Re: [CAD_CAM_EDM_DRO] CAD2lathe software

I too was going to suggest maybe you have to export as R12 or ???.
Again not cad2lathe but I had another issue with DevCad which might be
similar to yours. Now I still don't understand exactly what the
problem is. I was just making a simple Circle of which I wanted to cut
with my CNC Hotwire in foam. The easiest method in a CAD program is
the the Radius circle where you simply left click hold and then drag to
what ever radius or diameter you want and then let go. Same for
rectangles or squares. Well, there is also for circles a 3 point arc
to complete your circle method, keep this in mind.

So there is my radius circle, it exported just fine as R12 ( which the
foamcutting program needs ). It also imported just fine, there is my
circle now showing up in the Foamcutting software but no go. There are
some tricks in the Foamcutting software to "align" points, change the
direction and or the start point and such but nothing was working, it
would not cut.

Off to the Foamcutting Programmer, here is my file and it won't
cut..... He came back a few days later and says your circle is an
"Object", it has no beginning nor end ???? Use the 3 point Arc method
to make your circles. This even though in the Foamware I could see
Points, there was a zero starting point and a higher point number right
next to it.

I don't understand the difference but using 3 point Arc solved the
problem. CAD and I don't get along very well for these reasons. I
make what I think are rather simple things and there can be some issues
that are not very clear, at least not for me.

I just bring this up as I don't know HOW you made your drawing. Same
thing for rectangles, you have to do individual lines and then join
them. Or explode to polylines and then join or close, I never know
what I am supposed to do, I just keep banging away until it works or
beats me.

Dan

On 8/9/2011 11:16 AM, Brian Worth wrote:
>
> Hi Jack, instead of saving your polyline as a dxf, use the "export"
> command. Then check the schema that it is exporting in, R11, R12 or
> whatever, and use "edit schemes" to see that polylines are exported as
> polylines, and not the default "lines". Hope this helps, shout if you
> need more help.
>
> Regards, Brian
>
> ________________________________
> From: Jack <freshwatermodels@...
> <mailto:freshwatermodels%40yahoo.com>>
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
> Sent: Tuesday, 9 August 2011, 17:35
> Subject: [CAD_CAM_EDM_DRO] CAD2lathe software
>
>
>
> I have cad2lathe which looked pretty crude but for what I do I thought
> it would work. I design in Rhino and can save a dxf file for
> cad2lathe. Sadly cad2lathe seems to see my polylines as line segments.
> Any ideas of what is going wrong and how to solve the problem? I
> really don't want to invest big bucks for lathe cam and cad2lathe would
> suit my use if I can get it to work.
>
> Any insight and/or solutions appreciated!
>
> Jack
>
> __.
>
> [Non-text portions of this message have been removed]
>
>



[Non-text portions of this message have been removed]