This is not your father's Menorah. The Grunambulorah is made from old radio tubes, LED's, plumbing fittings, knife switches and it's all powered by 2 AAA batteries. I love the warm glow and it's got that funky Steampunk vibe. Here is how I did it.
Step 1: Materials and tools
- Dremel with 1/4 inch glass cutting bit.
- 3/16 inch regular bit to elongate the hole inside of tube
- Table Saw
- Tape Measure
- Drill with 1/16, and 1/8 inch bit to drill pilot holes
- Soldering Iron
- Heat gun to shrink tubing.
- Screw driver
- 18 gauge wire
- 9 knife switches
- 9 red led's
- double AA battery holder
- 2 AA batteries
- 9 radio vacuum tools of assorted heights
- 9 47-ohm 1/4 watt resisters
- 9 copper pipe connectors with 1 1/8 inch inside diameter
- 9 PVC caps with 1 inch diameter
- Oak 1/4 inch thich
- Hot glue
- Gorilla Glue
- White Carpenter's Glue
- Hammered brass spray paint
Step 2: Drill the vacuum tubes
- For safety wear eye protection. The bit will send small glass particles flying. The Dremel does not actually drill the tube but actually grinds it gradually.
- Decide where to drill the tube. The best placement is somewhere you will be able to feed the LED up so that the whole tube glows. Tubes have a layer on the bottom that would shield the light but the layer is easily drilled thru
- Put a drop of cutting oil on the tube.
- Put the dremel on high speed and let the bit gently rest on the glass. It will begin to grind away the glass. DON'T push it or the tube will break.
- Put more oil on about every 5-10 seconds. Don't let it dry out.
- Be especially careful just at the end and don't let the Dremel slam into the tube.
- remove the small piece of glass from the drill bit. See the photo. It looks like a small button.
- use a 1/4 or slight smaller drill bit to pierce the bottom shield of the tube so that you can feed the LED up.