Draft a wrapped sketch around cylinder

Forum|Forum|3 years ago
May 12, 2022
4 replies
4351 views

I have a tool path that is cut out or a cylinder. The tool path is around the cylinder. I know that I can use relations to have it wrapped proportionally around the cylinder, but I want to create drafting feature that can show the dimensions by angular dimensions. With the first angle being 15 degrees and the total length as 360 degrees.

I need some help from a Creo expert who might be able to help.

Cameron

2D Drawing

Patriot_1776

22-Sapphire II

Using a wrap feature you can make a reference diameter and use that in an equation with Pi to get your 360deg but expressed as a linear dimension. You could create the sketch externally before the wrap and put that on the dwg, but you'll have to manually create dimensions and substitute the linear dimension text as your angular dimensions.

tbraxton

22-Sapphire II

One way to get the dimensions you want is the following:

Create the solid model of the cylinder with the cuts in it.
Copy the outer surface of the cylinder as a quilt.
Create an anchor origin to use when developing the cylinder to a flat pattern
Flatten the quilt of the OD of cylinder
Create linear dimensions (annotation dims) on the flattened quilt
Write relations to map the linear dims in the previous step to angular displacement
Insert parameters used to calculate the angular displacement
Show the parameters in the relevant view

See this video for details on how to implement this solution.

(view in My Videos)

P

pausob

19-Tanzanite

Did you consider wrapping your driving sketch (which is in terms of "degrees" in the horizontal axis) around a cylindrical surface which has diameter of 360/pi

Then project the wrapped curves onto your actual cylinder: