Design: Martian II Frame 3D Printed Upgrade Kit

by Oscar

I designed some 3D printed parts for the Martian II mini quad frame. They are not going to make you fly faster, but definitely will make building and repairing more enjoyable!

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STL download:

These parts are not exclusive to the Martian frame, the buzzer/capacitor mounts works in any frames with standoffs. and the SMA and XT60 mounts might work as long as the design fits.

3D parts are printed in black TPU as shown in this photo.

Capacitor Mount

There are two versions, horizontal and vertical. Both require a small zip tie to hold the cap in place. It should fit most electrolytic capacitor used in Mini quad for noise filtering (i.e. 470uF, 1000uF and 2200uF).

Buzzer Mount

It holds standard sized buzzer next to a standoff (buzzer diameter of 11.8mm to 12.0mm)

SMA Pigtail Mount

It has a 30-degree tilt angle for more optimal FPV signal during forward flights.

XT60 Pigtail Mount

The XT60 mount keeps the battery wires away from spinning props.

With the battery pads located at the rear, I’ve found 7cm to 9cm a good length for the XT60 pigtail wires. And 14AWG and 16AWG are easier to work with because they are more flexible.

I’ve been testing and improving these parts for a while, works pretty well and really makes building and repairing easier :)

I was updating my tutorial “How to build a racing drone“, and I was rebuilding my Martian. I had such a great experience from using these 3D printed partsI just have to share it with everyone.

Why do I like the Martian frame so much?

The frame in these images, is the first Martian frame I bought back in 2016! It’s the oldest frame in my fleet and still going strong after all these years. Best $20 I have ever spent. Since then I went back and bought 4 more and I haven’t broken a single one, not even an arm. But I did bend a lot of metal standoffs which are cheap to replace :)

I have a coupon here, FiberRC, you can get it here for only $16.8 :)

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Gabino Berrones 15th December 2020 - 2:41 am

where can i buy this kit? tried following links but can’t find where to buy!

Oscar 11th January 2021 - 2:52 pm

It’s no longer available for sale, you need a 3D printer to print these yourself.

Asim 28th July 2020 - 3:47 am


How can I purchase a pre made print? I need the Sma connector and receiver antenna tube for the rear of the Martian

Enrico 4th May 2020 - 12:44 am

I don’t know if you receive notifications of thingiverse comments if so, sorry for spam… can you make a remix of the 5mm SMA, with 28mm of distance (between the center of standoffs)? It’s for stingy and reverb, this has the best design by far… cheers!

pieter 5th April 2019 - 5:53 pm

Great, was just looking into upgrading my Martian. I like this frame, my first ’99 dollar” build

June 4th April 2019 - 9:14 am

These are awesome, man! I am enjoying 3d printing nowdays, and I appreciate your 3d printing articles. I am waiting desperatly for you to load these on thingiverse, especially your sma connector one.
Thanks, June

mrrGrrGrr 4th April 2019 - 1:01 am

can we get the STLs?

Oscar 8th April 2019 - 5:32 pm

Sure, i will release it in the next few days.