If you mainly do 2.5D carving and occasional 3D, VCarve Pro ($699) + a separate 3D modeling tool (like Blender, free) can replicate much of Aspire’s workflow.
Making it easier to create internal and external threads. vectric aspire 105 license code
If you have already purchased the software but lost your code, do not worry. You do not need to buy it again. If you mainly do 2