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Sep 17, 2019, 02:09 PM
Registered User
Thread OP
Quote:
Originally Posted by Nomad122
I am designing/building an ultra light 5 inch tubular, and I was wondering what motors you guys recommend, and perhaps even more importantly, which motors you do not recommend from experience.

I've been looking at 1407, 1408, 1507 and 1606 motors. All seem to be in the same weight range from 14gr to 16gr. If one want to go even lighter, then there are 1306 motors, but I don't think there are modern ones and I also do not know if they would work on 5inch (bi)props.

I am very interested in hearing your opinion on wider vs taller stators (eg, 1408 vs 1606 which have approx the same volume and weight).
I've no experience of running 5" on these size motors, except very old design 1804, but personally wouldn't go any smaller than 2204.
If you're careful with a light build, you can still get that super light floaty feel with tiny lipos and lightweight grippy (compared with bi-blades) triblades.

Quote:
Originally Posted by Ian444
Might be interesting to someone - Hyperlite 2204-2522KV motors on sale at Pyrodrone US$10 ea.
https://pyrodrone.com/collections/mo...v-team-edition
Good deal.
I hope this sale doesn't mean the 2204 size won't be restocked...?
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Sep 17, 2019, 06:20 PM
Brisbane, Australia
Quote:
Originally Posted by TimR74
Good deal.
I hope this sale doesn't mean the 2204 size won't be restocked...?
Looks like a random sale. But one has to wonder the future of 2204's, I'd guess sales are low.
Sep 17, 2019, 06:31 PM
Brisbane, Australia
Quote:
Originally Posted by Nomad122
I am designing/building an ultra light 5 inch tubular, and I was wondering what motors you guys recommend, and perhaps even more importantly, which motors you do not recommend from experience.
The only motors I've used for 5" in the range you are looking at is XT1406 and XT1408, which are 14.0gm and 17.2gm with full length wires. Both are very capable, run smooth and efficient, and feel like the quality of US$15 motors. The XT1408 is US$6.35 right now at xt-xinte.
Sep 17, 2019, 10:30 PM
Registered User
Quote:
Originally Posted by Nomad122
I am designing/building an ultra light 5 inch tubular, and I was wondering what motors you guys recommend, and perhaps even more importantly, which motors you do not recommend from experience.

I've been looking at 1407, 1408, 1507 and 1606 motors. All seem to be in the same weight range from 14gr to 16gr. If one want to go even lighter, then there are 1306 motors, but I don't think there are modern ones and I also do not know if they would work on 5inch (bi)props.

I am very interested in hearing your opinion on wider vs taller stators (eg, 1408 vs 1606 which have approx the same volume and weight).
I spent my first year scratch building 5" with 1407. When I went to 2204-2522kv, 850mah 4S I never looked back. A good performing lightweight 5" 200-210mm. Later, I found 2204-3022kv, 750mah 3S better still for my frame build. Maybe 1407 works well for 4" -- don't know, never worked much with 4".
Sep 18, 2019, 02:50 AM
Registered User
Quote:
Originally Posted by gc_ober
I spent my first year scratch building 5" with 1407. When I went to 2204-2522kv, 850mah 4S I never looked back. A good performing lightweight 5" 200-210mm. Later, I found 2204-3022kv, 750mah 3S better still for my frame build. Maybe 1407 works well for 4" -- don't know, never worked much with 4".
I've got Mamba 1408 4000 KV on a 4 inch quad with HQ 4x3x3 and 3S 850 mAh. AUW is just below 250 g. Throttle is limited to have a max current of about 60 A. I'll try 1306 4000 KV motors and other props (avan scimitar 4x2.4x3 and 4x2.8x3) when I can, because the large motors are just too much for the little battery.
Sep 19, 2019, 09:15 PM
Registered User
I have really been liking these emax 1606 motor for the gemfan 4" windancer props on a 160mm frame. For $13 they don't break the bank either. I am always going for wider/flatter motor stators.
Sep 19, 2019, 11:21 PM
Quadaholic
--Oz--'s Avatar
Couple guys at my work want to build quads, whats a good low cost F4 FC 30.5x30.5 mounting (los, no fpv), they both have the 30A 4n1 Racerstar REV35 35A
https://www.banggood.com/Anniversary..._warehouse=USA

It would be nice to be able to use the esc 4n1 connecting cable, if not that ok too.

I remember picking up F4 FC on ebay for $8, I dont see them anymore. tia
Sep 20, 2019, 01:18 AM
FPV Addict
Yamaford's Avatar
That's actually a great esc. I'm running 2 of them now. One is over a year old. Probably closer to 2 years. My favorite f4 if you dont need osd is
https://www.getfpv.com/lumenier-lux-...ontroller.html
Quote:
Originally Posted by --Oz--
Couple guys at my work want to build quads, whats a good low cost F4 FC 30.5x30.5 mounting (los, no fpv), they both have the 30A 4n1 Racerstar REV35 35A
https://www.banggood.com/Anniversary..._warehouse=USA

It would be nice to be able to use the esc 4n1 connecting cable, if not that ok too.

I remember picking up F4 FC on ebay for $8, I dont see them anymore. tia
Sep 20, 2019, 01:23 AM
FPV Addict
Yamaford's Avatar
What is the smallest 16x16 or 16x19 motor with m3 holes?
I'm working on a design that I planned to use 1408 with 4" but the arms are getting to long for 6mm tubes. I'll have to bump up to 8mm so I need to bump up the mounting but I dont need bigger motors. 2204 will work, I just wished I could shave just a little more.
Sep 20, 2019, 02:01 AM
Brisbane, Australia
Quote:
Originally Posted by --Oz--
whats a good low cost F4 FC 30.5x30.5 mounting (los, no fpv)
It seems the low cost ones are more scarce these days. Here's some low cost, not sure about good. Maybe the Diatone Mamba is a safer choice out of this lot.

https://www.xt-xinte.com/F4-OMNIBUS-...r-p136594.html

https://www.xt-xinte.com/JMT-F4-V3-B...r-p556349.html

https://www.xt-xinte.com/HAKRC-F405-...e-p589417.html

https://www.diatone.us/products/mamb...d14a97a6&_ss=r

https://www.fasttech.com/products/0/...ght-controller
Sep 20, 2019, 05:15 AM
Registered User
[QUITE=Yamaford;42776269]What is the smallest 16x16 or 16x19 motor with m3 holes?
I'm working on a design that I planned to use 1408 with 4" but the arms are getting to long for 6mm tubes. I'll have to bump up to 8mm so I need to bump up the mounting but I dont need bigger motors. 2204 will work, I just wished I could shave just a little more.[/QUOTE]

What do you mean too long? I've build a 4incher with 6-4mm tubes and I am yet to break an arm.

I think the 1507 from brotherhobby has both 12*12 and 16*16 mounting patterns. Alternatively you could also rotate the motor base 45degrees and attach it with just two screws.
Sep 20, 2019, 06:24 AM
Registered User
Quote:
Originally Posted by --Oz--
they both have the 30A 4n1 Racerstar REV35 35A
https://www.banggood.com/Anniversary..._warehouse=USA
Cracked one in an unfortunate direct hit crash today. It gave off quite some smoke and one FET was visibly glowing in daylight
Last edited by Markus Gritsch; Sep 20, 2019 at 06:39 AM.
Sep 20, 2019, 06:57 AM
Registered User
Quote:
Originally Posted by Nomad122
I am designing/building an ultra light 5 inch tubular, and I was wondering what motors you guys recommend, and perhaps even more importantly, which motors you do not recommend from experience.

I've been looking at 1407, 1408, 1507 and 1606 motors. All seem to be in the same weight range from 14gr to 16gr. If one want to go even lighter, then there are 1306 motors, but I don't think there are modern ones and I also do not know if they would work on 5inch (bi)props.

I am very interested in hearing your opinion on wider vs taller stators (eg, 1408 vs 1606 which have approx the same volume and weight).
See here for a recent try with (fairly new) emax RS1306Bs and a 3D-printed adapter to fit a 7 or 8 inch prop (requires drilling though): http://www.kopterforum.de/topic/8327...ich/?p=1155446

I guess my point is that there are modern 1306 motors. And the adapter thing surely works for 5 inch props as well.
Sep 20, 2019, 07:34 AM
Registered User
Any reports on the FETs of this 4 in 1 ESC? https://www.xt-xinte.com/JMT-NEW-REV...s-p666422.html

Looks identical to the Racerstar branded one, except for the different FETs.
Sep 20, 2019, 10:46 AM
FPV Addict
Yamaford's Avatar
Can you post those pictures here? I dont need yet another forum login
Quote:
Originally Posted by crteensy
See here for a recent try with (fairly new) emax RS1306Bs and a 3D-printed adapter to fit a 7 or 8 inch prop (requires drilling though): http://www.kopterforum.de/topic/8327...ich/?p=1155446

I guess my point is that there are modern 1306 motors. And the adapter thing surely works for 5 inch props as well.


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