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Description: Dual gearbox from Tamiya. This is an excellent way to get started quickly with robotics! You may have read many websites about servos, gear head motors, DC motors, stepper motors, and the pit-falls associated with each. We swear by these gearboxes because of their price, their ease in assembly, and the ability to be controlled by low-cost motor driver ICs. This gear box can drive two wheels independently in either forward or reverse. The twin-motor gearbox can also be configured for two different gear ratios (fast and faster). Gearbox comes unassembled as shown.
Based on 2 ratings:
3 of 3 found this helpful:
I have to be honest, when I ordered this I expected it to be junk since it’s a lot of plastic. However, after watching the excellent SparkFun video showing proper assembly.. I got it built in no time without screwing up any gearing. I built a lightweight little tank ‘bot around it and it works very well. I can’t recall which gear ratio I utilized.. I think the same one shown in the video.. but it moves around at a very snappy pace. The included motors should be easy to replace if the need arises because they’re a very common size. I wouldn’t expect this to power a 'bot of any significant weight, but for your average room prowling cat-chaser, it’s a good buy.
I used this gear box for my Arduino tank project and it works flawlessly. It’s also nice that you can have a few different positions for the drive axles. I first assembled it with the ratio of 58:1 and the tank moved too fast, and didn’t have the torque to get over a DVD cover. I disassembled it and made it 203:1. Now this tank has some torque and will really climb! Assembly is easy and reconfiguration is pretty quick. I recommend this to everyone and I’m actually thinking of getting a couple more! Thanks, Sparkfun!