This guide explains how to build a simple glass bottle cutter using household materials. The device allows precise cutting of bottles into two halves by creating a uniform groove around the circumference.

Materials Needed

  • Salami cutting board (14x25cm wood base)
  • Electrical conduit with removable cover
  • Furniture wheels (4, max 4cm diameter)
  • Wood beams (25x4x2cm, 11x4x2cm, 25cm total of 1x2cm)
  • Screws, bolts, glue, rubber feet

Construction Steps

  1. Design: Measure bottles to determine support spacing (12-17cm). Create a jointed arm system for stability.
  2. Base Assembly: Attach wheels to the wood base. Drill holes for conduit and rail alignment.
  3. Arm Mechanism: Use long screws as joints. Reinforce with additional wood beams for stability.
  4. Cutting Blade Mount: Secure blade in a groove using a bolt. Adjust angle for better access.
  5. Rail System: Glue nylon strips inside rail edges for smooth movement. Add rubber feet for stability.
  6. Bottle Stop: Attach final wood beam to act as a stop and brace for the rail.
  7. Testing: Engrave a groove around the bottle, apply heat, and use cold water to split the bottle.
  8. Improvements: Upgrade to metal brace for better durability. Use column drill for precise hole alignment.

Tips: Use sandpaper to smooth edges after cutting. Ensure the blade follows the full circumference for clean splits.

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