thank you so much i will check with my parents soon.
Micro quad build help
- Thread starter airhawk
- Start date
Around a month to a month and a half ago. I pre-ordered mine directly from Andy Shen when he announced it, so I had it at the beginning of December.
There really is no comparison to make there: they are two separate classes of quadcopter.
Some people consider the 180 quads size part of the Micro class but really they're not because you can easily run 2204 motors on 4" props and at that point those copters perform just like their bigger brothers. They can easily carry gopro cameras and they make excessive thrust (we're talking in excess of 9:1 thrust/weight ratios). Not to mention they tend to weigh only slightly less than comparable 200-250mm size quads.
My lightest 4" build is a Mitsuko 4 and it is 250g without the battery. My Tweaker FPV Addiction is 311g without the battery. For comparison, my Twitchity Acro Quad (235mm) with FPV pod is 300g without battery, my Blackout (220mm) was 320g without battery. And then you have oddballs like my Shrike which is a 185mm quad but designed for 5" props and 2204 size motors, it was 275g without battery, and obviously makes tons of power for its size/weight.
I consider the real micro class to be the ~130mm 3" prop copters, which even with 1306's haven't quite reached that performance level of their bigger brothers yet. Even when you start seeing 9:1 thrust/weight ratios from these guys, they will still have trouble carrying HD recording cams because 50-75g increase in mass makes a much bigger performance impact on these when compared to copters running 4/5/6" props and power systems.
Funny...I was at a racing event where they had a 150 class. The guy who won was running a 180. :-( Then again it was that race that inspired me to build my 150 which I totally love.
Yeah that's not really a fair battle.
Maybe someday the 3" propped 150 size quads will catch up when there are more motor/prop combos on the market, but then you'll also have to start running more battery to supply the amp draw. At which point I think it is a battle of diminishing returns, especially since the 150 and smaller size market seems to be growing from the attraction to light weight quads and the fear of the FAA's registration requirement over 250g.
In the group of guys I race with (MultiGP RotoRacers) I was one of the first to go to a 180 size machine with 4" props. I ran my Tweaker FPV Addiction in the unlimited races all the time, and power wise it didn't give up much compared to the 220mm and larger machines even on some of the more open tracks. That was back when I started with 2204 2300kv Cobras and 4045 bullnose HQ's. Won plenty of races with this setup. Many of the guys are now building/racing 4" 180 class quads because they do perform well, and with smaller tighter venues like the XDC races in vegas the smaller copters are more agile and easier to thread through smaller gates.
Now we've got several different flavors of 4" prop including 4045 triples and the motor choices have exploded to the point where 2204/2205 size motors come in higher kv's like 2500/2633/2700/2800/2950/3200. Rotorgeeks has test data which shows their 2205 2700kv motor makes 920g of thrust on 4040 triples at 28A. Thats a lot of thrust for one motor! Even some 1300mAh high C batteries tend to sag at those amp draws (when multiplied by 4 motors).
Those will work good both on 3S and 4S, so I would say go for them. I have them on my Shrieker
Nathan_116
Member
If you want to save a few bucks you could get the deformation insect 130 off of banggood (free shipping but it will take ~2 weeks to get to you). I have followed a guys reviews and build on youtube and he is super happy with it.
Also, the flip32 from rtfquads is only $15 and in my opinion has a much more convienient layout than the naze. It is an f1 chip, but id oibt you wiould notice the difference as you arent runnig all the extras like gos and all.
Nathan
http://m.banggood.com/Deformation-I...Kit-QAV-Quadcopter-Multicopter-p-1009504.html
Also, the flip32 from rtfquads is only $15 and in my opinion has a much more convienient layout than the naze. It is an f1 chip, but id oibt you wiould notice the difference as you arent runnig all the extras like gos and all.
Nathan
http://m.banggood.com/Deformation-I...Kit-QAV-Quadcopter-Multicopter-p-1009504.html
I was reading andy shen's blog post about the shrieker an he prefers the 1306 but i may just use it on a 750 3s
