08-21-2025 Q&A: 3D Carving Bits, File Saving, and Fixing Open Vectors

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In this Q&A session, we explored best practices for selecting bits for 3D carving, proper ways to save Vectric project files, and techniques for fixing open vectors. The discussion also covered strategies for making double-sided bowls, organizing files, adjusting feed/speed settings, reducing chip-out on small letters, and handling duplicate vectors.

Key Tips Learned in this Q&A:

• 3D Carving Bits: An 1/8" tapered ball nose is the most versatile bit for detailed 3D carving. Drop down to 1/16" or 1/32" only for ultra-fine detail, but expect much longer carve times.

• Feeds and Speeds: Running too slowly dulls bits faster. Increase feed rates (200–300 IPM) and plunge rates to match for smoother 3D toolpaths and better chip load.

• File Saving in Vectric: Always save both your .CRV project file (to preserve vectors, layers, and toolpaths) and your toolpath G-code file. Use organized folder structures for easy retrieval.

• Fixing Open/Duplicate Vectors: Use Vectric’s join tool, layers, or selection tricks (Shift + drag box) to isolate and remove duplicates. Black dots indicate open vectors in version 12+.

• Reducing Chip-Out in Small Letters: Try down-cut V-bits (e.g., Jenny Bits) or seal wood before engraving. Hardwoods like maple or cherry perform better than pine for small detailed work.

Questions Answered in this Q&A:

• 00:03:37 – What bits are best for starting 3D carvings, and what wood should be used?

• 00:21:34 – How do I properly save a Vectric project vs. toolpaths?

• 00:26:41 – How do I make a two-sided bowl with rounded edges? (Two Rail Sweep & Molding Toolpath methods)

• 00:37:33 – Why can't I get the vectors of my cross design to connect after modifying the 'S' in versions B and C?

• 00:48:20 – Is there a bit to smooth the sides of letters?

• 00:55:07 – What’s the best bit for small epoxy-filled letters in a recessed game board?

Keywords:

3d carving, tapered ball nose bits, vectric saving files, toolpaths, open vectors, duplicate vectors, feeds and speeds, chip load, down cut v bits, epoxy inlays, bowls aspire, vectric q&a