitter or vtX is an HGLRC Zeus nano 5.8 ghz analog transmitter with a max output of 350mw
- Camera is a RunCam nano (4)
Photos
Part List
Flight Controller |
JHEMCU Updated GHF411-HD AIO F4 OSD Flight Controller and Built-In 40A Bluejay 3-6S 4IN1 ESC
(43 builds)
Pyrodrone.com
|
$53.99 |
Motors |
4 x Frames
All FPV Frames
1.2 Inch Frames
1.4 Inch Frames
1.6 Inch Frames
1.77 Inch Frames
2 Inch Frames
2.5 Inch Frames
3
Cubefpv.com
|
$71.32 |
Propellers |
GEMFAN Racing SL5125-3 Super Light Durable 3 Blade Propeller (Set Of 4)
(2 builds)
Fpvfaster.com.au
|
See Site |
Could i get complete list of parts, including an analog camera and edgetx receiver
No problem, glad to help
So the price is not super accurate, as deals often fluctuate, but I'll try (I try ordering from stores like Pyrodrone, but often times just find better deals on AliExpress...😐)
- FC/ESC around $50
- Motors ~ $40
- Video transmitter ~ $20
- receiver ~ $10
- camera ~ $15
- frame parts (tubes, glue and plastic) ~ $10
All in all I would say around $150, but somethings to keep in mind are that I like waiting for deals and I often buy in bulk, which can help pushing the price even further. I know the video transmitter for example has gone up in price since I bought this one, but the receivers can be purchased in bulk for as low as ~ $6.-
My current favorite batteries are GNBs...but I did the math the other day and actually found Tattus to be around the same price and sometimes even cheaper. CNHLs are the cheapest and I have some...but they are not my favorite. So batteries are adding another 15 to 20 bucks, depending on how much flight time you're looking for.... honestly I've yet to run down a battery on this rig. So far I get close to ten minutes of flight time with batteries still popping back to 3.6 even 3.8 Volts per cell after unplugging. I'm using 4S around 850mAh
please could you share dvr
I don't know how to thank you for this post.Really, I'm very pleased by this post. Whoever wrote it was a great person.Thanks for telling us about this.Thank you for being ready to share what you know with us. quordle today
bro i am a beginner will you recommend me this frame for racing and if yes please could you share 3d printed parts files and dimension of tubs for this build and is there any other to contact you or talk with you please
Hi, no problem. To be honest, I've only been in the hobby since fall last year, so I'm not in any way a "long term authority" on the subject, just an avid builder with a humble background in electrical engineering.
Now with regards to your questions:
I'm not a racer, but from what I've seen on YouTube (Alex Vanover, Min ChanKim and the likes), this build seems to check all the boxes. Let me explain
--> easy to replicate, due to low frame cost - check
--> super stiff and rigid - check
--> very light and responsive - check
--> true X geometry - check
--> also it's analog
I tried this with a 3S and 3 inch props, since I didn't have 5 inch t-mounts when I finished building and it was already so powerful I put an expo on my throttle to be able to sort of "tame" the thrust ratio.
To me it's a pretty good candidate for racing, but again, I'm not an expert.
With regards to 3D prints --> everything is in the description, with the exception of the capacitor protector I re-mixed, and they are all on thingieverse.
For private messaging you are welcome to use rotorbuilds messaging service and if need be we can figure something out in addition.
So great to see your build on here, thanks for sharing! Looking great with the canopy :-) Also thanks for the shoutout!
Would be very interested in your longterm experiences with the LANNRC motors. I hear they break quite easily sadly in a crash - thats why i mainly use them for my LongRange-builds - that i don't crash just as often .-)
Yes, those long range projects on your page are pretty cool. I love the forest video of that one (I think the deadcat design).
The one (I call it the hourglass, I think you refer to it as "open box") frame I would like to try next is this one shown here https://www.eyeflydesigns.com/#tubwidex
(tubular wide X..?). It looks symmetrical and perfect for freestyle, not sure about the rigidity, but if it's anything close to the full box design, it'll be great. I think it's either 4 inch, or 6 inch... I'm thinking the 4 inch version might be more fun for freestyle with the lighter motors.
Yes, this version is indeed great for freestyle. The only downside is that it takes a bit longer to build the base frame compared to the TrueX-version i've built after - so in case of damage to the frame switching them out takes a little longer. To further improve on this, i've built the "Wide-X box" series - there you have all your electronics on a standalone cage that you can easily switch over to a new core frame. However i agree that the hourglass-style frame looks nicer :-)
Anyway, for the hourglass "WideX" version i do have a 4", 5", 6" design ready. I've just uploaded the 4" version for you here: https://www.thingiverse.com/thing:6481335
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Great looking build! Looks like something out of the mad max universe. Thanks for the great write up, I think you convinced my to make my next build an EyeFly tubular