--- In Indoor_Construction_at_yahoogroups.com, Tapio Linkosalo <tapio.linkosalo@...> wrote:
> ... and playing the devil's advocate, I now ask if this means that you
> have to assemble your paper tubes yourself?
Is additional adhesive required? (Yes.) Therefore the builder must "assemble" paper tubes. But the paper, glue, wax, rolling mandrel, and instructions of the 72 ways to do it could be provided in a kit.
<<And what if you use carbon
> tubes instead of paper, would you have to laminate them yourself?>>
Again, if additional adhesive is required to accomplish to process, builder/flyer gets to do it. In the case of factory prepreg carbon available commercially, I see no contradiction if (kit maker for example) can bend something useful from just prepreg and heat-- roughly in the category of bending balsa wing tips with water.
<<And
> what about the paper in the paper tubes - that is made of paper fibers,
> but possibly they do not need glue to hold together as tissue
Then fine, a theoretical paper tube without any adhesive substances would be fair game to buy/obtain. One could also hollow out a wooden dowel and sell that as a tube. Cutting/shaping is not limited in my BOM, only the components' attachements to anything else.
<<but still you get the grey
> area between go and no-go...>>
I fail to see the grey so far in your examples. But yes there may be some down the road. (Example, 3D printer, not a threat yet.)
MB
Received on Tue Oct 23 2012 - 10:01:44 CEST