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I made this for a local amateur theatre.
The ball was hidden in the roof until the second to last scene, when it descended for a dance number and then retracted afterwards.
Because there wasn't enough space to lift the ball completely out of sight, a set of doors was needed to stop the ball interfering with other stage lighting during the rest of the play.
The ball was hidden in the roof until the second to last scene, when it descended for a dance number and then retracted afterwards.
Because there wasn't enough space to lift the ball completely out of sight, a set of doors was needed to stop the ball interfering with other stage lighting during the rest of the play.
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Signing UpStep 1Parts & tools
I didn't buy anything for this project. All materials and parts were things I already had or found In the theatre.
The mecancal bit
.2 lengths of steel U section slightly longer than the distance I needed to lift the ball.
.3 wheels that fit into the U section. ( I had to trim mine down a bit to make them fit)
.3 long M6 bolts for wheels
.35 M6 washers
.2 long M8 bolts for U section
.2 M6 bolts and wing nuts to attach mirror ball and motor to plastic conduate
.1 mop bucket filled with spare wheels and pulleys to use as a counter weight.
.4 hinges
.nails
.assorted lengths of screws
. length of plastic rope
.length of black plastic 20mm conduate
.small loop of fishing line
.2 thin strips of hard board to line U section with
.various blocks of wood
.scraps of chipboard
.pieces of thin plywood large enough to enclose the mirror ball
.mirror ball and motor
.black paint
The electrical bit
.24v power supply (salvaged from an old amplifier)
.4 single pole change over relays
.4 diodes to suppress the back E.M.F. from the relay coils
.1 change over non latching push switch.
.3 normaly closed non latching push switches.
.1 24v motor with a 500 to 1 gear box and strong drive shaft for lift winch.
.1 24v motor with a 200 to 1 gear box for door winch
.1 mains voltage coil change over relay for control from stage lighting dimmer
.2 scraps of strip board
.lots of wire. I used Red, Black, Orange and Green
Tools used
table saw
chop saw
electric finnish nail gun
electric drill
set of hole saws
set of drills
20mm spade drill bit
hammer
Allen key
The mecancal bit
.2 lengths of steel U section slightly longer than the distance I needed to lift the ball.
.3 wheels that fit into the U section. ( I had to trim mine down a bit to make them fit)
.3 long M6 bolts for wheels
.35 M6 washers
.2 long M8 bolts for U section
.2 M6 bolts and wing nuts to attach mirror ball and motor to plastic conduate
.1 mop bucket filled with spare wheels and pulleys to use as a counter weight.
.4 hinges
.nails
.assorted lengths of screws
. length of plastic rope
.length of black plastic 20mm conduate
.small loop of fishing line
.2 thin strips of hard board to line U section with
.various blocks of wood
.scraps of chipboard
.pieces of thin plywood large enough to enclose the mirror ball
.mirror ball and motor
.black paint
The electrical bit
.24v power supply (salvaged from an old amplifier)
.4 single pole change over relays
.4 diodes to suppress the back E.M.F. from the relay coils
.1 change over non latching push switch.
.3 normaly closed non latching push switches.
.1 24v motor with a 500 to 1 gear box and strong drive shaft for lift winch.
.1 24v motor with a 200 to 1 gear box for door winch
.1 mains voltage coil change over relay for control from stage lighting dimmer
.2 scraps of strip board
.lots of wire. I used Red, Black, Orange and Green
Tools used
table saw
chop saw
electric finnish nail gun
electric drill
set of hole saws
set of drills
20mm spade drill bit
hammer
Allen key
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Next up is the battle axe falling from the ceiling !
DO NOT PRESS BUTTON .. Press , SWING
I was thinking of a small lever switch under the carpet so when someone steps on a small bit they get cut in half !
Nicely done!