I was thinking about tyre shape and being circular might have been the cause?Not sure Jon, these are the tyre type where you have to apply them face down then wet the back to get them to release. It may have been the angle??
Had to check just a single setting on mineCheers guys.
Simon, I suggest only using it on setting one. It is possible to warp the plastic on setting two, leading to having to but a spare sprue. Don't ask me how I know.
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