Diorama Castle

Overall

LVL1 Sign

The LVL1 sign is a collection of four duplicate circuits. Each circuit provides a high voltage charge to a xenon flash tube. The voltage is not discharged such that the tube flashes, but instead allows streaks of plasma to form between the two ends.

The circuits are divided into two parts. The first part is the charging circuit from disposal cameras with a flash. The internal flash module is scavenged for its transistor, step-up transformer, resistor and diode. The components are wired as before on a perfboard. The second ciruit is based on a strobe light. The trigger ciruit charges a capacitor. When charged, the capacitor allows current to light the neon lamp which triggers the SCR. The triggered SCR, shorts out the capacitor through the trigger coil with the output end and ground attached to the flash tube. The camera circuit does provide a capacitor and trigger coil, but they are not capable of making the plasma streaks as bright as the substituted components.

The construction of the sign is in three parts. The sign has a simple stained wood fascade. The actual sign portion is a lexan rectangle with xenon flash tubes arranged and wired inplace to form "LVL1". The main body consists of three layers of circuit boards. The bottom layer has the high voltage charging circuit made from the camera parts. The middle level has the charging capacitor and SCR trigger circuit. The top layer has the trigger coils plugged into IC sockets. The trigger coils do short-out, so they are in sockets for easy replacement.

Finally, the sign is powered by 4 AA batteries in a switch box. Each letter in the sign has a seperate switch.

Torches

The diorama has four torches. The torches consist of flickering LEDs scavenged from electronic tea candles. The torches are made from stained dowls chained to a backboard. A second dowl is used to seat the LED. The LED has wires running inside the support chains to backboard and through the wall. The torches are then wired into a switch box.

The Monster

Every castle deserves a monster and that is what we have here. The monster is a mystery McDonalds toy wrapped in surgical tape (not that a real monster wouldn't be wrapped in surgical tape.). The tape has been painted with UV paint for added effect. The monster lies on a segmented slab atop a simple wooden frame.

Plasma Disk

"Lightning bolts on a dish" could be used to describe this staple of mad scientist lighting effects. In this case, the effect is supplied by a "Plasma Disk" device sold as a rave accessory. On the back is a belt clip, which is used to attach thin plastic sheets for anchoring in the castle window. Even without a diorama, everyone needs one.

EL Wire

There are two segments of EL wire. The first segment is wrapped around the top scalfolding. The second segment is wrapped around the monster's slab. Each segment has its own driver and can opperate in steady, slow blink and fast blink modes.

Switches Everywhere

The diorama is operated by three switch banks. One switch box is exclusive to running the LVL1 sign. Another switch box holds the torch power switch and a momentary switch for operating the "Black Light". The last bank is the EL wire drivers.