Making a Triangle Shape

I have made a cube with bamboo skewers.  Why not try a triangle?
In blender I created a first corner element.   It is based on a cube.
This is the item after  1:42 hours printing and 89% is done.

After 1:49 hours the element was ready. The print went well.

Something with the angle is not right. It is less then 60 degreeds.  I have to redesign the element.