Customizable Curved Beams for LEGO Technic

by stevemedwin, published

Customizable Curved Beams for LEGO Technic by stevemedwin Jan 14, 2015


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Here are different curved beams that work with LEGO Technic. Print a bunch of these, connect them with small LEGO pins and see what kind of designs you can create! For the photos, I used twelve 9 hole parts. Using the same beams I also created stop motion animations that can be viewed here: https://vimeo.com/118086832 and https://vimeo.com/119009532

I've included several designs that you can easily print. In the file name, the first number is the number of holes and the second is the angle between adjacent holes. This angle determines the radius of the beam.

You can also use the Customizer to make your own beams. Just enter the number of holes and the degrees between holes. The number of degrees sets the radius of the beam. Experiment with these settings to get a sense of the design possibilities. You can even make a complete circle.

Or you can download the OpenSCAD file and tweak all of the parameters directly. Because of the way I wrote the programmed, the generation of the 3D solid part may take a few minutes.


Designed in OpenSCAD, sliced in Simplify3D, printed on a MakerBot Replicator2 with Elmer's Craft Bond glue stick on a glass build plate with PushPlastic filament and the following settings:

Infill = 20%
Layer height = 0.2
No. shells = 4
Feedrate = 40
Travel Feed = 55
Temperature = 220C

No support is needed.

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