I need a basic 3D rendering of a spiral staircase to create templates from. I have to have the staircase layered every 21mm from floor to top. I need the "layer view" to cut templates from plastic so I can use it as templates to make exact wood layers that I will glue and stack again to build the staircase. Requirements: - Basic structure only, no detailed features. - Templates of layers every 21mm from top to bottom - Final deliverables in 2D file to laser cut from ABS, PVC or plastic etc. Ideal Skills and Experience: - Proficiency in 3D modeling software. - Experience with staircase designs, especially spiral. - Ability to produce accurate and clean model files.