One of the goal of the design is to reduce the amount of "vitamins" or buyed parts as much as possible, and at the same time to simplify the assembly.
So I modified the main chassis piece some to allow to snap in the wheel's servo motors, hoping they would hold in place firmly. The results are great, four less screws and motors quickly intalled.
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Then again, you get those screws with the servos, but I guess now you can use them somewhere else.
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You are rigth, but now it is faster to attach/detach the servos. I've also noticed those screws are quite weak and tend to wear off. I left the holes anyway, in case someone wants to use the screws them anyway :)
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