Dear fellow-shapers,

im absolutely new to 3D-modeling and although quite experienced in different scientific approaches and complex program environments the inherent logic of 3D-modeling is strange…

I‘m trying to design a dovetail plate with a trapezoid cross-sectional area.

The main body is no problem, but I don’t get the recessed screw-slits to be perfectly aligned in the middle of the plate.

My problem, as I understand it, is that I want to align a sketch with a surface.

Unfortunately I‘m not sure what’s the right approach to get this plate designed.

Perhaps it‘s best to first work with a rectangular sketch, extrude it to a cuboid and get the trapezoid shape afterwards, but perhaps I‘m missing the point in aligning those slits?

Any help is greatly appreciated.

Cheers Chris