8
Now thread the ribs R1B R, R2R and R3 onto the plug-in box. The plug-in box should be flush with the rib
R3. Then place the pressure bar R1-1 R (V / H) and R1-2 between the root rib R1B R and R2R.
This framework is now inserted with the ribbed feet in the corresponding recesses of the Depron template
and aligned. Pay attention here also to a right-angled position of the ribs. Lego bricks or small contra-angles
are suitable as aids here
It is also advisable to check the straightness of the root rib with a ruler as shown in the following
picture.