Small Control Horn

by Axbri, published

Small Control Horn by Axbri Feb 20, 2017


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933Views 459Downloads Found in R/C Vehicles


A control horn for small electric RC airplanes. Cut a slot in the control surface and glue it in place. Works for both balsa wood and foam models. The images shows 100% scale, but of course the control horns can be scaled to fit different needs. I have also included the SketchUp file, feel free to modify.

I added two new versions with holes in the base to make the glue joint stronger.

Print Settings


Homebuilt core-XY printer






0.05 mm layer height, 0.4 mm nozzle.


does not matter.


Print in PLA. Make sure to set bottom/top layer to something more than 0.5 mm, this way, the control horns will be printed solid. Use 1-2 shell layers.

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Great for small foamies!

It would be usefull to have small holes in the base of the control horn to enable the glue to better block the device like on this one http://www.thingiverse.com/thing:2119412

rudder horn with 1mm, 2mm and 3mm holes
by Cube_3

Very good idea! I have made a new version according to your sugestion.