What are some alternatives?
When comparing Onshape and Esprit, you can also consider the following products
FreeCAD - An open-source parametric 3D modeler
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
SketchUp - 3D for Everyone
SolidCAM - The ‘Best-in-Class’ CAM Solution for Efficient & Profitable CNC-Programming Inside Your CAD
Mastercam - Mastercam's Dynamic Milling is a game changer for us.
SolidWorks - Dassault Systèmes SolidWorks Corp. develops and markets 3D CAD design software, analysis software, and product data management software. SolidWorks is the leading supplier of 3D CAD product design engineering software.