Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Good price-to-quality ration. Does what is expected. small, light.
This item is shipped with 3 screws (two bigger and one smaller screw). To fix the arm to the servo, it needs to be screwd tightly. The shipped big screw is too long to do the work. And the shipped small screw is too thin to hold properly.
I purchased 6 pcs of these units. 1 of them had problems from the day 1. Presumably 1 tooth from a gear was faulty, and it couldn't drive wanted position in all cases. After about 10 minuts of running, it became totally stuck down (broken) unit.
Affordable toy, but don't rely on this with anything pricey (e.g. helicopter). I used these attached to a FPGA board, and they work pretty well.
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