My First Build
FPV caught my eye in November of 2017 and while I've had a few quads this is my first build.
Frame: Catalyst Machine Works - Merica 3"
Already having a 2.5" Torrent 110 and a 5" RMR Stretch Reaper I decided I wanted to build something to complement my developing quiver. I have yet to race but am planning to do so down the road so I wanted something that would hold its own at the track. I also wanted something durable with replaceable, affordable, arms as I'm rather new and crashing usually means damage. The Catalyst Machine Works Merica 3" seemed to have what I wanted along with a solid reputation for great products. Sold!
ESC/FC/Motors/Props
The time I spent reading reviews and watching flights for frames paled in comparison to what time I dedicated to shopping for the right ESC, FC, motors and props. While it's very exciting to be involved with such a new and growing hobby the downside is that there's a lot out there and not enough time has passed to weed out the mediocre from the exceptional. As a result every pilot has their own experience and own opinions with lots and lots of different products. Beyond discussions of actual product quality and fitment I regularly encountered political slants towards software developers and companies as a whole. Eventually I just picked someone I hoped I could trust and let them guide me. I'm sure many options would have sufficed and possibly for a lot cheaper when considering my novice level and general inability to note any real differences. This setup sure seems to rip so I'm happy.
Camera/VTX
While I was considering the RunCam Micro Eagle I ended up going with the more affordable RunCam Micro Swift 2. There is a huge following for the Micro Swift 2 and it seems that I really couldn't go wrong with that choice while saving a couple bucks. For the VTX I found a lot of positive reviews on the Eachine VTX03 and for the price it seemed like a great choice. One thing I did want was audio fed to my earbuds but only realized too late that while ordering the ATX03 (VTX03 plus audio) was the right move I needed to have a camera with mic or a separate mic altogether to get that perk. Oh well - not replacing my camera and not looking to add a mic.
RX
My original drone, the Torrent 110 bnf, was purchased with a Spektrum DX6E. A few months in and I wish I had a Taranis but I'm not about to change just yet. Eventually when I get into long range, which I hope to sooner than later, I'll get something that can easily hook up with TBS Crossfire. So I'm dealing with Spektrum for now. They have a rx with telemetry and one without. I went with the cheaper as the FC will feed data to my OSD and I don't really need the telemetry.
Other
Got some great LEDs from TinyTys that wire directly to the battery pads which is very straight forward.
Weighs in at 177g w/out battery, 266g auw.
Merica Lessons Learned
General Lessons Learned
Casualties
Hey! I'm building this exact quad right now! Your example came out very nice. I definitely recommend picking up a 4S battery for this beast!
I run the Lumenier 850mah high voltage 4S on mine. Though I admit it's a little heavy for a 3 inch. I've been tempted to try the Tattu 650mah 4S. You need really good batteries for demanding props on high performance 1407 motors.
Oh, and just looking at your build a little closer, I can't tell if your XT30 is strain relieved. I really recommend zip tying it to an arm.
I'd also recommend adding a capacitor to your build. A 470uf would be fine.
My Merica 3" isn't posted yet but I'll take some pics this weekend and get it up here.
All the best!
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Great job on the article and the initial build! You nailed it, man.