joining irregular chamfers

So I've designed a speaker baffle and I want to chamfer the edges. I've managed to chamfer the simple edges, but I've come to a standstill looking at the irregular faces I'd like to create. There are a number of ways these faces could be chamfered, and I'd like to explore a couple of them.

So in the file I've managed to chamfer the side edges to 1.25" depth. Basically, I'd like to do a model where the top and bottom edges are chamfered from the white lines at 45 degree angles, and a second model where all edges are chamfered to a set depth of 1.25".

So how to start out with this then? My first thought was to slice the object into sections at the chamfer lines, but I'm having difficulty doing even that.

I've got about twelve hours into autocad now, so my skills are very limited.

The rest of the speaker baffles and cabinets are fairly straightforward. It's just this center channel baffle that has me well, baffled at this point!

Any help is greatly appreciated. Thanks!

***Please disregard the attachment here and refer to the one in post #4*** thanks.

4CC 1.25 chamfer.dwg

sorry i cant open your acad file because it is an acad10 file. if you save it as an 07 or 04 we can help you. i think only a small handful have 10 right now.

i think only a small handful have 10 right now.

Students can download AutoCAD 2010 for free from http://engineersrule.org (or better yet download Inventor 2010 which includes AutoCAD and AutoCAD Mechanical. Also search Google for download site for Inventor Tooling after you have Inventor Professional installed)

Ok here's a 2007 file. Please disregard the 2010 file in the original post as there are design changes between the two files and it could get confusing. Thanks!!!

4CC 1.25 chamfer v2007.dwg

One thing you my try doing is draw a polyline profile for the top and the bottom of the chamfer, then use the loft command.

Something like this?

Students can download AutoCAD 2010 for free from http://engineersrule.org (or better yet download Inventor 2010 which includes AutoCAD and AutoCAD Mechanical. Also search Google for download site for Inventor Tooling after you have Inventor Professional installed)

JD, i checked the site when i received an email saying it was avail. but I couldnt find it. Ill have to check again this weekend.

Thanks for the responses guys.

Secretagdan - I don't know how to draw the polyline profile for this or use the loft command yet. I'll have to check into those. Thanks for the direction.

JD Mather - Yep. That's exactly what I meant for the 1.25" fixed depth version. Is that based on the file in post #4 or post #1? It looks like the one in the first post, which is a design I still haven't ruled out, but I'm leaning towards the one in #4. How did you do it? How about the 45 degree version?

I did it with a lofted surface and used the slice command.

You have the white line where you want the chamfer to go to. I just used PLINE and drew a single segment that was the same as your collection of lines. You could also join your lines but this was quicker for me.

I then create a line along the bottom edge where you wanted the chamfer to go to, i used PLINE again just because all i had to do was hit ENTER to reuse the last command.

I then create two lines(one on each end) which werent needed in this cause but it connected my two plines together and were used as guides.

type LOFT, it prompts you to select cross sections in order, select cross section 1 then 2 as in my drawing, press enter. The prompts will give you an option for guides, type G then press enter, then select the two guide lines and press enter again and this should create your surface.

type SLICE, the command line will show you a few options after you select your object and press enter, one being Surface so press S then Enter and select the surface and press enter again. It will ask you which side to keep or Both sides.

as a note, depending on your DELOBJ settings the surface may still be there on top of your solid.