Does this work?

https://www.dropbox.com/s/pbhc3mkbc3ol34m/SEOS-18-1.4-2.EPRT?dl=0

It's not allowing me to attach "The extension eprt is not allowed"

Hi
Is anyone out there able to convert this eprt into a format I can use in Sketchup.
It's currently beyond my ability to redraw this and your help would be invaluable.
Thanks.
http://www.diyaudio.com/forums/attachments/group-buys/323150d1357912757-waveguides-horns-seos-18-1.4.zip

Ahh..ok!

Here's a screenshot of my DWG export settings.

That's great Dave, thanks so much.
I found where you turned off the extensions but could you tell me what you meant by the reversed faces and endpoints?

Connollys Sub Speaker grill.dwgApologies...I'm very new to this forum.
Here's the Sketchup fileConnollys Sub Speaker grill.skp

Hi all...I hope someone can shed some light on this.
I've designed a grill mesh in 2D to have Laser cut.
When I export to a 2D DXF or DWG file format some of the lines are running over at the intersects.
I've meticulously checked my Sketchup drawing and it's correct.
A couple of times it has converted correctly but most of the time it just won't work.
It's frustrating!
Thanks.