← shed

Rear North Wall

v1 Claude approved

Create the rear facade SIP wall, 2000mm length x 122mm width x 1756mm height. The bottom edge and top edge foam core must be recessed by 45mm deep x 100mm wide to form a rebate_spline connection for timber plates.

Dependencies

foundation.floor_surface

Interfaces Provided

inner_face (face) top_edge (edge)
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Agent initialized (status: waiting_for_dependencies, action: check_dependencies)
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Provider: google | Profile: balanced
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Received interface foundation.floor_surface: %{name: "floor_surface", type: "surface", value: %{}, agent_id: "foundation"}
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All dependencies resolved, starting generation
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Generating v1
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Calling Gemini API for code generation (gemini-3.1-pro-preview)...
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Generation token budget: max_tokens=12288, thinking_budget=0 (retry_count=0)
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Received response (2058 tokens)
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north_wall_v1.py · 163 lines 
import FreeCAD
import Part
import math
import os
from FreeCAD import Vector, Placement, Rotation

# === ANCHOR POINTS ===
# === END ANCHOR POINTS ===

# === PARAMETERS ===
LENGTH = 2000          # mm
WIDTH = 122            # mm
HEIGHT = 1756          # mm
FACE_THICKNESS = 11    # mm
CORE_THICKNESS = 100   # mm
RECESS_DEPTH = 45      # mm (top and bottom recess for plates)
SPLINE_W = 45          # mm
SPLINE_D = 100         # mm

# === PART CODE ===
PART_CODE = "C-2"
PRINT_SCALE = 50  # 1:50 model scale — adjust if printing at a different scale

def _emboss_part_code(shape, code, print_scale=PRINT_SCALE):
    """Cut part code into largest face. Returns shape unmodified on any failure."""
    import os, math
    depth_raw = 0.6 * print_scale
    try:
        # --- font ---
        rd = FreeCAD.getResourceDir()
        font = None
        for fn in ("osifont-lgpl3fe.ttf", "FreeSans.ttf", "FreeCAD.ttf"):
            fp = os.path.join(rd, "Mod", "TechDraw", "Resources", "fonts", fn)
            if os.path.exists(fp):
                font = fp; break
        if font is None:
            return shape

        # --- cap depth at 33% of thinnest component dimension ---
        all_dims = sorted([shape.BoundBox.XLength, shape.BoundBox.YLength, shape.BoundBox.ZLength])
        depth = min(depth_raw, all_dims[0] * 0.33)

        # --- find largest face ---
        best = max(shape.Faces, key=lambda f: f.Area)
        n = best.normalAt(0, 0)
        c = best.CenterOfMass

        # --- text height: 2 mm at print scale, capped at 80% of longest face edge ---
        fb = best.BoundBox
        fb_dims = sorted([d for d in (fb.XLength, fb.YLength, fb.ZLength) if d > 1.0])
        text_h = min(2.0 * print_scale, (fb_dims[-1] * 0.80) if fb_dims else 2.0 * print_scale)

        # --- orthonormal face frame: right (r), up (u), out (n) ---
        wz = Vector(0, 0, 1)
        wy = Vector(0, 1, 0)
        up_ref = wy if abs(n.dot(wz)) > 0.9 else wz
        r = up_ref.cross(n).normalize()
        u = n.cross(r).normalize()

        # --- build text faces from wires (handles letters with holes) ---
        ss = Part.makeShapeString(String=code, FontFile=font, Size=text_h, Tracking=0)
        wires = sorted(ss.Wires, key=lambda w: w.BoundBox.DiagonalLength, reverse=True)
        faces_out = []
        used = set()
        for i, ow in enumerate(wires):
            if i in used:
                continue
            ob = ow.BoundBox
            holes = []
            for j, iw in enumerate(wires):
                if j <= i or j in used:
                    continue
                ib = iw.BoundBox
                if ob.XMin < ib.XMin and ob.XMax > ib.XMax and ob.YMin < ib.YMin and ob.YMax > ib.YMax:
                    holes.append(iw)
                    used.add(j)
            used.add(i)
            try:
                faces_out.append(Part.Face([ow] + holes) if holes else Part.Face(ow))
            except Exception:
                try:
                    faces_out.append(Part.Face(ow))
                except Exception:
                    pass
        if not faces_out:
            return shape
        tf = Part.Compound(faces_out) if len(faces_out) > 1 else faces_out[0]

        # --- combined matrix: center text → rotate onto face → translate to face center ---
        tb = tf.BoundBox
        mc = FreeCAD.Matrix()          # center text at local origin
        mc.A14 = -tb.XLength / 2
        mc.A24 = -tb.YLength / 2
        mr = FreeCAD.Matrix()          # rotate: X→r, Y→u, Z→n
        mr.A11 = r.x;  mr.A12 = u.x;  mr.A13 = n.x
        mr.A21 = r.y;  mr.A22 = u.y;  mr.A23 = n.y
        mr.A31 = r.z;  mr.A32 = u.z;  mr.A33 = n.z
        mt = FreeCAD.Matrix()          # translate to face center, offset 5% outward
        mt.A14 = c.x + n.x * depth * 0.05
        mt.A24 = c.y + n.y * depth * 0.05
        mt.A34 = c.z + n.z * depth * 0.05
        tf2 = tf.transformGeometry(mt.multiply(mr.multiply(mc)))

        # --- extrude inward and cut ---
        extrude_vec = Vector(-n.x * depth * 1.1, -n.y * depth * 1.1, -n.z * depth * 1.1)
        text_solid = tf2.extrude(extrude_vec)
        return shape.cut(text_solid)

    except Exception as e:
        print(f"[part_code] emboss skipped: {e}")
        return shape

# === GEOMETRY CONSTRUCTION ===
doc = FreeCAD.ActiveDocument or FreeCAD.newDocument("Model")

shapes = []
panel_widths = [1200, LENGTH - 1200]  # Standard 1200mm panel + 800mm remainder
current_x = 0

for i, pw in enumerate(panel_widths):
    # Front OSB face (full height)
    face1 = Part.makeBox(pw, FACE_THICKNESS, HEIGHT, Vector(current_x, 0, 0))
    
    # Back OSB face (full height)
    face2 = Part.makeBox(pw, FACE_THICKNESS, HEIGHT, Vector(current_x, FACE_THICKNESS + CORE_THICKNESS, 0))
    
    # Foam core (recessed at top and bottom by RECESS_DEPTH)
    core_height = HEIGHT - 2 * RECESS_DEPTH
    core = Part.makeBox(pw, CORE_THICKNESS, core_height, Vector(current_x, FACE_THICKNESS, RECESS_DEPTH))
    
    shapes.extend([face1, face2, core])
    
    current_x += pw
    
    # Block spline between this panel and the next
    if i < len(panel_widths) - 1:
        spline = Part.makeBox(
            SPLINE_W, 
            SPLINE_D, 
            core_height, 
            Vector(current_x - SPLINE_W / 2, FACE_THICKNESS, RECESS_DEPTH)
        )
        shapes.append(spline)

# Fuse all components into one contiguous solid
final_shape = shapes[0]
for s in shapes[1:]:
    final_shape = final_shape.fuse(s)

# Clean up internal geometry lines created during fusion
final_shape = final_shape.removeSplitter()

# Apply Part Code embossing
final_shape = _emboss_part_code(final_shape, PART_CODE)

# Export the solid to the document
obj = doc.addObject("Part::Feature", "Body")
obj.Shape = final_shape

doc.recompute()

if FreeCAD.GuiUp:
    FreeCAD.Gui.ActiveDocument.ActiveView.fitAll()
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Executing in FreeCAD...
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StepAnalyzer failed: FreeCAD could not read STEP file: FreeCAD exception thrown (File to load not existing or not readable) — skipping
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FreeCAD execution succeeded
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Exported: model.stl
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Generation succeeded and component was auto-approved (v1)
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to google / balanced
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Provider updated to anthropic / balanced
v0.0.985