Moebius Cylon Raider 001

[04032012 0435]

Introduction

I got this from Bruce sometime ago in mid-February, which is to be my R&D source for creating a lighting system for it. Basically, what needs to be done is to create a roving eye that sweeps from left to right and back again and a pair of white thrusters. Although I have created the electronics for it since last year, we could not proceed further until either one of us had the model. The main reason is because even at 1/32 scale, it is not easy to put 10 LEDs into the model's 'eye'. I will attempt to explain how I overcome this and other problems.

Although the size of the wing is huge, I am more concerned about the size or rather, the width of its head, which is about the size of a thumb.

 

Here is a closer look at the Cylon Raider model as size comparison. Next to it is its clear visor part. And next to that is a 3mm LED. Next to that is a 0805 SMD LED and finally, a 0603 SMD LED.

 

Again, here is another shot of the parts, this time with a ruler for size. Now you can see the challenge in creating the Cylon Raider's roving eye. I have two choice of LEDs; the 0805 is bigger and easier to solder while the 0603 is very difficult to solder, but has a better 'resolution'. In other words, with the 0603, I can have more LEDs in the circuit board. However, averagely, out of 10 0603 being soldered, at least 4 will get danaged from the soldering iron or, worse lost in the worktable's debris.

Note: Later on, in another project, I discovered that by using tweezers instead of double-sided tapes to hold the 0603 LEDs, their survivability went up.

 

My first idea was to use the 0805 LED since the PCB board's thickness is about the same width of the 0805 LED. All I have to do is to design the PCB with the copper tracks ending at the edge of the board, then stick the LED sideways and solder the joints.

 

This is how I plan to mount the PCB inside the model. The upper yellow line represents the inner wall of the head while the bottom yellow line represents the lower part, or floor of the head. The red lines are actually the PCB. The plan is to create/design a PCB that fits into the head with enough space for the LEDs to be visible through the slit. And the PCB will depend on both the plastic pillar and the floor of the head to secure it. Hopefully, the electronics will the thick enough to touch the inner wall that will align the LEDs. I am using SMD version for the microcontroller instead of the DIL version which is too bulky to fit properly.

 

This is the diagram on how the thrusters are to be assembled. There is nothing to worry about here except to light-proof the assembly (and also the nozzle) since the plastic easily lets light through (to some degree). Also, you must create your own mounting piece for the 5mm LED.

 

And this is how the nozzle and the plasme emitter (clear) looks like. The reason I chose 5mm white LEDs is because they fit into the assembly quite well (Oh, OK. I had a lot of 5mm LEDs and not the 3mm ones). But here, I must inform you that you must not mount the white LEDs too close to the plasme emitter but to distance it away. The further back it goes, the bigger the 'light spot'

 

 

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