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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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Junior Member
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 offline UniverseBecoming
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Registered: March 2012
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Senior Member
That depends on the scale of the joint you are designing. What size joints are you planning to design?




I prefer to know nothing about everything rather than everything about nothing.  

James
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 offline UniverseBecoming
Messages: 749
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.




I prefer to know nothing about everything rather than everything about nothing.  

James

 
   
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