Author Topic: Questions about a new build  (Read 1261 times)

Offline nelr

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Re: Questions about a new build
« Reply #15 on: April 22, 2018, 07:08:47 PM »
Oh, and another thing. If you do buy motors in the 980 to 1400 kv range, don't buy esc's larger than 20A. Also, if you decide to go for the F3 or F4 FC you only have to reprint the base, back feet and maybe the GPS / receiver holder. Your prints look awesome by the way.

Offline eqpirate

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Re: Questions about a new build
« Reply #16 on: April 22, 2018, 07:12:32 PM »
yeah, I was thinking about looking at the f3 build. I dont like that the naza doesnt support the ultrasonic sensors. I think I may just end up doing that and reprinting what I need. The printing is not a big deal, just got a new i3 MK 3 and this thing kills everything that I throw at it, and fast. I was hesitant going with such a high kv motor, but if I plan on using the original folding props, youre right ill need a lower KV motor for the torque of having such large props. Thanks for pointing that out, I hadnt even thought of it! Ill also be looking in to f4 boards and 4-in-1 escs this week I guess!

Thanks for the advice!

-Jake

Offline correia5022

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Re: Questions about a new build
« Reply #17 on: April 27, 2018, 12:24:40 PM »
Hello.

I've been anqxious to start my own build, but unfortunatly i work in a foreign country now, so i think it will be a while to do it.

I've been researching and reading a lot, about motors, esc's, etc, and i want to share what i've lerned with you, so i can watch your project be completed.

The idea of this build is to be agile and fast but having some flytime as well.
I've come up with some options:

More torque, less battery usage, more flytime:
--Motor 2212 980KV, with a sweet spot using a 3S battery and an 8inch prop up to a 10inch prop. Draws up to maybe 15amps
  -> A budget and very nice motors are the racerstar ones. Good reviews for such a cheap price. check them here: https://www.banggood.com/4X-Racerstar-Racing-Edition-2212-BR2212-980KV-2-4S-Brushless-Motor-For-350-380-400-Frame-Kit-p-1083199.html?rmmds=search&cur_warehouse=CN
    ( there are also the 920 Kv but are weaker, not lifting very much weight)
(Also, there are the 2312 motors, having a bit higher speed and torque, but with higher amp drawn)

More speed, more amps, flytime up to 7min(?):
--Motor 2205, 2300KV, these are beasts, go up to 4S batteries, max 5 inch prop, but with much current usage.
 -> As well, some budget ones are the racerstar, good reviews. Check them here:
https://www.banggood.com/4X-Racerstar-2205-BR2205-2300KV-2-4S-Brushless-Motor-2-CW-2-CCW-For-QAV250-ZMR250-260-Multirotor-p-1066837.html?rmmds=search
 -> the Emax you shown are also very good

As for speed controllers:

-Top ones: (to use with 2205 motors)
https://www.banggood.com/4X-Holybro-Tekko32-35A-BLHeli_32-ESC-Dshot1200-2-6S-Build-In-Current-Sensor-For-RC-Drone-FPV-Racing-p-1244743.html?rmmds=search&cur_warehouse=CN
https://www.banggood.com/4X-HAKRC-BLHeli_32-Bit-35A-2-5S-ESC-Built-in-LED-Support-Dshot1200-Multishot-for-FPV-RC-Drone-p-1280430.html?rmmds=search&cur_warehouse=CN
(Probably out of stock)
https://www.banggood.com/4X-Racerstar-PG30-BLHeli_32-30A-3-4S-Proshot-Ready-Brushless-ESC-for-RC-FPV-Racing-Drone-p-1279815.html?rmmds=cart_middle_products&cur_warehouse=CN
ALL in ONE option:
https://www.banggood.com/Holybro-Tekko32-35A-3-6S-Blheli-32-4-In-1-Brushless-ESC-support-Telemetry-for-FPV-Racing-30_5x30_5mm-p-1271329.html?rmmds=search
https://www.banggood.com/Racerstar-Tatto_S-35A-4-In-1-2-4S-STARM-Blheli_32-Dshot1200-Ready-Dual-BEC-FPV-Racing-ESC-p-1165068.html?rmmds=cart_middle_products&cur_warehouse=CN

Good ones for the 2212 motors:
https://www.banggood.com/4X-DYS-XSD-20A-3-4S-ESC-BLHeli_S-Supports-Dshot600-Dshot300-For-High-KV-Motors-p-1187166.html?rmmds=search&cur_warehouse=CN
https://www.banggood.com/4X-Racerstar-RS20A-20A-BLHELI_S-OPTO-2-4S-ESC-Support-Oneshot42-Multishot-for-FPV-Racing-p-1064324.html?rmmds=search&cur_warehouse=CN
ALL in ONE options:
https://www.banggood.com/Racerstar-RS20Ax4-V2-20A-BB2-48MHz-Blheli_S-2-4S-Opto-Oneshot42-Multishot-4-in-1-ESC-for-FPV-Racer-p-1080541.html?rmmds=search&cur_warehouse=CN
https://www.banggood.com/LDARC-Kingkong-KK-Flytower-Part-20x20mm-20A-BLheli_S-2-4S-DShot600-4-In-1-ESC-for-RC-Racing-Drone-p-1243022.html?rmmds=search&cur_warehouse=CN

Of course you can use he 35A esc's on the 2212 motors...

Offline correia5022

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Re: Questions about a new build
« Reply #18 on: April 27, 2018, 12:38:10 PM »
One thing i forget to mension on ESC's, avoid littlebee/furibee, according to some reviews they are noisy, and can affect the gyro/mag..


About Flight controllers.

Well, concerning lack of space in the mavic, i probably recomend the all in one board with esc included.

As for simple ones (and cheap and reliable), go for the Omnibus F4 V3, the ones without current sensing (easier to connect/solder and also easier o include extras such as sonar and gps), or if you really want current sensing coming from the FC, go for the F4 PRO V3 ones.. but harder to connect extras (but possible, at least the gps)

- without current sens. https://www.banggood.com/Eachine-Wizard-X220S-FPV-Racer-Customized-Version-Omnibus-F4-V3-Betaflight-3_0_1-Flight-Controller-p-1177121.html?rmmds=search&cur_warehouse=CN

- with current sens: https://www.banggood.com/BF3_1_5-Omnibus-F4-V2-Flight-Controller-STM32-F405-MCU-Integrated-OSD-Built-in-5V-BEC-Current-Meter-p-1143258.html?rmmds=search

ALL in ONE options:
https://www.banggood.com/Racerstar-TattooF4S-30A-BLHELI_32-4in1-ESC-5V-BEC-w-F4-Flight-Controller-AIO-OSD-Current-Sensor-for-RC-Drone-p-1184869.html?rmmds=search&cur_warehouse=CN
https://www.banggood.com/Holybro-Kakute-F4-V2-Flight-Controller-Tekko32-35A-4-In-1-Blheli-32-3-6S-Brushless-ESC-p-1271330.html?rmmds=search&cur_warehouse=CN

** for the all in one options, i dont know if is possible to connect extras, as there are so few pads.. if you go for one of these, research first

Offline correia5022

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Re: Questions about a new build
« Reply #19 on: April 27, 2018, 12:58:51 PM »
Cheap combo i would go for: (wich i actually own, only need 3d printed mavic and ..time)

FC
https://www.banggood.com/Eachine-Wizard-X220S-FPV-Racer-Customized-Version-Omnibus-F4-V3-Betaflight-3_0_1-Flight-Controller-p-1177121.html?rmmds=search&cur_warehouse=CN
or the same:
https://www.banggood.com/Omnibus-F4-Pro-V3-Betaflight-Flight-Controller-Built-in-OSD-Barometer-SD-Blackbox-for-RC-Drone-p-1163085.html?rmmds=search

Motors
https://www.banggood.com/4X-Racerstar-Racing-Edition-2212-BR2212-980KV-2-4S-Brushless-Motor-For-350-380-400-Frame-Kit-p-1083199.html?rmmds=search&cur_warehouse=CN

ESC's
https://www.banggood.com/4X-Racerstar-RS20A-20A-BLHELI_S-OPTO-2-4S-ESC-Support-Oneshot42-Multishot-for-FPV-Racing-p-1064324.html?rmmds=search&cur_warehouse=CN
OR ALL IN ONE (maybe best option)
https://www.banggood.com/Racerstar-RS20Ax4-V2-20A-BB2-48MHz-Blheli_S-2-4S-Opto-Oneshot42-Multishot-4-in-1-ESC-for-FPV-Racer-p-1080541.html?rmmds=search&cur_warehouse=CN

i have this ones, a bit better for individual ones, but out of stock
https://www.banggood.com/4-PCS-Racerstar-RS20A-Lites-20A-Blheli_S-BB2-2-4S-Brushless-Motor-for-FPV-Racer-p-1105427.html?rmmds=search&cur_warehouse=CN


Other stuff needed i recomend:

VTX: Eachine TX801 5.8G 72CH 0.01mW 5mW 25mW 50mW 100mW 200mW 400mW 600mW Switched AV VTX FPV 
VIDEO: Foxeer HS1177 V2 600TVL CCD 2.5mm/2.8mm PAL/NTSC IR Blocked Mini FPV Camera 5-40V w/ Bracket
RADIO and receiver: I have the cheap but good FlySky FS-i6, with the FS-iA6B Receiver
https://www.banggood.com/FlySky-FS-i6-2_4G-6CH-AFHDS-RC-Transmitter-With-FS-iA6B-Receiver-p-983537.html?rmmds=search&cur_warehouse=CN
GPS: High Precision Ublox NEO-M8N GPS (the best)
BEC: DC-DC Converter Step Down Module UBEC 3A 5V / 12V BEC For RC Airplane FPV for RC Drone FPV Racing
or if you intend to use a PDB with current sensor:
Matek FCHUB-6S Hub Power Distribution Board 5V & 10V BEC Built-in 184A Current Sensor for RC Drone
https://www.banggood.com/Matek-FCHUB-6S-Hub-Power-Distribution-Board-5V-10V-BEC-Built-in-184A-Current-Sensor-p-1147591.html?rmmds=search&cur_warehouse=CN
Antena: TBS triumph BlackSheep  5.8G antena RP SMA Trevo de 3 Lāmina transmissor mushroom antena para FPV RC Quadcopter

Offline eqpirate

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Re: Questions about a new build
« Reply #20 on: April 27, 2018, 04:38:00 PM »
Thanks for the input! I think after reading a lot of what people are saying I am going to definitely go back and get smaller motors, especially for flight time. I want the folding props like the original mavic so I will have to do some thinking about motor size and torque in relation to the props! Work has been so busy lately as we had a huge stroke survey at the hospital and Ive been putting in a ton of hours so I haven't had time to get back into researching the drone. I guess I should start reprinting the drone parts for the other version since I am no longer doing the naza. I guess it will also be easier to get a board with the ESCs included to save space/weight. So those are the F4s? Also if I end up doing this I have to purchase separate GPS and magnometers right?

Thanks for all the help guys!

-Jake

Offline correia5022

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Re: Questions about a new build
« Reply #21 on: April 28, 2018, 12:03:00 PM »
Hi.

Yes, you can go with the F4 FC boards all-in-one, as i mentioned earlier, and buy the GPS module (thay all come with magnometer).
The F4 boards are faster processing, and the GPS module i recommend is the M8N (faster as more accurate), so this will be lighter and more simple to solder and assemble

Offline correia5022

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Re: Questions about a new build
« Reply #22 on: April 28, 2018, 12:08:16 PM »
If you go with the all-in-one boards you wont need to buy the PDB, current sensor and ESC's, the Racerstar TattooF4S 30A is very nice since it has only 1 "layer", the Holybro Kakute on the other hand has slighty better reviews, but it stacks 2 boards.
Either way, any choice you make, you'll get a really nice board.

Offline eqpirate

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Re: Questions about a new build
« Reply #23 on: May 01, 2018, 11:26:31 PM »
Thanks Ill look into that! Any particular vendor you have in mind?

Offline correia5022

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Re: Questions about a new build
« Reply #24 on: May 02, 2018, 06:30:47 AM »
If you are willing to wait, those links from banggood should be fine (actually, they have a priority line shipping for a few extra bucks, they deliver in a maximum of 2 weeks, wich is acceptable imo).
otherwise, it depends in your location... US, UK, EU, AUS?

Offline eqpirate

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Re: Questions about a new build
« Reply #25 on: May 06, 2018, 08:46:10 PM »
USA, that actually sounds like not a bad idea. Maybe this evening I'll get on bangood and look for some stuff. Thanks for the info!