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Tire-Making, not nearly finished but...
....I have managed to get the casing machine to make useful fabric.
Pics here- http://www.norcom2000.com/users/dcim...ng/test04.html http://tinyurl.com/3mrkzj8 Image #1 shows the first (A) second (B) and third (C) attempts. All casings are shown with their bare (thread) sides towards the camera. (A) was the first attempt on 1 November 2010, but was totally unacceptable. The laying mechanism was friction-driven and would slip on any imperfection. (B) was made 30 July 2011, after numerous improvements to the machinery, but there were still some problems lurking. Also it changes in consistency halfway through, as I stopped the machine to mess with some adjustments. It is greatly better than (A), but is still coarse. In the bottom (better) half of piece (B), there was a periodic error that caused the threads to be laid 3 next to each other, and then 1 spaced apart. The 33-tex threads are spaced at 40 TPI (my original goal) but are not spaced evenly. The latest (C) attempt was made today, after a few changes & adjustments and much improved over (B). It appears to have less threads than (B) but it does not; both have 40 TPI. I was going to take a full-length photo, but realized that there's not any reason to. It looks the same all the way along its length; there are no "bad spots" to even look at. Image #2 is a close-up of the middle areas of (B) and (C), to better show the differences. I feel that the casing machine is basically done, in that it is entirely acceptable for use and I don't believe that any further improvements can be made without spending a much-larger amount of money and time on it. The variation in thread spacing is less than 1/40th of an inch, over a piece of fabric that is 10 inches wide and 70 inches long. It did take a long time, but then I figured this would be the most difficult machine of the three to get working correctly. ------------ Next up: a tire-building machine (where the casing, beads and tread area are combined). ...Kinda-sorta like the real professional industrial ones, except not automatic and not costing $25,000. {-And hopefully not taking so long to complete, either. :P } |
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