This is my next upgrade to my first quad. Because there were so many changes I decided to create a new profile build. This uses many of the same parts from my build at https://rotorbuilds.com/build/26187, but upgrades includes the T-Motor 722 Pro FC to take advantage of the DJI port, ExpressLRS and new Beaver Frame. In order to take advantage of the sbus, from this FC, I reversed the TX and RX ports for URART 5 in Betaflight CLI console. I also created a new wiring harness for the VTX, listed below, to connect to the DJI port. Everything else worked as expected. I created custom TPU part for the quad, and they are listed below. I'm deciding if a bumper is needed. I'll decide after it's maden flight. :-)
resource SERIAL_TX 5 D02
resource SERIAL_RX 5 C12
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Hi, nice & clean build 👍
How did you attach the standoffs in the middle of the base plate? You had to remove the press nuts, right? Then the holes are bigger than the screw though, did you use some kind of washers to fill the gap?
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Great looking build, I'm wanting to switch from the Apex frame to this. How did you mount the HDZero vtx, I see a 3d print under it. Is that a 20x20 to 30x30 print? I didn't think this had a 30x30 hole pattern in the front.
It's a 30x30 mount, printed in PETG, I designed to separate the motor wire cables from the VTX. The link is in the parts list. You can actually have 2 30x30 stacks in this frame. It's a pretty versatile frame.
Ah thanks didn't noticed the 3d print links. Why PETG instead of TPU out of curiosity? For the print do you have screws coming up through the frame or its ziptied down? I thought this only had a 30x30 in the middle and rear, but maybe the Armattan pictures are deceptive. Thanks for the reply!
Oh any any issues with having the FC in the back like that?
No issues with having the FC in the back. I do the same with my gecko builds too.
I have screws on the rear of the mount and I zip tied the front. I used PETG because it handles heat better as well as sun light. I have TPU grommets in between the VTX and mount. And the bottom of the mount is indented so you can put the screw through the bottom and the nut on top.
Ah ok, so you're using the center 30x30 holes just for one side of the vtx. Thanks for the info. Difficult to find a frame to fit this with any room to spare, my Apex build is so tight with that VTX.
Yeah, this frame has an amazing amount of room. Plenty of airflow.
Was there not enough room to put the FC in center and VTX in the back? Guess I'd be concerned about signal degrading with that ufl to sma and the length of the cable. Maybe not a problem.
No, there's no room if the FC is in the center. Maybe if you use a 20x20 stack you can get it to fit, or use the Race V2. I put it up front so I could use a shorter MIPI Cable.
Figured so. No issues with that ufl to sma cable? I've read that these can degrade the signal with digital, but not sure how much.
No, no issues so far with the sma cable.