 | | Re: High Strength Powered Steerable pivot wheel
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(...) I think that no current set includes them. But it's available as spare part in the Pitsco/DACTAcatalog (US only). (...) This is actually the same solution I was thinking to implement: steerable front and rear wheels and side wheels driven like (...) (23 years ago, 21-May-01, to lugnet.robotics)
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| | Re: High Strength Powered Steerable pivot wheel
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The problem appears to be leverage. I have no exposed shaft at all. But the force while climbing stairs still managed to snap the axle at the pivot point. I was suprised the axle broke and the retainers did not just pop off. A steerable shrimp is a (...) (23 years ago, 21-May-01, to lugnet.robotics)
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| | SHRIMP building was: Re: High Strength Powered Steerable pivot wheel
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(...) In the near term, I've opted out of the "steer in place" requirement. That way I go from four outputs to two. With an 8-wheel SHRIMP, I steer like a four-wheel steered (FWS) car does at low speed. Also, I don't have to worry about the friction (...) (23 years ago, 21-May-01, to lugnet.robotics)
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| | Re: SHRIMP building was: Re: High Strength Powered Steerable pivot wheel
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(...) way I (...) four-wheel (...) 8-wheel (...) You drive all the wheels together in the same direction (first output), and use a motor to steer the front and rear groups in sync (second output). Is this what you mean? Very clever. You cannot steer (...) (23 years ago, 22-May-01, to lugnet.robotics)
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| | Re: SHRIMP building was: Re: High Strength Powered Steerable pivot wheel
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(...) Yes, something like this: | is a wheel pointed straight, \ and / are wheel turned left or right = is the body Going straight: | | |==| |==| | | Turning left: \ \ |==| |==| /==/ Turning right: / / |==| |==| \ \ Disclaimer: I haven't actually (...) (23 years ago, 23-May-01, to lugnet.robotics)
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| | Re: SHRIMP building
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(...) Yes, something like this: | is a wheel pointed straight, \ and / are wheel turned left or right = is the body Going straight: | | |==| |==| | | Turning left: \ \ |==| |==| / / Turning right: / / |==| |==| \ \ Disclaimer: I haven't actually (...) (23 years ago, 23-May-01, to lugnet.robotics)
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