The Fitzroy Storm Glass is a weather instrument that became popular in the 1860's for predicting the weather. It is a sealed glass vial that contains chemicals that crystallize in various formations depending on changes in the weather. Admiral Fitzroy, Captain of the HMS Beagle, conducted a study and perfected the formula during the years of 1831 to 1836. The exact origin of the instrument is unknown and believed to have been invented around the 1700's. Because the instrument is somewhat fragile, I wanted to make something that would allow hanging on a wall and safely illuminate for observation. The hanger is made to prevent the storm glass from tipping over. White leds with a variable dimmer using a LM317 are used for illumination. I got the storm glass from Klockit
Step 1: General layout
The parts for the wooden hanger is made from 1/2 inch hardwood plywood. Three pieces are used. A back plate, base shelf and a piece midway to stabilize the tube on the base.
Step 2: Base and Shelf
Two pieces are used for the base and shelf. All 1/2 inch hardwood plywood. The base has a portion bored out to hold the base of the storm glass. I used a 2 inch hole saw to bore half-way down then a 1-1/2 inch flat spade bit to take out more area. A screw driver or chisel can be used to clean out the rest. The top shelf, uses a 1 inch bore saw to make the hole.
Step 3: Holes for leds
Drill 3 holes in the base for the leds. Wire the leds in parallel and attach a paired lead to run to the led dimmer. Use hot melt glue to hold leds and connections underneath the base.
Step 4: Back panel holes
Four holes need to be drilled on the back plate to mount the base and shelf. Use 1-1/4 flat head screws and pre-drill holes slightly smaller than the screw's diameter to prevent the wood from splitting. Countersink the holes to keep the screws flush on the back. Attach a screw, then carefully square-up the assembly before attaching the second screw. This will allow accurate and square placement of each piece.