 | | Re: New Crane... —Alvin Brant
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| | | (...) Well, after many dissapointments over the weekend: (URL) finally got to raise the main boom on this creation: (URL) like I need to stiffen up the boom a bit... (URL) sill is going to be a fixed jib added for the lifting test, and a Luffing jib (...) (16 years ago, 7-Jul-08, to lugnet.technic)
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| | | | | Re: New Crane... —Thomas Avery
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| | | | | (...) faired better than my crane that decided to go down in a hurry (serious operator error :-) (URL) Looks like I need to stiffen up the boom a bit... (...) You're dealing with a relatively shallow boom cross section (i.e. thickness is fairly thin (...) (16 years ago, 9-Jul-08, to lugnet.technic)
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| | | | | | | Re: New Crane... —Alvin Brant
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| | | | | | (...) You mean plastic bends?? Dang :) I actually have had a good bit of success stiffening up the boom. The majority of the give in the boom was coming from the point where the sections are pinned together. The axles were flexing and letting the (...) (16 years ago, 10-Jul-08, to lugnet.technic)
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| | | | | Re: New Crane... —Ross Crawford
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| | | | (...) Ha! You're not a real crane builder till you've had at least one massive failure ;) Looking good Alvin. And you'd be surprised how much steel booms bend - check out this pic for an example: (URL) up a piece of paper along it to see the bend) (...) (16 years ago, 10-Jul-08, to lugnet.technic)
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| | | | | | Re: New Crane... —Alvin Brant
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| | | | (...) Ross, Check these pics out....the first one is my favorite "boom flex" photo, and the second one is a pic of the boom flexing on the original cc8800-Twin! Enjoy... (URL) (16 years ago, 10-Jul-08, to lugnet.technic)
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| | | | | | Re: New Crane... —Ross Crawford
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| | | | (...) (URL) (16 years ago, 11-Jul-08, to lugnet.technic)
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