3d Printing

Arch 200c 2013 Fall

Course Arch 200c
Date 2013/11/19
Learning Objectives In this session we will prepare models for 3D Printing. We'll discuss analysis tools to ensure edges are manifold and not naked. We'll discuss ways to model efficiently and with precision.
  • Go over Plaster Group CNC test model
  • 3D Print Preparation
    • Rhino Model Preparation
    • Kisslicer Process
  • Questions and comments
Uses Tool(s)

This session will be led by Rudy Letsche.

Preparing to 3D Print

Models that can be 3d printed

  • < 45 degree angle
  • Larger side of model as base
  • C-shaped foundation good
  • O-shaped foundation good

Model size constraints (if your model is bigger, you break it into parts)

Keep model in the sweet spot (centered)

TYPE A Printer

Base Dimensions: 260mm x 230mm x 220mm (W, D, H)

BFB Printer

BFB: 270mm x 220mm x 200mm (W, D, H)

Preparing Rhino file

Watertight Models

  1. Analysis – Edges – Show Naked Edges
  2. Offset Surface (Solid) 3mm or 5mm
  3. Make base surface flat (trim / cap)

Export to STL

  1. Binary
  2. Tolerance (0.1mm = 0.00394 inches)
  3. Click Preview (how is the mesh being constructed?)

Kisslicer Type A / BFB Settings

General Settings

  • Speed: Fast (Rough) ---- Slow (Precise)
  • Conservative speed = 70


  • Skin Thickness = 1.0 (0.8 okay) – uses a “crowning algorithm”
  • Infill: Solid ---- Hollow
  • Extrusion width = 0.6
  • Seam-hiding / Jitter = 360 degrees (NO JITTER ON BFB PRINTER)
  • De-String = On

3dPrinting 02.png


  • Support Structure = on/off


  • White = 200 deg celcius
  • Clear = 185 deg celcius
  • Black / other = 185-190

3dPrinting 03.png


Record the cost of the print. Write a receipt. Pay at Rm 477.