Basically it's a device to record the suns path by burning a track onto a piece of paper. It works really good. This is a great device to just have sitting around the house for a conversation piece.
Click on the picture for a bigger view
Here's what you'll need:
Cut all the pieces as follows:
Stack the two arms and upright with double backed tape. Mark a full radius on one end and cut.
While they are stacked drill a 1/4" hole in the center of the arc.
Cut a taper on the hanger starting 1" down, going to 3/4" wide.
Cut a fine slot 3/4" long into the 3/4" end of the hanger for the sheet metal.
Glue and clamp the legs, blocks and upright as shown above.
Put the bolt through the holes of the arms so you have them aligned. Glue and clamp the spreader 1/4" back from the end of the arms.
Drill two holes the size of your wire approximately 3/8" back from the end of the arms centered on each one.
Bend a radius in the wire to go around the flask.
Bend the ends 90 degrees to fit into the two holes. This should be fairly tight but not overly tight or your flask will not hang straight down.
Sand, stain and finish all the pieces.
Mount the arm to the upright using a 2" X 1/4"-20 screw with a flat washer on each side and a wing nut.
Cut a piece of galvanized sheet metal 3 1/2" X 7" to 8 1/2" long.
Bend it into a radius that is evenly spaced about 1" to 1 1/2" away from the flask.
Drill and countersink a hole for a #6 screw in one arm centered on the side half way between the back of the spacer and the upright. This is to hold the hanger.
Put the screw in half way for now.
Drill and countersink a hole in the hanger about 1/4" up from the 3/4" wide end to clamp the sheet metal.
Insert the sheet metal into the slot in the hanger and tighten the screw.
Put the wire around the flask and insert the ends into the two holes on the arms.
Slide the hanger into the arm and adjust it so that the sheet metal is about 1" to 1 1/2" away from the flask.
That's it, now you are ready to make some final adjustments and burn a sun track.
We hope you've enjoyed this project and have good success with it. Remember, if you ever have any problems with our projects just drop us a line and we'll try to help. Since we build every one of these projects we have a pretty good idea of how to get through them. We also make lots of mistakes so we can help avoid them.
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This is what it looks like: