E5 Lab 5

Introduction to SolidWorks II: manufacturing your part(s)

Work in your musical instrument groups.

1. Design the parts you need for the mechanism you designed in the last lab.

• The part that connects to the servo should have 3 holes that are sized and spaced like the three holes at the end of the bar you created in the last lab (using our tutorial, or

• Any pivot points between pieces should have 5 mm hole for a nylon insert (to reduce wear and friction, but allow rotation).

• Any slots should be 5.4 mm to allow sliding.

2. Prepare the parts for milling.

• Even though the plastic board is only about 5 mm thick, make your design 9 mm thick.  This will ensure that the milling machine cuts all the way through the board.

• When you finish your pieces, add some tabs every several cm's along the edge so that it can be milled without detaching.  The milling area is rectangular, so if you have circular pieces, put the tabs every 90 degrees.   The tabs should stick out between 0.5 and 1.0 cm from the body of the part being milled, and should be 2 to 3 mm in width.

• The two steps above are shown below using the bar from the first SolidWorks lab as an example.

3. Make an appointment with me to mill the parts sometime before next Friday, 10/28.  It should take less than an hour.  You can bring a book or homework -- most of the time is spent waiting around.

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Carr Everbach Engineering Department Swarthmore College