Grasshopper Automation and G-Code Specialist

We are looking for a specialist in Computational Geometry, here is the technical brief for our upcoming project. 
 

1. Project Overview We are migrating our manufacturing workflow from a file-based system (STLs) to a secure "In-Memory Streaming" architecture for FDM/FFF 3D printers
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2. The Architecture

• Core Engine: Rhino 8 (Grasshopper definition already developed) running headless via Rhino.Inside.
   
• Slicing Strategy: We do NOT use external slicers (Cura/Slic3r). The geometry slicing, infill generation (Gyroid/Lattice), and G-code conversion happen entirely within a custom Grasshopper definition.
   
• The Application (.NET/WPF): Acts as a wrapper. It sends users parameters to GH, retrieves the generated G-code list (Strings), and streams it to the 3D printer via USB/Serial Port.
   

3. Your Role We need you to build the "Bridge" and the Automation logic:

• Optimize the Grasshopper definition for G-code generation (handling retractions, flow rate, and variable density).
• Develop the C# Wrapper (Rhino.Inside) that executes this definition without UI.
• Implement the hardware handshake (printer validation).
   

4. Terms & Payments

• Format: Milestone-based project.
• Settlement: We facilitate payments via USDT or Bank Transfer, depending on your preference and location constraints.