Hello.
I have built this model, I give you a little feedback:
Overall, the model works well.
I was afraid with all these gears, the motors are less efficient, but do not tighten, it's good.
- The drive has good speed, not too slow or too fast.
- Steering has a little play, but it works as long as you do not abuse the machine.
- Stabilizers and blade are really powerful, just with mini-LA.
- The turret rotation is fast enough, not too bored. Moreover, there is no cable in the turntable, it turns indefinitely.
- All functions of the arm are well executed. The two L-motors are not too many, in fact, a M-motor would not have enough strength.
- All tested with 7.2V battery, then with 9V, you will not have to worry either.
The overall design is nice, though less well finished for the turret.
You should know that I built without certain parts, thus making the adaptation is possible, it just adds a few parts, and requires a bit of savvy.
It is difficult to build, requiring 2000 parts, but will fill you when you have done.
I therefore advise you.