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Using Google

to Design a

Lathe Carriage Stop

By Dick Kostelnicek

Presented at theHome Metal Shop Club

May 8, 2010

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What is Google SketchUp ?

3D content creation computer program

Draw as you would with paper and pencil Intuitive with short learning period

Has most CAD features for the Home Shop

Free Internet download with training video

Additional I/O functionality for $500

Numerous web components and plugin

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Draw ToolsRectangle

Line

Circle

Arc

Polygon

Freehand

Layout Tools

Tape MeasureProtractor

Modify ToolsPaint

Erase

Move

Push/PullRotate

Follow Me

Scale

Offset

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With the mousewheel and shiftkey you can

Rotate

Zoom

Pan

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Drawing in SketchUp

Edges are straightlines

Face is a closed loopof coplanar edges

Surface is smoothedgroup of faces

Component is groupof edges & facesDynamic Components can have attributes attached to them.

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Warehouses, Plugins, Tutorials

Warehouse websites provide components

like nuts and bolts that can be imported into

a drawing. Plugin websites provide scripts to perform

specialized tasks like mirroring or

computing the centroid of a face.

Tutorial videos are numerous on Googles

website.

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Drawing a Lathe Carriage Stop in

Google SketchUp

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Use theRectangle and the

Push/Pull tool toroughed out partsfor a CarriageStop.

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Dotted guide linesare added with the

Tape Measure andProtractortool.

A closed profile of the

prismatic way cut-outis drawn with theLine tool.

The cut-out isremoved with thePush/Pull tool.

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The Tape Measuretool adds additional

dotted guide lines.

Holes are locatedand sized with the

Circle tool on theface of the parts.

The Push/Pull tool

bores the holes intoor completelythrough the parts.

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An X-ray view showsthe location of holes

and push-outs orcuts allowingidentification ofpossible conflictswith their positioning.

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The screws section isrotated about a circle with

the Follow Me tool. A hexkey socket is inserted withthe Polygon andPush/Pull tools

The half section of thesocket head cap screw

is drawn using theTape Measure,Protractor, Rectangle,and Line, tools.

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A dowel is

created withthe Circle andPush/Pull

tool.

Another screwis created by

rotating its halfsection aboutits hole withthe Follow Metool.

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Dimensionsand color ortexture may beadded andturned on/offin different

views calledScenes.

Once entered,dimensions

are dynamicand changewith themodel.

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Annotationis added toa Scene.

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Scaled Printing is Not Suitable in

the Free Version of SketchUp

Export screen view as png bmp jpg

and use a graphics program like MS-Paintfor sizing and printing.

Alt+Print Scrand paste screen image into

MS-Word. Crop with the Edit-Pictureoption and then print.

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SketchUp Free Version I/O

Output Graphics png jpg bmp

Output Google Earth dae kmz

Input Graphics jpg png tif bmp tga psd Input Autodesk 3ds

Input USGS dem ddf

Input Google Earth dae kmz

Useful Printing requires Google LayOut that comeswith the $500 Pro version

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Now, lets make the drawingwith SketchUp.