11-26-2024 Q&A: Circular Patterns, Spindle Speeds, and Scaling 3D Projects

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In this Q&A session, we explored creating circular zigzag patterns, adjusting spindle speeds to reduce chip-out, and techniques for scaling double-sided 3D projects to fit thinner material. Discussions also covered ways to invert carving patterns for flags, effective chip carving methods, and sourcing affordable wood for CNC projects.

Key Tips Learned in this Q&A:

• Circular Zigzag Patterns: Use the circular copy tool and precise offsets to create evenly spaced circular patterns. For irregular shapes, utilize the copy along vectors tool with Mark Lasby’s shared guide.
• Scaling Double-Sided Projects: Use the model thickness scaling feature in VCarve or Aspire to fit 3D projects into thinner material while maintaining proportionality between sides.
• Spindle Speed and Chip-Out: Adjusting spindle speed and using appropriate bits (e.g., downcut for clean top edges, compression bits for dual-sided finishes) can significantly reduce chip-out in hardwoods.
• Inverting Carving Patterns: For 2D projects, add boundaries to invert carving areas; for 3D projects, toggle between “add” and “subtract” in the combine mode to achieve the desired look.
• Sourcing Affordable Wood: Explore local mill shops, Facebook Marketplace, or arborist-sourced slabs for discounted wood.

Questions Answered in this Q&A:

• 00:04:38 - How to create a circular zigzag pattern around a circle?
• 00:20:40 - Modeling laces on a football.
• 00:22:22 - Can 3D bowl models be scaled to fit thinner material in Aspire and VCarve?
• 00:37:24 - How to invert flag carving patterns for epoxy filling?
• 00:44:36 - Does spindle speed impact chip-out on hardwoods?

Keywords:

 circular copy tool, zigzag patterns, spindle speed, chip carving, double-sided projects, scaling 3d models, inverted flag carving, affordable cnc wood sources, aspire, vcarve