top of page

HM3D 74X-i2A Build Discussion

Public·18 members

June 27, 2025 · joined the group.
120 Views

Uhhh I hate these delicate works….. so much can go wrong 😀



183 Views

Just for info about which light is where…

right Nav light is green, left is red



123 Views

Speedy Bee 4 in 1 ESC Instructions

Here is a link to the instructions I wrote in RC Groups about using the Speedy Bee 4 in 1 ESC for the 74X-i2a.


So this leads to the next discussion about the ESC's, I thought Broc's idea of using a Drone ESC is brilliant. He opted to use one drone ESC 4-in-1 combo versus using an individual ESC for each motor. I will explain later how we soldered the ESC to make it a PWM esc and not us a flight controller. At first when Broc told me he was using a drone ESC I was a little confused, but it all makes sense. There are several advantages using a drone 4-in-1 ESC versus an ESC for each motor. One - there is not much real-estate inside the wing to mount an ESC for each motor and the airfoil is thin. Two - The ESC is centrally located and…


121 Views

HM3D, LLC

3D printed RC airliners & heavy jets 

  • Facebook
  • YouTube
  • Instagram
© 2026 HM3D, LLC. All rights reserved.
bottom of page