CNC file needed for Steel Chord

Job ID: 39773589

Budget: $10 – $30 USD

I need my .dxf files changed to 2 .stp files
Here are my requirements for the final product

1. Block size: 10″ × 2″ × 2"

2.
File 1: Convex top (arc of an 80-ft diameter circle across the 10″ length).

File 2: Concave top (same arc, inverted).

3. Export each as STEP (.stp).