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H125 Micro Quad V1 -7mm/8.5mm Micro SciSky Based (under $50)

Creation's quality: 5.0/5 (2 votes)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Looking for an affordable trainer quad that you’ll still enjoy flying after you've mastered your moves? This H125 micro quad might be the right choice. Measuring just under 100mm long, about 75mm wide, and 125mm diagonally, this is the perfect medium-sized micro quad for just about every skill level and every age. Weighing in at just 45 grams fully-stuffed, including the battery! We've based this micro around the 7mm brushed motor because we've found that they’re inexpensive yet get the job done. Instead of using screws and aluminum spacers, the quad is designed around a peg system that saves a significant amount of weight and makes construction and repairs a snap. Using a Turnigy nanotech 260mah lipo, you will get about 4 1/2 minutes of flight time. If you want to see this quad fly check out our micro quad flight video. If you have any suggestions on how we can modify our design to make it better just leave a comment. If you are looking to make and easy remix, our designs are also publicly available on Onshape. Please refer to links included at the bottom of the page for specific links to our designs. If you like this project, make sure to check out our other cool science projects on our youtube page!

Want to easily customize and change this design, check out Onshape design to make a copy!

UPDATE (12/25/15): New squishy Ninjaflex feet to absorb the shock from rough landings!

UPDATE (1/11/17): New 8.5mm BETA frame released. Now includes top and bottom plates. Ninjaflex feet soon to come.

3D printing settings


FlashForge Creator Pro






Use your default settings

Top Plate: Print in PLA or ABS with no rafts or supports. Print with 4 shells and 15-20% infill. You may have to flip the design in your slicing program because of the LOSI slot.

Bottom Plate: Print in PLA or ABS WITHOUT rafts, but WITH supports. Print with 4 shells and 15-20% infill.

Spacer Pegs: Print in PLA or ABS with rafts and supports. Print with 3 shells and 100% infill. We suggest printing at least 4 at a time so that each peg has time to cool before another layer is added, ensuring that your pegs don't deform.

UPDATE (12/25/16): New design with squishy rubber Ninjaflex feet. These feet help absorb and disipate the impact when you have a rough landing. This requires a dual extruder printer capable of printing Ninjaflex. Use the same settings for all of the PLA/ABS parts, but print the Ninjaflex at 10-15% infil with two shells. There are four .STL files of the rubber feet. When dragged into your sclicer, make sure to reset their positions so that they align with the plastic base!

Assemble Your Micro Quad!

We've created a super in-depth tutorial video on how to assemble your micro quad. We've even created an entire step by step tutorial slide deck that’s laid out for teaching an intro class about drones. Our tutorial includes detailed photos of the quad through all steps of assembly, clear instructions on how to perform each step, and a complete CleanFlight configuration tool walkthrough. Our step-by-step student slide deck can be downloaded along with the .STL files on this page. Stay tuned for detailed repair videos, slide decks, and flight videos.

Micro Scisky soldering tutorial
Micro Scisky firmware flashing tutorial
CleanFlight walkthrough

Parts/Tools List
The list of parts to assemble your quadcopter are listed below (all prices include shipping):

Don't have a 3D printer? Check out our H125 frame kit

Micro SciSky flight controller -$20

Echine DSF3 evo F3 flight controller

Propellers (24 pack) -$5

Micro JST 1.25 (set of 40) -$5

LOSI Connectors (set of 20) -$7

7mm Brushed Motors (set of 12) -$13

High performance Spintech Sidewinder 7mm brushed motors (set of 6) -$22

Turnigy nanotech 260mah lipo (70c burst)

Spektrum DX5e 5ch transmitter (used mint condition) -$60

Spektrum DX6i 6ch transmitter (new) -$130

Spektrum DXe 6ch transmitter

FlySky FS i6 6ch transmitter

FrSky Taranis Q X7 transmitter

FrSky Taranis X9D Plus transmitter

Heat Shrink Tubing (530 piece set) -$10

Silver Rosin Core Solder (1/2 pound) - $25

Small Zip-Ties (1,000 pieces) -$5

The list of essential tools to assemble your quadcopter are listed below:

Safety Glasses -$5

Longnose Pliers -$11

Soldering Iron Kit -$21

Helping Hand -$8

Heat Gun -$18

EPIC 100w Glue Gun (uses 11mm glue sticks) -$17

Sharpies (red and black): -$2
Get at any office supply store.

3D printer file information

  • 3D design format: STL and ZIP Folder details Close
    • 8.5mm_Bottom_Plate.stl
    • 8.5mm_Top_Plate.stl
    • Arm_1_Ninjaflex_Foot.stl
    • Arm_2_Ninjaflex_Foot.stl
    • Arm_3_Ninjaflex_Foot.stl
    • Arm_4_NinjaFlex_Foot.stl
    • Bottom_Plate.stl
    • Bottom_Plate_PLA_-_NinjaFlex_Feet.stl
    • Spacer_Peg.stl
    • Top_Plate.stl

    Learn more about the formats

  • Publication date: 2018/03/02 at 12:18





We're a team of young makers who like cool (and sometimes dangerous) weekend projects. Make sure to check out our youtube channel!

YouTube Channel

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