Mechanical Calculator

This fully mechanical calculator is designed to solve times tables in seconds. Entirely 3D-printed, it requires no glue, screws, or additional hardware for assembly, making it both innovative and accessible.

Assembly:

The calculator is designed for straightforward assembly, with all parts snapping or interlocking securely. No adhesives or special tools are needed, ensuring a seamless building experience.

For assembly I have provided a fully assembled model for reference to help you assemble your calculator

3D Printing:

The base model presents a unique challenge, particularly for users who struggle with bed adhesion. To ensure success, using a raft is highly recommended. The base is compatible with printers featuring a build plate of at least 180 x 180 mm.

Recommended Print Settings for All Parts:

• Supports: None
• Raft: Yes (recommended for the base)
• Print Speed:
  • Max 120 mm/s
  • First Layer: 20 mm/s
• Layer Height: 0.2 mm
• Infill: 15-20% (Grid or Gyroid recommended)
• Material: PLA
• Nozzle Temperature: 200-220°C (depending on filament)
• Bed Temperature: 50-60°C (if your printer supports it)
• Cooling Fan: Enabled (100% after the first few layers)
• Retraction Settings:
  • Retraction Distance: 4-6 mm (for Bowden extruders) or 1-2 mm (for direct-drive extruders)
  • Retraction Speed: 25-40 mm/s
• Color Change: At layer 3 (optional, for aesthetic details)

This project offers an exciting opportunity for makers to test their 3D printing skills while creating a functional and engaging tool. With attention to detail and the right settings, your calculator will be both precise and durable.