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Resolution in 3D CNC Carving
Question
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From contributor F: To increase resolution, you need to make sure that look ahead is turned on. It will run slower, but the detail will pop more. Fanuc G8P0 is off, G8P1 is on. From contributor A: In my 3D program (Enroute), there is a percent overlap. The greater the overlap, the better it is on details. I would assume all programs have this, or something like it. Also, check the clean, rough setting. Like contributor T, I have a rough pass with a .125 ball nose bit and a clean pass with the same bit. I've never needed a 1/16 bit, but I can see where it would be better at detailing than what I'm using. By the way, how long did it take your CNC to cut this? What software? From the original questioner: The size is 10x15 from a laser scan. Using Enrout 3pro. The 1/8 was clean up pass with 90% overlap. From contributor K: I work with scan point cloud data all the time. 1 of 2 things possible using scan data. 1. The geometric data is rounded during the point cloud filter operation the scan of the object. Filter clean up of STL by curvature works best. 2. Use a flat end mill, not a ball end mill. No need to pick out the corner material when using flat cutter. No REST material machining needed.
From contributor J: A couple of things for resolution. Smaller tool diameter or higher percent of overlap will increase the resolution. Looking closely, though, I would guess that you are seeing the ball ends radius as your limiting item in resolution, so smaller tooling would help. Another item for determining machining resolution can be the resolution that you scanned at. If you have taken a smaller scan and stretched it, your point density of your scan could be the limiting factor to the resolution that you are able to reproduce the data. Would you like to add information to this article? Interested in writing or submitting an article? Have a question about this article? Have you reviewed the related Knowledge Base areas below? 
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