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Step 3Fabrication: Making stuff, Breaking stuff
Next using a straightedge, draw a line from the opposite corners of each corner of the marks you made from the fan placement. You should make an X, the center of this X is the center of your circle. Using a compass or Scribe set to 1.5" (or 40mm for those metricly inclined) draw a circle using the center of the X as the center point, giving you a 3" or 80mm circle. Repeat for the other fan.
Using a dremel with a circle cutter set for 1.5" radius, cut out the cirlcle. It might help to use a automatic center punch to mark the pivot point to have a deeper hole to move around on.
Once this is complete you can use some 400 grit sand paper or a fine toothed file to clean up and square the edges if need.
The Switch hole is cut with a cut-off wheel and the power cord hole is drilled. Test fit the switch and the cord keeper, since it is much more difficult to make any modifications after we make the bends.
Using a dremel with a circle cutter set for 1.5" radius, cut out the cirlcle. It might help to use a automatic center punch to mark the pivot point to have a deeper hole to move around on.
Once this is complete you can use some 400 grit sand paper or a fine toothed file to clean up and square the edges if need.
The Switch hole is cut with a cut-off wheel and the power cord hole is drilled. Test fit the switch and the cord keeper, since it is much more difficult to make any modifications after we make the bends.
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