I have seen plenty of these on YouTube and wanted to make my own. KipKay does a good one and this is virtually a straight copy, the main difference is that I use salvaged parts from an old remote control, an old mouse, and a couple of cheap toothbrushes.
I did find that the batteries need to be good ones as both motors run off the same single AA battery when going forward or backwards and with the cheap motors I used this quickly drains cheap batteries.
The switches take quite a lot of abuse so you make prefer to bolt them in place rather than use hot glue. I have noticed mine are beginning to split apart so I will probably bolt them down.
This is another one I looked at https://youtu.be/a7SJiBc8bpo
Here are a couple more of mine
I have included the wiring diagram at the end of the video.
The components are:
2 small electric motors – 1.5 volts ideally
1 flat strip of metal to mount the motors
2 SPDT switches (Single pole, double throw)
The full description of these types of switches is:-
Single Pole Double Throw (SPDT) Type, 1NO + 1NC Contact,
Momentary Action, Lever Arm Actuator, 3-Pin Terminals.
You can probably salvage these from old electrical goods
or if you can wait order them cheap from eBay
2 AA batteries
1 battery holder (for 2 AA batteries)
1 length of connecting wire
3 medium paperclips
1 small wheel or a plastic bead
Some heatshrink tubing would be helpful for making the wheels on the motors
I didn’t have any and had to improvise.
Optionally you may choose to add an on/off switch to save the batteries when not in use.
Tools:-
Soldering Iron
Solder
Hot Glue Gun
Wire cutters/nippers
Pliers
Here is a selection of related playlists
Electronic projects https://www.youtube.com/playlist?list=PLA5a2xPRSrB00lxaX8BD46F1QDJTe7Em4
Crawlerbots and Robots playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB0ypbT8Tr-CZfXPIiaOHUlL
Simple electronic projects playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB0qd7Hrqoc3II0OU-bx64TA
Simple projects playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB2HXSqJPl6Kv9J_pHHp4cIF
Electric Toy Cars playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB0yTUYmJSS3ML5xxaBzHl3e
My Channel page https://www.youtube.com/user/GrandadIsAnOldMan
Oldest videos https://www.youtube.com/user/GrandadIsAnOldMan/videos?flow=grid&view=0&sort=da
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Playlists https://www.youtube.com/user/GrandadIsAnOldMan/playlists?flow=grid&view=1
I have thousands of videos on YouTube, to find one try my search guides https://youtu.be/ceBSOoOHcgw or https://youtu.be/Zj4UgwkwYRk
My “GrandadsOtherChannel” channel is generally where I will host the videos that give extra detail or longer versions of the videos I post on my main channel https://www.youtube.com/channel/UC2mp_L8RoxMyw3ewwSecZ6Q
Facebook https://www.facebook.com/grandadisanoldman/
Merchandise – Check both of these links if you are interested as the prices will vary and the shipping charges will be different.
https://www.redbubble.com/people/grandadiaom/portfolio
https://grandadisanoldman.cottoncart.com/
Post time: Jun-12-2017