While CorelDRAW has many paid options, these specific resources are known for offering free or budget-friendly macros and tools for 3D box and carton generation: GDG Macros
: This is a popular community-shared "Mega Pack" that includes over 25 tools, often featuring a 3D box or carton generator compatible with older versions like X4 through 2018. Engraving Concepts : Provides a CorelDRAW Macro Library coreldraw 3d box macro free download
where various functional macros are available for use without a license. Sancho’s Macros (CdrToolsEx) While CorelDRAW has many paid options, these specific
: A collection of simple macros for daily work, some of which are free or offer trial modes for newer versions like X7. Engraving Concepts Automatic Carton Maker Macros While CorelDRAW has many paid options