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  1. 07-09-2013 #15
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
    Last Activity: 05-04-2020 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,571. Received thanks 325 times, giving thanks to others 8 times. Referred 1 members to the community.
    I agree both designs could be made strong enough, but the basic formulas imply that you can make it stronger with less material if just one tube is used. It's just a matter now of looking at what material is available, and seeing which design ends up with the best strength per pound (or lb!) ratio.
    Last edited by Jonathan; 07-09-2013 at 02:12 PM.
    Old router build log here. New router build log here. Lathe build log here.
    Electric motorbike project here.
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