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Step 3Arms
You'll need to mount the servos onto the top part of the toy's case. This is going to be your first modification to the body. Hold the two mid sized servos to where the original arm mechanism was and notice how to fit them.
The photo on this step shows a mounted servo, and the original mechanism. You'll of course want to have both servos mounted, one for each arm.
Use the dremel to cut away the plastic on the ends to fit the servos. Make sure you use a low speed on the dremel. Drill Style cutting bits work best.
- I used the glue gun to create a nice tight fit for the servos.
- I then melted two tiny holes in the plastic to fit small screws for additional support.
Mounting the arms to the servos is a little tricky. I don't have a clear photo of how i did it, but be creative. The servo packs come with a variety of bits and extensions. Be creative with those extensions. I took a 4 arm extension and trimmed it down to fit within the arm. No glue or screws were neccessary.
Also, once you figured out how to mount the arm to the servo, make sure the servo and arm are both in the centered position. Becuase remember, the servo doesn't spin 360 degrees. It has a Start and Stop position! So for full movement, you're not going to want the arm mounted at bottom of the servo's positioning, or it will only be able to go up from that point :)
The photo on this step shows a mounted servo, and the original mechanism. You'll of course want to have both servos mounted, one for each arm.
Use the dremel to cut away the plastic on the ends to fit the servos. Make sure you use a low speed on the dremel. Drill Style cutting bits work best.
- I used the glue gun to create a nice tight fit for the servos.
- I then melted two tiny holes in the plastic to fit small screws for additional support.
Mounting the arms to the servos is a little tricky. I don't have a clear photo of how i did it, but be creative. The servo packs come with a variety of bits and extensions. Be creative with those extensions. I took a 4 arm extension and trimmed it down to fit within the arm. No glue or screws were neccessary.
Also, once you figured out how to mount the arm to the servo, make sure the servo and arm are both in the centered position. Becuase remember, the servo doesn't spin 360 degrees. It has a Start and Stop position! So for full movement, you're not going to want the arm mounted at bottom of the servo's positioning, or it will only be able to go up from that point :)
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Feb 14, 2010. 7:51 PMDemascus
says:
project looks good so far, I wanted to pass on that if your looking for motors with good gearing IE powerful, go to your local wrecking yard and take out the motors that move the seats in the car. Powered seats, Are amazingly strong use 12volts and have reduction gears in place. Some even have flexable shafts.
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