With the aid of an actual Northrop Grumman engineer, we designed and tested more designs than we care to share. In the end, both us and the engineer learned quite a bit about how ducts perform on these mostly hovering crafts. There will be a more extensive video about it in time but you can basically view a duct as an item similar to a prop. It has just as much detail and nuance in it’s design in order to achieve any given performance. We’re designating this as the third design in the series and is far better than anything before it with improved control, power and efficiency. The rest of the details are too much to write out here…..standby for a video in time.
- Improved ‘duct-foil’ for more thrust, better efficiency and no loss of control
- Printed from PTEG which is fully heat stable
- Durability is much better than PLA but it’s still a thin print
- Brass inserts not required but included
- ~13g per duct without brass inserts
STRONGLY Recommend:- FPVCycle 2203 3450kv motors
- 4S 1100-1300mah
- Gemfan 75mm triblade cinewhoop prop
Using these on my CineSplore and my Cloud149 and the difference from stock plastic ducts to these are a major improvement to sound and performance.
Hint: before placing brass inserts in ducts, line them up on arms so pre-holes match. I pre-drilled one duct because the holes didn’t line up. If not they will oval on arms.
The V3's out perform the V2's. More predictable, smoother flight characteristics.
I asked a 'printing nerd' friend to look at these, and he said they looked really good. Maybe printed a little fast and the layers weren't sticking together as well as he would have liked but that's just cosmetic. For what we used them for they work great.
The prop line is wayyyyy off if u use anything but the 2203... I wonder if it’s like that with the v2s as well
These are the first printed duct to really impress be in overall design everything makes sense and has several improvements that I never considered. Important definitely grind so that you props don't stick or you'll fry and esc/motor, I used a dremel with the carbide infused buffing wheel it looks like a sponge tire about an inch in diameter you can do a duct in about a minute just check your prop spins freely and profit. Also I'm running now inserts and it seems like it'll be durable time will tell. Thanks Kabab!!!