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I just noticed an odd occurance in the flatten command and I want to know if there is a solution. I am creating a spline in the shape of a toroid by copying "_spline" followed by multiple data points and tangent points from an excel worksheet. The spline is perfect in autocad... but when I...

Thanks but I've learned how to enter "_spline" + all data points into command line. Pretty easy and now I'm done. Thanks for your offer. Ed

Thanks to all. Express tools did the job!

I need to export a spline into another software package that cannot read a spline. Is it possible to convert the spline to a polyline? AutoCAD will not allow me to explode the spline either. Suggestions? Thanks,

I need to draw a toroid. In the past I have done this by calculating points in excell then transferring them to ACAD as spline. Works well enough but a lot of data entry. Is it possible to enter the equation for the line of the toroid (or any other line for that matter)? How do you enter...

I need to place a specific perforation pattern in 0.03" low carbon sheet steel. I mean lots of holes ~ 5,000 with an 0.08" OD. Suggestions? Can this be done chemically with a strong etchant? How long might it take and are there ways to speed up reaction time. Is it possible to combine...

I need to place a specific perforation pattern in 0.03" low carbon sheet steel. I mean lots of holes ~ 5,000 with an 0.08" OD. Suggestions? Can this be done chemically with a strong etchant? Thanks