nx_paste_gcode.nx

nx_paste_gcode.nx -- LIB: the PASTE/CONSTRUCTION (concrete) G-code emitter -- 3D-printing workstream R2, growing the material ladder from filament into CONCRETE. Generates printable G-code for a hollow cistern wall (the R-ECO rainwater structure): footprint w x d, height h, printed perimeter-by-perimeter, layer by layer. Construction printing differs from FDM: BIG nozzle + thick layers (read from print:mat:concrete), COLD paste (NO hotend M104/M109), continuous pump extrusion (E grows with path length). CARDINAL 26 (never-brick): the vocabulary is movement + extrusion only (G21/G90/G28/G92/G0/G1/M84) -- it CANNOT flash firmware or write EEPROM; output is a .gcode text file. Provenance rides a firmware-ignored comment header. Q14-free integer math throughout (mm units). license_tier: ORIGINAL