This is a replica of the Doctor's Astral Map as seen in the William Hartnell Story 'The Web Planet'. It also appeared in the lost adventure 'Galaxy Four', may have appeared as a museum exhibit during the Troughton era and was re-created for the David Bradley Tardis in the Capaldi Story 'Twice Upon A Time'.
At one point in the web planet the Doctor slides open one of the map panels to hide something within the body of the Astral Map. This functionality has been duplicated, in fact it was necessary to access the on/off switch of the Lego light brick
Rigid Ink PLA
White, Black, Clear and Silver/Grey
Inkjet printer Decal paper and clear protective coat sealant spray.
Clear acryllic (up to 2mm thick)
Standard Sewing pin
For optional illumination one off Lego light brick (either 2x2, or 2x3)
The top section and the operating panel are both white.
The base and the control ring are silver or grey the 'Screen' frame is black.
Depending on whether you are going to use a Lego light brick the map panels will be printed either in clear filament, or white.
The Map Panels
You can make up your own decals for the map panels. There are plenty of images of star maps on the internet. Bear in mind the panels are quite small, so cruder images work better. Remember to spray the Decals with clear sealant before trying to use them.
I painted the raised ovals on the top section black, so that the map appears to run to the edge when the panels are glued in place. To stop the black paint wicking into the into the white of the top section prime it with white paint first.
Attach the larger opening map to the flat side of the top useing a cut down sewing pin as a swivel hinge. If you keep the pin long enough to protrude through the hole in the top section it can be glued into place on the inside without any danger of getting glue on the hinge or the map.
If you are useing a light brick, on assembley make sure that the on/off switch is accessible through the opening map. Where you don't want the light to shine through, you can line the opaque parts of the top with silver foil.
The Front Screen
I used a hobby saw to cut 2mm thick acrylic to size to fit into the recess on the back of the front screen. I haven't tried this, but you may find it easier to cut a clear, flat piece of blister pack plastic to the right shape. I'm not sure what sort of glue would be suitable to stick it in place. Hot melt glue gun might work.