Library › Drone design › Drone frame layouts ·
Plus (+) quad configuration
What is a plus-configuration quadcopter? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Also called: plus quad, + configuration, plus frame, cross quad, quad plus, plus vs x quad, multiwii plus, + quadcopter
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 1 in table
Notes
- A plus quad has one motor at front, back and each side. Orientation is easier and it flies 'like an airplane', but props are more likely to appear in camera (Oscar Liang).
- 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.
Plus (+) quad configuration size chart
| parameter | value or range | source |
|---|---|---|
| Arms | 4, on + axes | Oscar Liang |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Oscar Liang | Types of multicopter | web | Publisher's page; dimensions are facts |
| r/multicopter wiki (mirror) | Anatomy of a Multicopter | 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
| plus-frame-layout | plus frame layout: 220 mm motor-to-motor diagonal, 5 in props (discs show the swept area; arms and plate illustrative) | STEP · STL |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=plus-frame

Fits with
Questions
Why rare now?
Props in camera view (Oscar Liang).





