Sliding Head
Member
I am reverse engineering a part from an image. The part is a cylinder head for a motorcycle where all the fins are curved wth a different profile. There are seven profiles, each with 15-20 points. I have managed to create a respectable copy of the fins which then, individually, become a cutting extrusion to create the final shape of a 3d model. The sketch I have used is 60+ years old and is lacking in dimensional data. It appears that the drawing may have been scaled or suffering from a parallax issue, from copying badly, in one area. As a result to match the rest of the CAD model I need to shift some of the control point in one direction by controlled amounts - tantamount to a linear scaling from a set point. Click and dragging 150 points and maintaining shape consistency is a daunting prospect. Can I export the points in a CSV file, effectively reversing the processing of adding nodes with a CSV file? I can't find anything in the documentation about doing this.
I need to gain about 1.5 mm in 120mm.
In the Alibre I have been able to interrogate the points, but I don't get X-Y data - just a box with an X value and a Vector. I don't think this is enough to create a file from.
If I have to go back to basics to create a 2d spline, am I using a 2 word format (X and Y) for each point? Is a Excel file exported in CSV format acceptable?
In investigating this I did notice some typos in the documentation.
Select the Insert Knows tool to insert new knots on a curve know vector without changing the curve shape.
Hope you can advise me.
Regards
D
I need to gain about 1.5 mm in 120mm.
In the Alibre I have been able to interrogate the points, but I don't get X-Y data - just a box with an X value and a Vector. I don't think this is enough to create a file from.
If I have to go back to basics to create a 2d spline, am I using a 2 word format (X and Y) for each point? Is a Excel file exported in CSV format acceptable?
In investigating this I did notice some typos in the documentation.
How to Modify the Shape of a B-Spline
Section 3Select the Insert Knows tool to insert new knots on a curve know vector without changing the curve shape.
Hope you can advise me.
Regards
D