ZMR250 Quadcopter
Background
I got into the R/C hobby at a very young age, mainly with R/C cars. They weren’t that nice, since I was so young, but boy were they fun. I remember I got a truck one year for Christmas and immediately started driving (and crashing) it. Since we were having Christmas at my grandparents, they didn’t really like me hitting their walls with it, so they hid it from me for a while. Boy was I mad… I loved that thing!
After a few years of R/C cars, I lost interest. Sure they were fun, but I didn’t want to invest in a nitro-powered car and the electric ones I had were too slow. Thus, I moved onto newer and more exciting things - that is until May of 2015, when I placed my first order for R/C plane/drone parts from HobbyKing.com. Ever since then, I’ve been hooked.
Previous Experience
My first project was a cheap clone of the DJI 450 sized quadcopter.
3-D Printed Parts
While there is no absolute need for 3D printing parts for drones, sometimes it can be very helpful. For example, during a crash, dirt and mud can easily get into the motors. By 3D printing a motor shield and attaching it, debris can be kept out of the motor. This is just one example of a practically unlimited number of help parts one can print.
My ZMR250 build uses a number of 3D printed parts. Since this was my first foray into 3D printing and the ZMR250 frame is fairly popular, I opted to just use other people’s designs for my quadcopter. I’ve attached the files below that I printed as well provided links to the original files from Thingiverse.
- Part 1
- Part 2
- Part 3
- Part 4
Parts
| Part Description | Part | Quanity | Unit cost | Total Cost | Seller |
|---|---|---|---|---|---|
| Motors | Scorpion M-2204-2300KV Brushless Outrunner Motor Pair (CW & CCW) | 2 | $34.78 | $69.56 | HobbyKing |
| ESCs | DYS XM20A 20A (3-4s) mini ESC | 4 | $11.64 | $46.56 | HobbyKing |
| Receiver | FrSky D4R-II 4ch 2.4Ghz ACCST Receiver (w/telemetry) | 1 | $24.99 | $24.99 | GetFPV |
| FC | Naze32 FC Full | 1 | $20.79 | $20.79 | AliExpress |
| Frame | LHM149 Blackout QAV250 Carbon Fiber Mini 250 FPV Quadcopter Frame (Unassembled) | 1 | $17.79 | $17.79 | AliExpress |
| Battery | Turnigy nano-tech 1300mAh 3S 45~90C Lipo | 1 | $14.49 | $14.49 | HobbyKing |
| Power Dist. Board | Matek Mini Power Hub Power Distribution Board PDB with BEC 5V & 12V for FPV QAV250 ZMR250 Multicopter Quadcopter | 1 | $5.99 | $5.99 | AliExpress |
| Props | Gemfan Propeller 6045 | 2 | $1.67 | $3.34 | HobbyKing |
| Receiver antenna holder | Turnigy 2.4G Antenna Mount for Racing Drones (Grey) | 1 | $1.70 | $1.70 | HobbyKing |
| Battery holder | Turnigy Battery Strap 330mm | 1 | $1.69 | $1.69 | HobbyKing |
| FPV VTX | ImmersionRC 5.8Ghz Audio/Video Transmitter - FatShark compatible (600mw) | 1 | $59.95 | $59.95 | HobbyKing |
| FPV camera | New 700TVL 2.8mm Lens FPV Camera CCD For QAV250 Quadcopter RC Plane UAV Accessories 66*O | 1 | $7.93 | $7.93 | AliExpress |
| FPV antenna | 1 Pair/2PCS Aomway 5.8GHz FPV 4 Leaf Clover AV Transmission RHCP Antenna For Camera Drone dji phantom 3 | 1 | $15.99 | $15.99 | AliExpress |
| FPV OSD | MICRO MINIMOSD Minim OSD Mini OSD W/ KV TEAM MOD For APM PIXHAWK Naze32 | 1 | $9.49 | $9.49 | AliExpress |
| 19 | $300.26 | Total |
