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| Robotics Chat Specific to discussions about robots and the making of. |
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3rd April 2008, 04:16 PM
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| Experienced Member  |  A counterbalance would also help the main joint. Notice how the motors (top) are an effort to balance the arm, the Hero1 arm could only lift (barely) 0.5kg  |
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3rd April 2008, 04:55 PM
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| Experienced Member    | You need to reduce dead weight by all means. you have to spend much more time designing your arm than constructing it, otherwise, believe me, you end up building a useless metallic piece of crap! This is a number 1 rule that we learn in engineering schools. sorry for being so direct, but honestly, you have to! |
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3rd April 2008, 06:54 PM
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| New Member |
__________________ If it is broken, let's fix it. If it is working, let's make it better. |
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9th April 2008, 07:41 PM
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| New Member  | Guys, do you have a circuit to control 3 unipolar stepper motor?. im using the printer port and 3 ULN2003a chips to interface the 3 motors. I'm new here, how can i post the pic of my robot arm, i already finish the arm but i need a controller. thanks |
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9th April 2008, 07:48 PM
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| Experienced Member | I wonder what happened to baberjaved? |
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15th April 2008, 05:55 AM
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| Experienced Member | Well you guys were pretty much right... Theres no way the motors will be able to lift up the weight by themselves... Now em adding some gears to each joint and changing the design a bit... I'll post the updated pics once I am done =) |
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15th April 2008, 05:59 AM
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| Experienced Member | Looking forward to the pics. |
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