RobDraw Posted May 19, 2014 Share Posted May 19, 2014 (edited) I have a simple lisp that offsets a line or an arc in both directions to a given defined width. It does require you know what radius to draw the arc centerline, though. It was made for ductwork but could be used for piping just as easily. Edited May 21, 2014 by RobDraw Quote Link to comment Share on other sites More sharing options...
mikekmx Posted May 20, 2014 Share Posted May 20, 2014 I have a simple lisp that offsets a line or an arc in both directions to give a defined width. It does require you know what radius to draw the arc centerline, though. It was made for ductwork but could be used for piping just as easily. would you mind sharing that with me Rob? I do 3D but i got a mate who would find that very useful i'm sure. Quote Link to comment Share on other sites More sharing options...
Sengna Posted May 20, 2014 Author Share Posted May 20, 2014 Sengna - the larger radius of 18 you have correct, the inside radius should be 6 and not 12, 12 is the center line radius so you would subtract 6 from 12 = 6. rkent- I got you, thank you Quote Link to comment Share on other sites More sharing options...
Dadgad Posted May 21, 2014 Share Posted May 21, 2014 would you mind sharing that with me Rob? I do 3D but i got a mate who would find that very useful i'm sure. Mike you might want to take a look at these lisps by Lee Mac, as they would likely prove helpful to your friend, or just about anybody else, for that matter. http://www.lee-mac.com/offsetpolysection.html http://www.lee-mac.com/doubleoffset.html Thanks Lee! Quote Link to comment Share on other sites More sharing options...
Sengna Posted May 22, 2014 Author Share Posted May 22, 2014 Thank you Lee Mac for your generosity, will buy some beer when you come in town. Quote Link to comment Share on other sites More sharing options...
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