SW2011 Sweeps following path
SW2011 Sweeps following path
(OP)
I am trying to model an optical system with a bunch of mirrors. The best way I have found to do this is to model the aperture, and then sweep along a set of centreline elements. It is a fairly simple matter of geometry to reflect these centres off of flat mirrors. This worked fine on SW2007.
SW2011 does not seem to want to follow oblique angles. The resulting body is "topologically invalid". SW is perfectly happy if I change the sweep to "keep normal constant", but this is not a particularly accurate represntation of the optical path.
Has anyone experience with this?
I have attached my sweep sketch to this. The oblique angle is around 17°.
Thank you.
SW2011 does not seem to want to follow oblique angles. The resulting body is "topologically invalid". SW is perfectly happy if I change the sweep to "keep normal constant", but this is not a particularly accurate represntation of the optical path.
Has anyone experience with this?
I have attached my sweep sketch to this. The oblique angle is around 17°.
Thank you.
JHG






RE: SW2011 Sweeps following path
RE: SW2011 Sweeps following path
I just did a simple look-alike test (with SW2011) without a problem.
RE: SW2011 Sweeps following path
Eric
RE: SW2011 Sweeps following path
RE: SW2011 Sweeps following path
RE: SW2011 Sweeps following path
Thank you for the model. I have done it that way in the past, and it has the advantage of accounting for the field of view of the lens and light bucket/image plane. I got into the sweeps in SW2007 because it was a lot less work, especially when you tidy up behind the mirrors.
I may have to go back to this.
RE: SW2011 Sweeps following path
Dan
www.eltronresearch.com
Dan's Blog
RE: SW2011 Sweeps following path
It is not Eend's lofting that works. It is the mirroring, especially when you remember to not merge everything. :(
Welding must might work. It lets me take advantage of my 3D routing sketch.
RE: SW2011 Sweeps following path
RE: SW2011 Sweeps following path
thread559-206224: Light cones and mirrors, how to do it?