Carnage 4.5" sub250g analogue

By rotormancer on Jan 21, 2023

5  139  0

New build for a new year. I really like sub250gfpv's Carnage 3.5" frame and it's my go to, but thought I could do with something a little bigger. I have some 250g 5" quads but they so fragile, hoping this will be a good compromise.

I calculate this has approximately 17:1 thrust to weight ratio at full throttle.

Have gone for a two-tone blue pink spray paint coat. 3mm blue LED strip with a 12v regular (means I need a 20mm stack).

AIO is a Foxeer Reaper v3, but it;'s

22/12/2022 - Painted the frame, two coats KOBRA and some clear lacquer, not expecting the paint to last in any case.

18/01/2023 - Pretty much complete but comes in at 251 grams. I plan to save this by shortening the XT30, replacing zip ties with fabric tape and trimming the battery strap. Paint peeling around screws.

19/01/2023 - Having issues with the provided antenna mounts. The single antenna mount gets in the way of the battery, so I took the digital/dual antenna mount and chopped the top off, this fixes the battery problem, but with the 20mm standoffs I'm using, the rear antenna causes prop strikes. I'm chopped away some TPU and have done a hover test. Hover point is at 9% throttle. I've created a quick but functional antenna mount of my own to fix this. I have also used some loom bands to stop the LED strip coming away from the arms.

Now at 244g with a 530mah 4s GNB LiHV!

21/01/2023 - Maiden done and it's an enjoyable quad. Unfortunately, awful noise on the VTX. I'm going to try a) mounting the Sixty9 the other way around, so the shield is facing the AIO and b) turning off the 12v regulator for the LEDs.

22/01/2023 - https://www.thingiverse.com/thing:5802797 alternative antenna mount for the frame, prevents the prop strike I had with 20mm standoffs and makes space for a battery. More flights today, good fun but I've found some oscillations when turning quickly, I'll try turning on RPM filtering which is something I've not played with on previous builds.

Photos

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