Inventor
Step 1: Draw a sketch on graph paper with exact proportions.
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Step 2: Create the layout and add dimensions to all the sides necessary. Should be 1 in x 1 in x 1 in.
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Step 3: Extrude the figure 1 in. Add a sketch on the side, then add in a rectangle 1/4 in from the top, 1/4 in from the bottom, and 1/4 in from the side without the slant.
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Step 4: Extrude the rectangle inward 3/8 of an in. Then complete steps 2 and 3 on the other side
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Step 5: This is final widget, now you can transfer this file into an STL and put it into the 3D printer.
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