I wish to draw in openscad a motor mount for rc car.

Most of what I need I can do but cannot find a way to draw 3 of 1mm circles each exactly 8.5mm from center of 12 mm radius circle and exactly 120degrees apart.

Hi,

I do not know OpenSCAD as I use FreeCAD.

The solution is easy. Draw 1 circle and then use the function â€śPolarPatternâ€ť if that exists in OpenSCAD.

PolarPattern asks you how many circles you want in a certain amount of degrees, eg. in your case that would be 3 circles in 360Â°.

regards Rainer

Did you find a solution for this? I can help with this if you are still in need.

Thank you for the offer and yes I would like a solution in openscad.

Iâ€™m not sure what you mean by circles exactly, but Iâ€™m guessing you mean holes, so you might want something like this:

```
$fn = 30;
eps = 0.001;
height = 2;
difference() {
cylinder(h = height, r = 12.0, center = true);
translate([8.5, 0, 0])
cylinder(h = height + eps, d = 1.0, center = true);
rotate([0, 0, 120])
translate([8.5, 0, 0])
cylinder(h = height + eps, d = 1.0, center = true);
rotate([0, 0, 240])
translate([8.5, 0, 0])
cylinder(h = height + eps, d = 1.0, center = true);
}
```

I should mention that this code could be made cleaner, refactored, etc., but I wanted to make the simplest code possible here so that itâ€™s easier to read.

Thank you. That does exactly what I wanted.