Yes, you can build NO!, also without the center part,
but no, you can't build YES! in paper! Sorry.
Use metal or plastic.
I agree with Joachim. It is almost impossible to bend hollow paper pipes.
But you might want to try to bend a paper rod tightly rolled.
In small curvature, you would see kinks, which could be adjustable.
By the way the rod shown is from cotton swabs.
Seo, I‘ve also tried it with cotton swabs, cause the sticks are made of paper.
It does not work without kinks.
Seo, I‘ve also tried it with cotton swabs, cause the sticks are made of paper.
It does not work without kinks.
I agree. It is not a 100% kink free solution.
But please try to bend a cotton swab rod slowly from a big curvature to a small curvature and repeat bending and unbending, shaping the bending point.
I think the whole game is how to make an outer surface portion soft and to let it stretched out like wooden stick bending with hot water steam.
It is fun
Thank you very much for all good answers and the experiments. Cotten swap stike probld but I need a solution in 6 mm inner diameter. Plastic or.metal in a paper model I try to avoid. However, I believe that my little question leads to the interpreted engineers in this forum to success.
Would it be possible to use paper mache. Roll into a pipe of the required size and carefully bend it before it dries ?
Hello Bella,
I have Not seen this thread before. My solution for such shapes would be much easier. I would bend wire and Then Roll paper for rolling cigarettes around It. That's Not pure paper at all but works very good and with acceptable Speed.
Regards,
Daniel.
But it has to be empty inside!
When you use ABS as the interior former you can use pure aceton to get it dissoved.
Hi Bella,
happy new year 
Reading your thread, i had to think back several years, as i built the "Altmark" with all those pipes on the decks. I used brass rods and coloured them, later i added some cardboard material to resemble section mergings (see my comments #292 and #311). I still think, that it was a good decision (building the model in 1:250 scale).
For your scale, i think of hollow brass rods that could bend as easily as my full profile rods.
Still no substitue for pipes made of paper (if you really want to do them this way), just another suggestion.
Best regards
Lars
When you use ABS as the interior former you can use pure aceton to get it dissoved.
Thank you very much. But then what do you do with the aceton? would be extremely eco-unfriendly. Furthermore, I am unable to obtain aceton at my current location. I prefer to use solely white glue and recycled paper in my projects. That is the most effective way to keep the spirit of building paper models alive. It's not the easiest way, but it's one that everyone can do:)
Display MoreHi Bella,
happy new year
Reading your thread, i had to think back several years, as i built the "Altmark" with all those pipes on the decks. I used brass rods and coloured them, later i added some cardboard material to resemble section mergings (see my comments #292 and #311). I still think, that it was a good decision (building the model in 1:250 scale).
For your scale, i think of hollow brass rods that could bend as easily as my full profile rods.
Still no substitue for pipes made of paper (if you really want to do them this way), just another suggestion.
Best regards
Lars
Hello Lars,
Appreciate you for the thoughtful suggestion. I would do precisely what you suggested. Brass rods, on the other hand, are tough to come by in this area. As you may not notice, there is really no "hobby-shop" where I reside. And making paper models is as rare as a diamonts on a pebbels beach around here. So, as long as I'm employed here, I'll have to put my talents to the test. Back at home, I'll recreate all of the models (which I won't be able to transport) in a new method.
Aceton dissolves the ABS within seconds -> only the paper hull stays. Well, eco-unfriendly lies in the eye of the observer. Do you still use plastic bags of any kind, e.g. food wrapping?
Aceton dissolves the ABS within seconds -> only the paper hull stays. Well, eco-unfriendly lies in the eye of the observer. Do you still use plastic bags of any kind, e.g. food wrapping?
Hi Zwiebelblum,
thank you for bringing up the little bit "off-topic" issue of plastic. I don't use plastic bags at all. I just have one shopping bag... sins 2001 is what I use (the same). Then he sailed three times around the world, committing misdeeds.
All plastic items in the local industry where I work/live are biodegradable plastic (polylactic-co-glycolic acid). And when I say "everything," I mean everything.
So I'm assuming you're the same way? 
Returning to my original topic:
Making the pipe in a negative mold requires some more prep work, but you can reuse the mold multiple times. Moreover, employing plastic in a papermodel does not correspond to my concept of a papermodel. The maximum would be wood sticks.
Hello to everyone! a few minor image updates The manufacturing of a paper steam-pipe is going well, and I'm crossing my fingers that I'll be able to realize Ed Bertschy's ambition of making this model work under pressured air/ steam. In addition, I made some significant changes in engineering sections to improve functionality and design appearance. A design change is being applied to the entire govener and waterpun. So, make your own decision and express your thoughts here.
(Dear Administrator, is it possible that this topic should be moved? Please notify me)
