I found this D2-5 line tracker kit on AliExpress for under $4 dollars free shipping. @Robothut
I found this D2-5 line tracker kit on AliExpress for under $4 dollars free shipping.  @Robothut
Uploaded January 2026 | Updated September 2026, 2 days ago
Amazing how many parts they can sell you for under $4 dollars with free shipping. Yes, a few of the parts are crap like the battery holder and the instructions are nonexistent. But what do you want for under $4 bucks. And it works. I just found today a version for under $3 dollars that uses TT gear motors. So ordered it, let's see how long it takes to arrive and if I receive it and if it works.
I found this D2-5 line tracker kit on AliExpress for under $4 dollars free shipping.Inside a Bar toy robot Slot Machine.3d Printed low-cost Line Follower robot base. Type 1.1960s MR. Zerox robot arrived in a bag. Part 1 Made in Japan by Horikawa in the 1960s.Modifying a China repro Smoking robot gear box for Sterling external cumbustion engine.E.C.E. Sterling engine powered walking robot. Links for more videos on Robothut channel.Ultrasonic obstacle avoidance platform you can build.1950s Radicon Robot demo. Yes, another one in the shop for a tune up. Links for more Radicon videos3d printed, Biped walking Gyro Robot, rev. 2.E.C.E. Sterling engine walking robot with body, arms and brass heat dome tube. Part 4.Robothut on Monster Nation,1-13-2005. Episode #29 Discovery channel.Wind powered Walking Bi Ped robot kit for under $10 bucks. It is a challenge to build.
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I found this D2-5 line tracker kit on AliExpress for under $4 dollars free shipping.

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