03-03-2026 Q&A: 3D Slot Strategies, Stacked Text Fixes, and AI Model Editing

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This Q&A session focused on troubleshooting common CNC machining issues, including resolving "fuzz" in V-carvings and perfecting vertical walls in 3D slots.  The session explored technical fixes for stacked text toolpaths in VCarve Pro and methods for editing 3D models using AI and level clipping.  Participants also received updates on an upcoming AI course and production techniques like nesting and array copying. 

Key Tips Learned in this Q&A:

• Improving 3D Slot Quality: When carving vertical surfaces like poker chip slots, switching from an offset strategy to a 90-degree raster provides a cleaner edge by ensuring the tool consistently touches the side walls.

•  Stacked Text Vector Boundaries: To avoid rough text or missed areas in stacked text projects, ensure the machining limit boundary is set to only the outer boundary vector rather than selecting all individual letters. 

•  Eliminating Carving "Fuzz": Shredded wood fibers in end grain are often caused by dull bits or incorrect stepover; using a tapered ball nose bit or adjusting the clearance pass can provide a cleaner finish than a standard V-bit.

•  3D Model Editing in VCarve: While VCarve lacks the sculpting tools found in Aspire, users can remove unwanted elements from 3D models by using level clipping with a closed vector or by merging clip art over the unwanted area.

•  Flattening Large Slabs: Using a CNC to flatten warped slabs allows for more control than a jointer; by shimming corners to prevent rocking, you can establish a perfectly parallel surface on both sides of the material. 

Questions Answered in this Q&A:

• 00:06:15 - Pete: How do I prevent "fuzz" and shredded fibers at the base of a final V-carve cut?  

•  00:10:18 - Paul: Is there a way to use a CNC to do the sanding of a wood slab safely?  

• 00:11:05 - Alden: Why am I getting rounded shoulders on my 3D poker chip slots instead of clean edges? 

• 00:25:27 - Jim: Can I change the wording on the "Open Book" clip art and still follow the page contours?

•  00:28:03 - Greg: Why is my stacked text coming out rough and missing sections in the toolpath preview? 

• 00:40:54 - Greg: Is the "Easy Create" AI tool capable of generating parametric stacked text signs?

•  00:43:43 - Dan: Is there a specific lesson on flattening a spoil board for a new machine?

•  00:47:29 - Ron: How can I remove a person from a 3D model generated by AI if I only have VCarve Pro?

•  00:57:45 - Thad: How do I make a drawing and cut it out multiple times for mass production?

•  01:00:24 - Thad: Why does the AI generate misspelled or foreign language text in my 3D models?

• 01:02:09 - Wayne: How do I get clean, square corners in a shaker-style door pocket using a round bit? 

• 01:12:38 - Robert: What is the best prompt for generating a CNC-ready Golden Retriever image in ChatGPT?

•  01:16:13 - Keith: How deep should I carve for an epoxy pour, and how do I get a bright white result on walnut?

•  01:19:32 - William: How can I create a better vector boundary to eliminate the "lip" around a 3D image?

Keywords:

fuzz, end grain, 3d slot, poker chip rack, raster strategy, stacked text, vector boundary, zero plane, clipping, easy create, ai course, slab flattening, spoil board, nesting, array copy, epoxy depth, shaker door, square corners, corner chisel, tapered ball nose