Pictures paint a thousand words so to save a lot of reading.

I want to produce these little port blocks for a Mamod Loco on my CNC Taig.



Port block is 24.5mm wide and 32mm long. Machined from Brass. I have Vectric Cut3D and V Carve Pro.

I've exported the drawing as a dxf and can draw offsets for the various machining paths, but what software would generate those for me?