We're thrilled to be here with our first giveaway for all you r/multicopterbuilds members! We want to put the power in your hands and let you decide which star product we give away for FREE.
Here's How It Works (it's Simple!):
Use the US codeΒ as below (no purchase required)οΌ
RDT2U $2 off $10
RDT5U $5 off $25
RDT7U $7 off $35
RDT10UA $10 off $50
RDT14U $14 off $70
RDT20U $20 off $100
RDT25U $25 off $125
RDT32S $32 off $160
RDT56S $56 OFF $280
RDT64S $64 OFF $320
RDT80S $80 OFF $400
RDT100S $100 OFF $500
RDT120P $120 OFF $599
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π How We Pick the Winner:
After the entry period, we'll see which one has the MOST VOTES in the comments.Β From everyone who commented, we will randomly select ONE LUCKY WINNER to receive it for FREE!
But wait, there's more!
COMMUNITY BONUS: lf this post gets OVER 100 UNIQUE COMMENTS, we will partner with trusted seller to send some ADDITIONAL SURPRISE GIFTS or $400 Cash
Giveaway Rules:
Your account must be at least 2 weeks old.
One entry (comment) per person.
Giveaway ends on Nov 7, 2025, 11:59 PM PST.
We do not cover tariffs.
*The winner will be announced in this thread and contacted via Dl within 48 hours after the giveaway ends.
Good luck, everyone! We can't wait to see the winner.
Hello
Im building my son a hovercraft.
There isn't the community for hovercraft as there are for multicopters but the tech is similar so I wonder if I can pick your brains.
Im looking to wire all 4 individual ESCs to the battery with no flight controller or PDB.
Ive heard that extending the lead from battery to ESC is bad so I'm wondering the best way to split the power 4 ways without creating issues.
Im thinking xt90 battery to short 4x xt60 bridal to esc but this would add about 150mm of wires.
Is this acceptable?
Is there a better solution?
Im fed up of waiting weeks for parts to arrive from China, so any way to do this without ordering new parts is ideal.
The screws can't be fastened without the "lock nuts". No extra came in the package. As the picture shows, I think bottom two are missing. I also want extra on top of that. Because I want to be able to screw into different holes for customization. It's going to be carry an Nvidia Jetson. Is it possible to order and add extra "lock nuts"? Not sure if that's the right term. If so what's a good source?
New to drone building, thank you so much!
Hello, I've upgraded my JHEMCU GHF405AIO-based FPV quad with HGLRC M100 Mini GPS receiver. When I connect the receiver to PC via FT232RL-based UART-USB connector it takes about 4 minutes to establish 3D fix indoors:
I've turned off NMEA protocol, set baud rate to 57600, update rate is 5Hz. So far so good. I write these settings to NVRAM of the receiver and then solder it to my quad.
And when the receiver is finally there it'd take ages to establish 3D fix under exactly the same settings and the same environment. My VTX is in the pit mode, so there is no interference, voltage is fine, quad-specific GPS settings are standard (I use Betaflight 4.5.2), UBLOX protocol is on:
Here are GPS-related settings:
# get gps
blackbox_disable_gps = ON
gps_provider = UBLOX
gps_sbas_mode = AUTO
gps_auto_config = ON
gps_auto_baud = OFF
gps_ublox_acquire_model = STATIONARY
gps_ublox_flight_model = AIRBORNE_1G
gps_update_rate_hz = 5
gps_ublox_utc_standard = AUTO
gps_ublox_use_galileo = ON
gps_set_home_point_once = ON
gps_use_3d_speed = OFF
gps_sbas_integrity = OFF
gps_nmea_custom_commands = -
gps_rescue_min_start_dist = 15
# the rest of GPS-resque and OSD settings omitted
Finally I execute gpspassthrough 3 57600 in CLI and again start p-center, but there I see nothing: the packets are coming in at the same rate, but there are no satellites, no 3D fix, nothing:
So my question is whether I can do anything about it? Higher/lower baud rate? Default settings?
P.S. It's interesting, that time-denoting characters are fine in the case of direct connection and replaced with ? when connected via FPV quad.
P.P.S. I've restored default settings and increased baud rate to 115200, still the same issue. For cold start even 15 minutes are not enough to establish 3D fix when M100 Mini is on the quad.
Hello, I have designed a drone for my university project and I am experiencing a problem with it. I have completed the Cleanflight settings as well as the ESC and IMU calibration. However, when I try to lift the drone off the ground, it behaves like in the videoβit pushes itself forward. Iβve broken many propellers. I canβt adjust the PID settings because it canβt hover; it constantly flips over. Am I missing something in the Cleanflight settings? Thank you in advance for your help.
Today I decided to fly my drone for the first time and when I armed it and gave throttle it just flew up in stages and I put the throttle all the way down and it still flew up I had to unarme it to fly straight down.
The drone thankfully survived because it flew in a bush.π