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Ball and cylindrical joints [message #68411] Tue, 21 May 2013 07:59 UTC Go to next message
avatar Robotex  is currently offline Robotex
Messages: 11
Registered: May 2013
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Hello. I want to design and print working human arm model. I have a questions about materials. Strong & Flexible plastic looks good but what thickness must details have to avoid flexibility? How thick must be outer sphere of ball joint to make it strong?
Re: Ball and cylindrical joints [message #69685 is a reply to message #68411 ] Wed, 12 June 2013 13:41 UTC Go to previous messageGo to next message
avatar UniverseBecoming is currently online UniverseBecoming
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Registered: March 2012
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That depends on the scale of the joint you are designing. What size joints are you planning to design?






It always was. It always was because somethingness cannot spawn from nothingness. And in the was of the past there is the forever of the now. Only now. Only now and nothing new, for anything new would add to the infinite, yet there can only be one infinite. Only one. The universe is only becoming something new in the delusion of our minds. This delusion that makes life worth living in our perceived universe becoming.
Re: Ball and cylindrical joints [message #69695 is a reply to message #69685 ] Wed, 12 June 2013 15:17 UTC Go to previous messageGo to next message
avatar Robotex  is currently offline Robotex
Messages: 11
Registered: May 2013
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Junior Member
between 1cm and 1.5cm at diameter
Re: Ball and cylindrical joints [message #69776 is a reply to message #69695 ] Thu, 13 June 2013 22:01 UTC Go to previous message
avatar UniverseBecoming is currently online UniverseBecoming
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Registered: March 2012
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Senior Member
For that scale I'd go with about a 1 mm for wall thickness. That should be sufficiently strong for your application in that material.






It always was. It always was because somethingness cannot spawn from nothingness. And in the was of the past there is the forever of the now. Only now. Only now and nothing new, for anything new would add to the infinite, yet there can only be one infinite. Only one. The universe is only becoming something new in the delusion of our minds. This delusion that makes life worth living in our perceived universe becoming.

 
   
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