What is that steering wheel doing on your fly? Why it's driving me nuts. Old joke for sure.
0.030 x 0.010 should not be an issue. As to the amount of air, that depends on your draw down balance more than your draw down ratio. A negative DDB will need no air, and a positive DDB, over 1.15 will need much air. Of course tank position comes into play, the longer your air gap is, (distance from die to cooling tank) the greater the affect a given air setting will have on your tube. TPU might like a draw down ratio (using diameters) up to 2 to one and a DDB around 1.05 and maybe a little hot water in the first tank
email: louis AT plastics DOT com.
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