03-06-2025 Q&A: Topographic Map Carving, Router Vibrations, and Molding Toolpath Adjustments

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In this Q&A session, we discussed techniques for carving topographic maps, dealing with router vibrations, and adjusting molding toolpath heights for different material thicknesses. We also covered strategies for improving 2D profile toolpaths and preventing unwanted edge marks. The session included insights on using epoxy with 3D-printed objects, selecting router bearings, and trimming 3D objects in Vectric software.

Key Tips Learned in this Q&A:

• Carving Topographic Maps: You can either cut individual layers or pocket different depths to create realistic terrain features. Adding dyes and epoxy can enhance the look.
• Preventing Router Vibrations: Worn brushes and bearings can cause Makita routers to vibrate, affecting cut quality. Consider upgrading to a spindle or securing the router speed dial to prevent unwanted adjustments.
• Improving 2D Profile Toolpaths: To avoid unwanted tool marks, use a larger end mill, increase ramp lengths, and experiment with climb vs. conventional cutting. Lead-in/out settings can also help.
• Adjusting Molding Toolpaths for Different Material Thicknesses: Instead of scaling, use node editing to adjust the profile while maintaining proportions. Redraw the profile to match the new material height.
• Using Epoxy with 3D-Printed Objects: PETG works well with epoxy pours, but PLA might warp due to heat. Test with slow-curing epoxy for better results.

Questions Answered in this Q&A:

• 00:05:15 - Should I carve a topographic map using layers or pockets?
• 00:07:22 - Will hollowing out wood cause warping?
• 00:16:35 - Can epoxy be used over 3D-printed objects?
• 00:19:49 - How do I troubleshoot and eliminate an unwanted edge left by a 2D profile toolpath in VCarve Pro when using allowance/separate last pass?
• 00:24:43 - How can I prevent marks left by my 2D profile toolpath?
• 00:29:52 - Why is my Makita router vibrating?
• 00:32:21 - Why is my "knuckle" object thinning as it extends past a rounded edge in my VCarve Pro design, and how can I fix it?
• 00:45:17 - How do I properly spin the bottom of a bowl in Vectric Aspire?
• 00:49:42 - How do I adjust the molding toolpath height for a different material thickness?

Keywords:

cnc, vectric, topographic map, 3d carving, epoxy, router vibration, molding toolpath, climb vs conventional, 3d-printed objects, profile cut issues