Subject:
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Re: Gripper and lift arm with single motor
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Aug 1999 18:44:47 GMT
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Original-From:
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Jonathan Knudsen <jonathan@oreilly.AVOIDSPAMcom>
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Viewed:
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1109 times
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Hi David,
Are you sure Ben's grabber won't work for you?
Using a smaller and lighter grabber based on
his original design, I can pick up one of those
wheels. What exactly doesn't work?
Here's my design (Minerva):
http://members.xoom.com/jknudsen/Robots.html
Regards,
Jonathan
At 06:28 PM 8/9/99 GMT, David Walton wrote:
> I hope someone can help me with this
>
> I tried most of the weekend to try and build a mechanism to grab an item
> (49.6x28 VR wheel) and lift it using one new type motor (the ones in the
> RIS). All my attempts seem to either self destruct or just didn't work.
>
> Basically my designs were based upon fixing an axle at the lift pivot point
> and using a pair of bevel gears to produce rotation to drive a gripper.
>
> What I would like to be able to do is drive the jaw once it is closed the
> lift mechanism would engage. I just couldn't get it right and its getting
> me a bit frustrated.
>
> NO I can't just use another motor and some touch sensors, I need the motors
> for drive adder/subtractor based tracked vehicle and the sensor inputs for
> navigation and object detection
>
> Anybody give me any pointers to designs on the web which actually work - I
> know Ben Willamson had a design but that doesn't give enough movement of
> the gripper jaws for my project
>
> TIA
>
> David Walton
>
> Email: d.walton@ndirect.co.uk
>
> Take a look at my homepage (still under construction though)
> http://www.walton.ndirect.co.uk/
>
> Now on ICQ: 44277445
>
> "If it ain't broke don't fix it !!"
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Gripper and lift arm with single motor
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| I hope someone can help me with this I tried most of the weekend to try and build a mechanism to grab an item (49.6x28 VR wheel) and lift it using one new type motor (the ones in the RIS). All my attempts seem to either self destruct or just didn't (...) (25 years ago, 9-Aug-99, to lugnet.robotics)
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