RG Unicorn Gundam #2 - Beam Magnum

Build process of RG Unicorn Gundam Note #2, still a long way to go...😅

RG Unicorn Gundam 模型中的武器設計都很精緻，Bean Magumn 內 e-Pac 是造成可裝拆式的，為了回應其精緻設計，將其裝拆設計再加光效及小量功能。

The attach/deachable e-Pac unit of Beam Magnum is a very detail modelling design of RG Unicorn Gundam.  In order to response to this, I add some more more gimmicks with maintain this feature😄

e-Pac - Attiny85
Trigger - Micro-switch
Gun Shot effect - 2020 package WS2812B x 1
Aim effect - 0402 package RGB LED x 2
Cosmetic effect - 0402 package White LED x 4

Power Source is provided from Palm, and connected by strong magnets

Build Process

1. The main power connectors are made by copper wire and soldered with small magnet

2. The third connector is used as signal feedback/control for main unit which will build in coming stage.  As no more space is available hence it is made by string in watch bands

3. Two strong magnets installed in the handle of Beam Magnum, a micro switch is used as gun trigger

4. The e-Pac has installed an Atting85 micro-controller with external connections to the Magnum body.  Overall wiring will as the photo below
- 0402 RGB LED x 2 are installed as Aim
- 0402 White LED x 4 are installed as front area of the  Magnum for simple fade in/out effect
- 2020 WS2812B x 1 is used for gun fire light effect
- Micro switch to trigger gun fire effect

5. Detail structure of movable body

6. Zoom view of e-Pac

Thank you for watching