Diatone Taycan MC-X (CUSTOM)
By hoodwinked on Jan 22, 2021
This was a challange for me, the goal was a pretty looking but great flying cinamatic quad, that preforms as intended, supurbly.
everything id very neat and tidy with minimal solder joints showing, with only the top pads being used for leds.
The capacitior is hard mounted to the top plate with a zip tie to keep it out of the way.
The props do sit a bit to high in the duct so their is a gap between the prop and duct, possibly loosing efficency their.
hover and los it preformed great on stock bf pids
fpv view is clean and crisp, good detail, and lots of range with the 1.5w vtx
unfortuatly i didnt take photos of the process as i was in a flow building it.
feel free to ask questions.
oh and i left 4 screws off, by accident as seen in the photos, for the top plate. i did one final check of the componets.
Photos
Part List
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I have a very similar build and looking to add the unifi pro 32 hv, how did it fit?
any idea what sort of payload this can handle?
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I love the look of the build but I agree that the 1507 motors are about 3 mm taller than needed. (Especially for a ciniquad) Using motors that are shorter would allow for the props tips to be closer to the duct walls, there-by reducing prop-tip vortices. With that expect a reduction of 3-7 % in prop losses and a much quieter flight. Besides, all the added motor height does is improve the high-end power while making the motor less efficient overall. (Great for punch-outs but not for battery life)
I'm not sure what that 1507 motor weights as its not listed on the mfr website. Through a 1404 motor should be lighter and draw less current but may not have the low RPM torque to push that multiblade propeller. Now a 2204 would have much greater low end torque and weigh around 14 grams, which i " guesstimate" to about what the 1507 weighs...
So have a look at these: https://www.racedayquads.com/products/brotherhobby-vy-2004-3150kv-motor
After all, big props require more bottom end torque to get that thing spun up or brake. (motors brake to induce differential torque)
So to recap...
-Use shorter / wider motors.
-Keep the propeller inside the duct wall, not the duct lip.
the yv 1507 are night and day better than what comes on the rtf.
The Brotherhobby 2204's (@3150kv) can push over 1036 grams of thrust using 4S. While the 1506's (@4150kv) push 695 grams of thrust at 4S. However the big difference is mass... By 2 grams, the 2204 is lighter or 8 grams total for all four motors.
I'm not sure what the stock motors were but they must of been garbage.
pay attention to the prop sizes in those test and look for rpm
Looks like the brotherhobby motor is pushing a 5" prop while the 1507's are pushing 3's. while you'd lose 1k RPM you'll gain battery life and motor bottom end. After all this isnt a racing quad but a Cini but if RPM i really an issue then look for an 1404 motor @ 4-5k. Xing has a few nice ones that are great.
https://shop.iflight-rc.com/index.php?route=product/product&product_id=895
the 1507 are 44k rpm and 2004 are 29k rpm thats a huge difference in power!
as this is not my first cinawhoop, the 1507 are 100% better than other motors i have tried for this specialized category. the increase in rpm drastically changes the flight character, and the 4150kv on these motors increase both throttle resolution, weight carry capacity with a minor decrease in flight time.
the prop ducts with these motors fit 3.1 inch props as well which are snug against the duct, and i have tried the T motor 3.1 inch props and have had good success, but they are noisy (obnoxious) and requires more stick input for the same movements.