田宮 75027 線路追蹤蝸牛II機械模型

【Walk the Line】

This delightful kit constructs a model snail which follows its way leisurely along a black line drawn on a white paper surface, all the while waving its eyes adorably back and forth. When the snail finds a black line, its LED lights up green. It uses an infra-red LED and phototransistor to control the twin motors. The performance of the model can be adjusted using the speed switch (low or high) and sensor adjustment dial. Sensor, circuit board and motors come pre-wired. The kit requires screw attachment and some simple wiring to complete.

【邊擺動眼睛邊沿著黑線行走】

這隻蝸牛模型懂得沿著於白紙(場地)上用油性筆描繪的黑線行走，並且會邊走邊擺動牠的眼睛。秘密在於牠身體內的紅外線LED和感測光源的光電電晶體，通過控制2個摩打來沿著黑線前進。模型備有切換高速﹑低速的按鈕和調整感應器感度的旋鈕，可以調節脫軌時的動作。行走時只要感測到黑線就會亮起身體前方的綠色LED燈照亮頭部。感測元件的底板﹑感測器﹑摩打皆已預先連接好。組裝時只需要少量的接線﹑上緊螺絲和嵌合式裝配就能完成。

【How it Works】

When the sensor is positioned over a black line, the right motor moves into action, propelling the snail forwards and to the left. Once the sensor moves off of the line, the right motor stops and the left motor starts up, moving the snail forwards and to the right. When it finds the line again the process repeats, with the snail moving its way forwards in this manner.
*Please note that the line should be at least 3mm wide, and any turns of greater than 8cm radius.