Using Google

to Design aLathe Carriage Stop

By Dick Kostelnicek

Presented at theHome Metal Shop Club

May 8, 2010

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

Draw ToolsRectangle

Line Circle Arc Polygon Freehand

Layout ToolsTape Measure

Protractor

Modify ToolsPaint

EraseMove

Push/Pull Rotate Follow Me Scale Offset

With the mousewheel and shiftkey you can

RotateZoomPan

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.

Warehouses, Plugins, Tutorials

• Warehouse websites provide componentslike nuts and bolts that can be imported intoa drawing.

• Plugin websites provide scripts to performspecialized tasks like mirroring orcomputing the centroid of a face.

• Tutorial videos are numerous on Google’swebsite.

Drawing a Lathe Carriage Stop inGoogle SketchUp

Use theRectangle and thePush/Pull tool toroughed out partsfor a CarriageStop.

Dotted guide linesare added with theTape Measure andProtractor tool.

A closed profile of theprismatic way cut-outis drawn with theLine tool.

The cut-out isremoved with thePush/Pull tool.

The Tape Measuretool adds additionaldotted guide lines.

Holes are locatedand sized with theCircle tool on theface of the parts.

The Push/Pull toolbores the holes intoor completelythrough the parts.

An X-ray view showsthe location of holesand “push-outs” orcuts allowingidentification ofpossible conflictswith their positioning.

The screw’s section isrotated about a circle withthe Follow Me tool. A hexkey socket is inserted withthe Polygon andPush/Pull tools

The half section of thesocket head cap screwis drawn using theTape Measure,Protractor, Rectangle,and Line, tools.

A dowel iscreated withthe Circle andPush/Pulltool.

Another screwis created byrotating it’s halfsection aboutits hole withthe Follow Metool.

Dimensionsand color ortexture may beadded andturned on/offin differentviews calledScenes.

Once entered,dimensionsare dynamicand changewith themodel.

Annotationis added toa Scene.

Scaled Printing is Not Suitable inthe Free Version of SketchUp

• Export screen view as png bmp jpgand use a graphics program like MS-Paintfor sizing and printing.

• Alt+Print Scr and paste screen image intoMS-Word. Crop with the Edit-Pictureoption and then print.

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

Now, let’s make the drawingwith SketchUp.