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This is an awesome dome projection system that we built for a camping/arts festival. A single projector can shine an image across the entire dome by bouncing off of a spherical mirror. The surface of the dome is translucent, so the images can be viewed from either inside or outside.

The spherical mirror dome projection scheme was pioneered by Paul Bourke, who has posted lots of information about how to do it.

The dome structure is a PVC dome using hub connectors from SonoStar Hubs. Many domes have coverings on the outside, draped over the structure, however we wanted to have the inside form a screen, so we created a covering that hangs on the inside instead.

Animation in main image is by Automatagraphics and Featherfurl

Step 1: Materials & Tools

Dome

2v Geodesic Dome hub kit $220 (predrilled, comes with nuts and bolts)

1/2" Schedule 40 PVC pipe 33 x 10 ft. @ $1.67 = $55

Covering

6 mil plastic sheeting 10 ft. x 100 ft. $60

Heavy Duty Shipping Tape 6 rolls @ $11/3 = $22

Vinyl flooring for templates ~ $20.

Tarp clips 30 @ $1 = $30

48" Bungees 5 @ $2.67 = $14

36" Bungees 10 @ $2.32 = $24

24" Bungees 10 @ $2 = $20

3/4" Elastic strapping 36 yd $32

3/4" Triglide slides 50 $11

Projection

26" diameter Half Dome mirror $38

Short Throw Projector $900 (a cheaper projector would probably work fine. See Paul Bourke's advice about selecting a projector)

Projector Mount $31

Plastic Shelving for platform

Flooring (Optional)

20 ft x 20 ft Heavy Duty Tarp $53

Foam tiles 69 tiles 2 ft. x 2 ft. @ $1.19 = $330

Screen Windows & Doors (Optional)

Screen Mesh 72 in x 25 ft $55

Tools

Chop saw for cutting PVC

Long rulers

Cutting mat

Scissors

Drill/screwdriver 5/8" bit

Jar Openers

<p>Looks really cool. Thanks for sharing your build!</p>

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