Beta 1 is avalible from here:
http://www.cemetech.net/programs/index.php?mode=file&path=/83plus/basic/graphics/Design3D4_Beta1.zip

Here is the changes I have done from Design 3D v3.5 to v4.0:

*A new rendering system, see the earlier Design 3D topic.
+A file converter - Converts a file between v3.2- , v3.5 and v4.0+ . Can also optimize v4.0 files (removes multipile lines and points). Comes with a kickstart program, but can also be run from inside Design 3D.
+Different views also avalible in view mode, not just editor mode.
+Rotation preferances, you can now do rotation of custom quality, but note that higher quality takes longer time to preform.
*New program structure. Seperate program that calls each other by a controller program (Working on this, I currently have a basic program that emulates the ASM controller program I haven't made yet.)
+Possibility to toggle points/lines to render/not-render in editor mode.
+A brand new clipboard in table mode, used for storing single points. The clipboard from 3.5- is still used to store lines.
+Ability to change the coordinates of a point in editor mode.

I'll list more when I remember the other changes/additions I did.

Very nice. I'd be interested in helping write a solid-polygon rendering engine, perhaps, based on some of my earlier work.

I wasn't actually thinking of a Polygon-based engine yet. It is still Line-based, mostly because of bacward compability. But what do you actually mean with "solid-polygon"?

But I would need some help with the ASM controll program. I'll upload a figure about how it works. together with a beta version.

I think he means "solid" as opposed to "wire-frame".

That's exactly what I meant, hidden-line or solid rendering as opposed to a wireframe view where all lines are visible regardless of whether there are other object in front.

I have a question hav you figured out a way to make curves? If you manage to do this I may have to steal some of your code for another project I've been thinking about doing that requires curves in 3D space.

Your best bet would probably be to break the curves down into a series of straight lines.

Well teh plan was to makea g-code interpreter (g-code is the programing language used in CNC machines) the program was soposed to make a drawing of the tool path and allow of stepping through the of code. the main thing keeping em from starting is a way to generate the curves especially in a 3D space. If someone has a good formula for calculatoing the circle that would be helpful.