這1/200 橫濱高達是2023年頭展地贈送的紀念模型，製作尚算精緻，只是關節活動能力較弱，同年橫濱1:1高達發表展期將延至2024年3月31，於是就決定在展覽完結前製作以1:1場地為參考的專屬方案，這是個「音」と「光」と「可動」による臨場感の演出。
以個人的製作慣例，音效與光效已成為標準，加入可動是今次的目標方案。
製作以線自動機（Wire Automata）方向開始，然而體積限制，動作要求象真程度，需要不斷反複測試，整個過程困難重重，引線要最早開始及最後收緊，期間不斷拆解纏繞繩結對情緒控制亦是極大考驗。整個製作歷時8個月，當中遲遲沒更新主要因為過程有極大爛尾風險。This 1/200 GUNDAM FACTORY YOKOHAMA is a commemorative model presented of the exhibition in early 2023. The production is quite exquisite, but the joint mobility still weak. When Yokohama 1:1 Gundam exhibition has announced will be extended to March 31, 2024, I was decided to make the model before the end of exhibition. This build is combine of "sound", "light" and "movement".
Based on my personal practice, sound effects and lighting effects have already a standard, therefore adding movable effects will the goal of this time.
The build is started with the concept of Wire Automata. However, due to realistic movements is require but the model size is quite limited. Continuous and repeat test is required and was very difficult. The wiring job require to started at the earliest stage together with electronics wiring and building tasks. The wiring tightened job can only to be done on the final stage. During this period, the solve of winding knots require continuously dismantled by control emotions. It is also a great test for myself. This build take 8 months to complete.
Play List : https://youtu.be/XPEqS9mWDuw?si=WlHeEoZmAJHc1tlT
- 整體設計
- 由設計開始，以半跪連貫動作為目標，整個過程頭，手臂，手指雙腳都有動作。
- 手指
- 以真實機械人製作為本，筋腱用強韌幼線製作，筋腱線收緊以做出動作。大至效果如影片示範。
- 手臂，雙腳
- 手臂，雙腳基本都是以同一原理，而機動牽引部份都是集中於股肌位置，加入微型滑輪用以改變出力位置。
- 頭，腰
- 頭同腰主要簡單左右移動或前後的固定活動，因此用彈簧做出自動復位的效果。
- Overall design
- Starting from the design, the goal is to achieve continuous half-kneeling movements. The head, arms, fingers and feet all move throughout the process.
- Fingers
- Based on the production of real robots, the tendons are made of strong thin wires, and the tendon wires are tightened to make movements. The effect is as large as the video demonstration.
- Arms, feet
- The arms and feet basically use the same principle, and the motorized traction part is concentrated on the femoral muscles, and micro pulleys are added to change the position of the force output.
- Head, waist
- The head and waist mainly move left and right or have fixed activities front and back, so springs are used to achieve an automatic reset effect.
1/200 實際大小對比 (1/200 Actual Size Comparison)
- LED and Pulleys Distribution
- 0201 Package LEDs is mainly in used.
- Control separately by microcontrollers.
- Join System. Finger/Arms/Legs
- The most difficult portal of this build for me.
- The movement is driven by wire tension for finger/arms and legs.
- Demo Video is shown as below.
- Deck Design
- The base is build by transparent plastic box and the Deck is made by plastic plate.
- 0201 package LEDs is used together with WS2812 for Up/Down indicator.
- A hall sensor is used for detect stop position of motor which are located at the back side of hanger.
- The UP/DOWN movable range is around 1.8 cm.
- Circuit Diagram
- With the use of I2C, the Arduino Nano act as master and the two Attiny85 are slave. The two Attiny85 control Gundam Head LEDs and Deck Hanger LEDs respectively.
- An InfraRed receiver is used for remote control.
- DFPlayer is used for sound effect and sound track player.
- Arduino Nano is the master controller of both Attiny85 and partial LEDs in Gundam body, UP/Down indicator LEDs wall at Deck side and also the InfraRed decoder and DFPlayer.
- L293DD is DC motor driver, the driving signal is provided by Arduino Nano, as the DC motor using 3V as power source. A DC-DC converter is used as well.
- Circuit Physical Layout
- This is the physical layout of those component of the overall circuit.
- Programming
- Arduino Nano is used with two Atting85 as 2 x I2C slave. Three parts of program is used
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