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  #11  
Old 09-23-2010, 10:00 AM
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peter taft peter taft is offline
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You my friend are a paper mechanic ! The level of accuracy and sheer determination to get those tracks running smooth as silk is outstanding. The video is great also. Top dollar Vorcha
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  #12  
Old 09-23-2010, 10:30 AM
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Originally Posted by peter taft View Post
You my friend are a paper mechanic ! The level of accuracy and sheer determination to get those tracks running smooth as silk is outstanding. The video is great also. Top dollar Vorcha
Thank you!
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  #13  
Old 09-23-2010, 10:35 AM
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I'm impressed.
Now, if you could just get started on creating a functional paper spring... : )
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Old 09-23-2010, 10:50 AM
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Very COOL - thanks for sharing.
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  #15  
Old 09-23-2010, 02:18 PM
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brilliant! If one day I tried to project and build something with tracks, I surely would think about this solution! your tutorial is simple and clear BRAVO!
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Old 09-23-2010, 02:50 PM
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I'm impressed.
Now, if you could just get started on creating a functional paper spring... : )
Acually this is a good idea... seriously...!
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Old 09-23-2010, 03:47 PM
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Very impressive idea for the tank tracks.
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  #18  
Old 09-23-2010, 06:56 PM
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Lightbulb A Spring to be sprung

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Originally Posted by Vorcha View Post
Acually this is a good idea... seriously...!
A few forms of the SPRING to keep you busy.... 1} A spring that RETAINS {i.e pulls two parts inwards} 2} A spring thats used under COMPRESSION {i.e pushes two parts outwards} 3} A spring that FLEXES {i.e a leaf spring} all of which would come in very nicely in several areas of our hobby
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  #19  
Old 09-23-2010, 08:29 PM
John Wagenseil John Wagenseil is offline
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lingks and sprongs

Thank you for the elegant example of paper engineering.
Not cutting all the parts free until they are assembled is brilliant. It saves having to mess with an impossible number of fiddly bits.

If this can be applied to the Polish 1/25th tank models I might try building one. I have put off trying one because the tracks scared me off.

Now that I think about it we have been suffering from collective blindness, I bet at least 1/3 of the forum users are wearing an example of the track right now: your link style watch band!

Regarding springs:

Here is an untested concept.

For compression springs: sand wood dowel smooth and varnish it, or paint with acrylic floor wax, and re sand until very smooth.

Roll dampened glue lightly glue soaked paper strip around dowel and let dry. I have found wood glue works best and gives very strong paper glue-composite material. Dowel should slide freely in paper tube.

Pull dowel 1/2 way out of tube, stuff tube with chopped rubber bands.
At the opposite end of the tube from the end with sliding dowel, plug end of tube with short length of dowel, glue this plug dowel in place or better yet cross drill tube and plug and fix in place with pin made of a segment of steel pin or a bamboo pin (cut from skewer or chopstick, both available at your food mart in Asian Food section).
The completed spring will consist of tube with sliding piston which squishes the rubber band bits stuffed in tube.
Tube wall can be strenghthened by wrapping it with glue soaked thread.

This compression spring should give a small amount of buffered movement.

Maybe some one will be brave enough to try to build one and see if the concept actually works.

Tension spring is rubber band segment under tension. Eash end of the Rubber band could be attached to eye of small fish hook and stretched between parts that need pulled together. Don't forget to take file to fish hook point or you might have nasty surprise one day.

Leaf springs that look right are easy just stacked curved paper strips soaked in dilute carpenters glue so they set ridgid and strong.

Functioning leaf springs would be hard. Maybe alternating layers of heat formed curved plastic and paper strips, or layers of paper and rubber band, or a stack of paper strip-paper clip segment sandwiches. or alternating strips of curved paper which have had nylon thread glued to the tension side of the curve. For the truly obsessive something could probably be kludged out of an old wind up alarm clock main spring.

I know rubber bands eventually go bad, particularly in smoggy or humid eniviroments, and I suspect rubber bands with their hi sulpher content might rot paper they are in contact with. Does anyone have experience with long term document storage, where documents where bundled with rubber bands and put away for a long time?

Last edited by John Wagenseil; 09-23-2010 at 08:41 PM. Reason: to impove spelling
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  #20  
Old 09-23-2010, 09:57 PM
Zathros Zathros is offline
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I think this thread should be a sticky. It is excellent.

For a completely different reason I used liquid electrical tape to simulate rubber on some paper tires I made for a paper toy car for my son. While it was still tacky I rolled them on a textured surface and when dry, they looked just like real, little, but real tires.
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