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MRummler
en respuesta a: BeKirra

I have the lisp file attached in original message, if you see i also created a reset function which sets DS to nil. I use DS as a global variable to keep the duct size constant as elbows, more straight duct, and reducers are created. That's why i have an if statement where if ds does not equal 999 it starts off asking for pt2 rather than asking for the liner width, sheet matal size, and initial start point... So i don't want to make ds 999 at the start of the function.