TReischl wrote:Load the file in a text editor, notepad works fine, All of your X's need to be changed to Z's. Mass edit.
Fivetide wrote:Hi yes I need to explain it a bit better sorry : imaging you have a 3d carving of a face on a board, I just want to carve one of the vectors along the Y or X + the 3d heights on the Z . In other words I want to draw a single vector of various heights and curves etc (the Z), and project it along the X or Y. A single vector of the 3d model.
dealguy11 wrote:It's pretty simple, though you'll have an issue at the vertical areas because when it gets to these places it will immediately plunge the bit into the material, possibly breaking the bit.
highpockets wrote:Steven, give this one a try....
I circled the drive rail in RED it's only .005" high.
dealguy11 wrote:This has been an interesting discussion. As with everything in Aspire, there are generally at least 3 ways to accomplish a task. Choose the method you like!
I do think the approach using a 2-rail sweep is how I would go, for the following reasons:
1. I don't like to mess around with working post-processors. Not that it can't be done, and I know of cases where flipping axes for rotary work makes a lot of sense, but I don't think it's needed here.
2. You can get crisper details cutting down from the top rather than coming in from the side, because you can generally use smaller bits (as long as you don't bury them). If you do flat portions of the profile with an end mill rather than a ball-nose cutter, then you can get nice sharp inside corners in those areas.
3. It doesn't require Y movement, which was one of the OP's goals.
But hey, whatever works.
Some other things to consider.
I'm 100% in agreement with TReischl that you should set z0 to the center of the turning blank. Yes this does look like the best way to set the z0
You need to turn the blank round before you begin. I've always found a 1.25" bottom cutting bit like the Magnate 2704 is a good choice for that operation. If you use my method, make sure the profile path is on the vector, not inside or outside.
If you have any option for y movement, consider offsetting the vector to the side for the turning round operation so that the center of the bit is not directly on top of the part...if the part is turning into the bit, you will get a smoother cut but this only works for a flat bit. Good Point thanks
Do hog out as much material as possible before you do the final profile. I need to experiment with clearance tool paths or pocketing before I do some actual material cutting
This operation is actually kind of hard on a rotating bit because the feed rates are inflated by the material moving past the bit...that's why the spindle speed needs to be high. The lathe only has 3 manual belt speeds unfortunately so the feed rates will have to be worked out as buy chewing through a few experimental blanks lol and thanks yes another good point.
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