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True X quad frame

Name: True X quad frame dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What is a true X quadcopter frame? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: true x frame, true x quad, symmetrical x frame, x frame quadcopter, 5 inch true x, fpv true x, square quad layout, racing quad frame, true x vs squashed x

Exact dimensions. True size, with no printing tolerance added.

sizes: 3 in table

Notes

A true X puts four motors on equal arms 90 deg apart, in a square (UAVModel). Roll and pitch behave the same, so tuning is simplest, and one filter notch covers all arms.
It has the best yaw response, but the two front props show in the camera's upper corners (UAVModel; IntoFPV).
The file is a reference example built by Xem Studio from the numbers above (Reference 5-inch build: 220 mm diagonal within Grepow's 210-250 mm class for 5 in props.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

True X quad frame size chart

parameter	value or range	source
Arm spacing	90 deg	UAVModel; Oscar Liang
5 in prop frame size	210-250 mm diagonal (motor to motor)	Grepow
5 in arm thickness	5 mm standard; resonance ~180-220 Hz	UAVModel

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

UAVModel blog	FPV Frame Geometry: Deadcat vs True X vs Squashed X (2026 guide)	web	Publisher's page; dimensions are facts
IntoFPV forum	Frame layouts, configurations and their characteristics	web	Publisher's page; dimensions are facts
Oscar Liang	Types of multicopter	web	Publisher's page; dimensions are facts
Grepow	What size FPV drone should I get?	web	Publisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

true-x-frame-layout

true x frame layout: 220 mm motor-to-motor diagonal, 5 in props (discs show the swept area; arms and plate illustrative)

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Plain text: sheet.txt · JSON: /api/geometry?object=true-x-frame