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A review of how to prepare your panel for machining on the 3 axis CNC router. Topics covered include:

• exporting from Rhino into MasterCAM
• configuring MasterCAM settings
• using the parallel finish toolpath operation
• using the contour toolpath operation
• previewing your results with the “verify” tool
• displaying toolpaths
• using “backplot” to estimate machining time

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This video will cover the basics of using the contour toolpath in MasterCAM. The Rhino file and MasterCAM file from this tutorial are available for download here.

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A short video introducing MasterCAM. This video will cover some important settings that must be configured when creating toolpaths for the 3 axis CNC router in the BEB, including:

• Setting up the correct Machine Group
• Configuring tool settings
• Setting up the appropriate tool library

The video also demonstrates how to dynamically change your view of the model space, including:

• zoom by scroll wheel
• rotate by click and drag middle mouse button
• pan by alt + click and drag middle mouse button

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This video will review how to set up your file when exporting from Rhino to MasterCAM. Of particular importance are the following:

• The origin of Rhino’s coordinate system should be coincident with the top of your stock’s thickness
• The X and Y dimensions of your stock should extend in the positive (in top view, X+ = to the right, Y+ = upwards) direction from Rhino’s origin
• Use curves (a rectangle and a vertical line) to indicate the “bounding box” that represent the size and shape of your stock

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We didn’t cover this in class, but many of you seem to have figured it out on your own. There are numerous ways to do this, but here is a video demonstrating one easy method.

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If you are having difficulty modeling the Thonet chair, here is a video reviewing the basic techniques we covered in class. Unfortunately, the left side of main toolbar is cut off in the video, but you should still be able to follow along.

Building a Thonet Chair from CSPECCE on Vimeo.

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Here is a video that shows how to model three different sized glasses and also demonstrates how to calculate the liquid volume capacity.

Modeling three drinking glasses from Rhino Tutorials on Vimeo.

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Here is a narrated walk through the two getting started tutorials. The first video only covers the surface creation part of the tutorial, the second one goes through the building of the flashlight.

“surface creation” from Rhino Tutorials on Vimeo

“Modeling a flashlight” from Rhino Tutorials on Vimeo

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Here is a brief reminder of the basics of the Rhino interface and the fundamental geometry types that Rhino supports. Check out these brief videos, created by McNeel, the publisher of Rhino.

An overview of the Rhino 4 user interface from Rhino Tutorials on Vimeo.

Basic object types in Rhino from Rhino Tutorials on Vimeo.

And here is a longer, more in depth review (not brief).

Rhinoceros webinar with Mary Fugier: Part 2 “Basic objects” from Rhino Tutorials on Vimeo.

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