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#301 2025-08-19 06:08:26

tahanson43206
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Registered: 2018-04-27
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Re: Calliban Postings including links to notable contributions

For Calliban re #300

The NewMars forum is a great place for a report of a project such as this one!  If you decide the material would make an article suitable for a publication, you have everything you need assembled and readily accessible.  There are numerous categories into which this project would be a good fit. 

(th)

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#302 2025-08-22 17:34:07

tahanson43206
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Re: Calliban Postings including links to notable contributions

For Calliban re Geosynchronous orbit...

Thank you for that bold vision in https://newmars.com/forums/viewtopic.ph … 55#p233755

If you have a moment, please add the circumference to be joined.  By coincidence, I've been working on a way of dealing with challenges of gas gun launch in the Air Capture topic, and one of the variations would use pipes of modest diameter. I wonder what stresses would act upon a chain of pipes at GEO.  The mass of satellites that clamp on would tend to pull the pipe out of true, and the Sun would heat the pipe while cold of space in shadow would cause it to contract. That would be an interesting engineering challenge.

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#303 Yesterday 17:25:39

tahanson43206
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Re: Calliban Postings including links to notable contributions

For Calliban  re wind tower... https://newmars.com/forums/viewtopic.ph … 27#p233827

Thanks for showing us your project in stages!  Congratulations on your progress so far, and I hope the final installation goes smoothly.

The rope drive concept surely has ancient heritage.

Will it have an idler wheel to take up slack when the rope stretches?

(th)

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#304 Today 02:15:28

Calliban
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From: Northern England, UK
Registered: 2019-08-18
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Re: Calliban Postings including links to notable contributions

My plan was to mount the lower pulley and clutch on long bolts, which would be tightened to adjust the tension.  However, an idler pulley may work better, as it would allow the clutch to remain at constant height.  This woukd make interface with tools much easier.  I may modify the design to include an idler wheel.


"Plan and prepare for every possibility, and you will never act. It is nobler to have courage as we stumble into half the things we fear than to analyse every possible obstacle and begin nothing. Great things are achieved by embracing great dangers."

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#305 Today 06:11:53

tahanson43206
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Registered: 2018-04-27
Posts: 22,306

Re: Calliban Postings including links to notable contributions

For Calliban re #304

Thank you for considering the idler pulley idea.  That wheel and axle will consume a part of the energy you are transferring, so there is a tradeoff with convenience. How would a Dutch craftsman have dealt with this?

Come to think of it, are there any examples of this situation still running?  Your mill is smaller than the ones you showed us from your trip, so it may not be possible/reasonable to make a direct comparison. However, it ** is ** fun for us to watch a modern craftsman dealing (once again) with problems of mechanical energy capture systems.

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