poly lines in autocad
poly lines in autocad
(OP)
When I save drawing in Solidworks as dwg .When I open in autocad 2002 the 3D curves come in as thick polylines, any way to solve this problem will be greatly recieved.
Thanks in advance JimP
Thanks in advance JimP






RE: poly lines in autocad
Jeff Mowry
Industrial Designhaus, LLC
http://www.industrialdesignhaus.com
RE: poly lines in autocad
John Richards Sr. Mech. Engr.
Rockwell Collins Flight Dynamics
Forget rich and famous - I want to be rich and unknown.
RE: poly lines in autocad
if it is in print , try to change the printer settings.
if it is showing in autocad drawing,
please check tools-options-line font for sketch curves line thickess.
thanks,
Regards,
Murugan.S
Sr. Design Engineer,
CAD/CAM Research Center,
GlobalSoft Pvt Ltd,
New Delhi, INDIA.
RE: poly lines in autocad
What I like best about this forum is that Iam working in Scotland yet can recieve help from every corner of the world. Keep up the good work.
JimP
RE: poly lines in autocad
Well there is probably a simple reason for that. Since you are cutting a sphere, the edge produced is a spline, not a circle. True it is a circle in theory if it is a circular hole and it's axis is coincident with the center of the sphere. However that is a special case and I doubt that SW looks for that special case every time you cut a hole which could be any shape in a body which might have been created by a number of methods. And when you transfer that 3D spline there is no reason why either end of the transfer should be looking for a special case to see if a general closed spline might just happen to be a circle (and even if it did, what tolerance would you what it to assign to the circularity test, hmmm?)
While Solidworks does in fact look for the special case INTERNALLY when doing measure dimension, etc. that is on an individual command basis and can afford the time to look and it can use the definition data for the feature (don't know if they do, but they could). When converting to other CAD systems, bear in mind that the transfer is coming from a Parasolid model definition and the feature data does not transfer and is irrelevent.
Hope that made sense. I read it over and can't think of a better way to phrase it.
John Richards Sr. Mech. Engr.
Rockwell Collins Flight Dynamics
Forget rich and famous - I want to be rich and unknown.
RE: poly lines in autocad
I get the thick polylines with all splines when transfered to autocad with 2004 SP0.0. I only made the sphere to try and explain to the forum my problem.
I have just tried the same part in solidworks 2003 generating a drawing and transfering to autocad, and the drawing is perfect with no thick lines?
Thanks JimP
RE: poly lines in autocad
John Richards Sr. Mech. Engr.
Rockwell Collins Flight Dynamics
There are only 10 types of people in the world - those who understand binary and those who don't.
RE: poly lines in autocad
I believe it is an Autocad problem because I have noticed the same problem since we went to SW2004. It is easy enough to fix in Autocad by selecting the polyedit command. Then select multiple on the command line, now select all the lines in the file using a window. After you have selected them it will ask if you want to convert lines and arcs to polylines, select no. Now you will have several choices, 1 of them being width. Enter a "w" then give it a width of 0. Should give you the results you are looking for.
mncad