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Front Left Corner Post

v2 Gemini approved

Create a timber corner post, 122x122x2310mm, C24 structural timber. Must include a continuous routed spline groove on its right and back faces for connecting to adjacent SIP panels. Base sits flat on the sole plate.

Dependencies

front_left_sole_plate.top_face

Interfaces Provided

right_spline (spline) back_spline (spline)
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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 front_left_sole_plate.top_face: %{name: "top_face", type: "face", value: %{}, agent_id: "front_left_sole_plate"}
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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 (1773 tokens)
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front_left_corner_post_v1.py · 144 lines 
import FreeCAD
import Part
import math
import os
from FreeCAD import Vector

# === PARAMETRIC CONSTANTS ===
LENGTH = 122.0          # Post dimension X
WIDTH = 122.0           # Post dimension Y
HEIGHT = 2310.0         # Post dimension Z
GROOVE_W = 45.0         # Width of the spline groove
GROOVE_DEPTH = 45.0     # Depth of the spline groove
PART_CODE = "H-1"
PRINT_SCALE = 50
# === END PARAMETRIC CONSTANTS ===

# === DOCUMENT SETUP ===
doc = FreeCAD.ActiveDocument or FreeCAD.newDocument("Model")

# === GEOMETRY CONSTRUCTION ===
# 1. Base Post
base_post = Part.makeBox(LENGTH, WIDTH, HEIGHT)

# 2. Right Face Groove (Cut into +X face, centered in Y)
rg_y0 = (WIDTH - GROOVE_W) / 2.0
right_groove = Part.makeBox(
    GROOVE_DEPTH, 
    GROOVE_W, 
    HEIGHT, 
    Vector(LENGTH - GROOVE_DEPTH, rg_y0, 0)
)

# 3. Back Face Groove (Cut into +Y face, centered in X)
bg_x0 = (LENGTH - GROOVE_W) / 2.0
back_groove = Part.makeBox(
    GROOVE_W, 
    GROOVE_DEPTH, 
    HEIGHT, 
    Vector(bg_x0, WIDTH - GROOVE_DEPTH, 0)
)

# 4. Apply Cuts
result = base_post.cut(right_groove)
result = result.cut(back_groove)

# === PART CODE ===
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

result = _emboss_part_code(result, PART_CODE)

# === FINAL OUTPUT ===
obj = doc.addObject("Part::Feature", "CornerPost")
obj.Shape = result
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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Upstream interface changed: front_left_sole_plate.top_face
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Regeneration requested by user
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Generating v2
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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 (1775 tokens)
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front_left_corner_post_v2.py · 143 lines 
import FreeCAD
import Part
import math
import os
from FreeCAD import Vector

# === PARAMETERS ===
POST_W = 122
POST_D = 122
POST_H = 2310

# Spline dimensions (matching a standard SIP-122 panel with a 100mm core)
GROOVE_W = 100       # Width of the spline core
GROOVE_DEPTH = 45    # Depth of spline block insertion

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

# === BUILD GEOMETRY ===
# Base solid timber post
post = Part.makeBox(POST_W, POST_D, POST_H)

# Right face groove (on +X face, cut inward)
right_groove = Part.makeBox(
    GROOVE_DEPTH, 
    GROOVE_W, 
    POST_H,
    Vector(POST_W - GROOVE_DEPTH, (POST_D - GROOVE_W) / 2, 0)
)

# Back face groove (on +Y face, cut inward)
back_groove = Part.makeBox(
    GROOVE_W, 
    GROOVE_DEPTH, 
    POST_H,
    Vector((POST_W - GROOVE_W) / 2, POST_D - GROOVE_DEPTH, 0)
)

# Apply boolean cuts to create the continuous routed grooves
result = post.cut(right_groove).cut(back_groove)

# === PART CODE ===
PART_CODE = "H-1"
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."""
    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

result = _emboss_part_code(result, PART_CODE)

# === ADD TO DOCUMENT ===
feature = doc.addObject("Part::Feature", "CornerPost")
feature.Shape = result

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 (v2)
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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
◉
Provider updated to google / balanced
◉
Provider updated to google / balanced
v0.0.985