hey Guys,

I am still trying and testing lazycam/mach3 for my project and about to buy it. Last night I came across a problem, although in this case it is not important, I need to know what the problem is, espcially since I am going to buy the licences for the 2 programs.

I have drawn a model airplane in 3D:
see this topic for some more photo's (text in dutch):
http://www.modelbouwforum.nl/forums/tekeningen/79132-verslag-bouwtekening-zaunkonig-maken-met-rhinoceros-2.html#post1190923




In lazycam the inner "circle" is shown as a octagon.



I wonder why this is. The bulkhead and circle are made as follow in Rhinoceros V4:
-Square, made into a solid of 3mm.
-circle, perpendicular of the square, made into a tube
-"boolean difference" cut out the circle in the square.
-The bulkhead was projected on the Top cplane and little lines where cut out, to let the cut out wood still be stuck in the original piece of wood.
-this cplane was saved as dxf and than opend in lazycam.

-when I just make a circle in Rhinoceros saves that as dxf and opens it in lazycam, it is a perfect circle...... why can this be?, is the bulkhead to complicated or because it is projected, but why is it still a circle in the original drawing in Rhinoceros?
questions.... questions ........  
Attached the dxf file and also the lazycam file.

Another question not related is about the strange way lazycams wants to cut the bulkheads. Since I cut the lines to have the piece of wood still attached to the big piece of wood, it is obviously not a connected line anymore. But why does lazycam cuts out 1 connected line , than starts on the other side of the bulkhead cuts this line, and than start again on the other side of the bulkhead where it previously stopped. Although this obviously will work, it will take much more time, it would be more practicall of the z-ax lift up, and the "square" would still be cut as a square, just the z-ax would have to go up and down.
I did use the "clean" tool which made it all a little bit better, but still a strange rooting to cut it out.

Hope someones has the answer,

Thanks,
Cor

Rhino is saving the circle as a spline. You need to play around with the .dxf options in Rhino to try to get the circle into a different type of entity.

Ah... indeed, I now saved it in "R12 lines and arcs" and now it is a circle :-)

What is the better thing to use with lazycam or can someone tell me the difference between these options:
-default (which I used so far)
-2004 lines
-2004 natural
-2004 polylines
-R12 lines and arcs
-R12 natural


I see that I can also make my own scheme, for lines, arcs, polylines etc....   Is it wise to make an won scheme to use with lazycam?

Thanks a lot ,
Cor

Don't have much current Rhino experience, but either of the R12's would probably work best. Do a little trial and error to see what the differences are, and which works best for you.

thanks for the help....

still much to learn.

Cor