As far my machine region, I'm going to choose the bottom of that pocket right there, and if you go over to chains you can see it's just that one chain. Let's go ahead and just choose the very first one here, dynamic mill. So these are pretty much different variations of the same dynamic milling tool path. Okay, so head up here to 2D HighSpeed tool paths, and you can see I've got this dynamic mill, I've got this dynamic contour, I've got area, peel, and blend. Now this is generally a roughing operation, we just want to get that material out of there, and that is where dynamic milling really shines.
Now right over here, you can see I've taken the same part we've been working with and I've put a big pocket in the center of that.
So let's go ahead and jump into MasterCAM and I'll show you how it works. That makes it so you can go full speed ahead into the corner and not even have worry about it, because that allows you to maximize your tool path feed rate and not have to worry about breaking that tool when you go into a corner because the software is calculating how to not over-engage the tool. So as you get into a corner the machine backs off and instead of going straight into the corner, it may do a few loops in the corner, so you're not engaging any more than you defined in your tool path.
So that's what the adaptive contouring, the dynamic milling, some of these adaptive tool paths, what they do is make the cutter engage the same amount of material no matter where it is in your tool path. So, we get chatter, we might even break the tool, or it really depends on how fast you're going with that tool and that's a problem. So- and that can really cause a lot of trouble. And all of a sudden, now that engagement goes up to over half of the tool, so it goes up by 50% or 100%. Now as you get into the corner of that pocket, bad things start happening because you were about a quarter of the tool engagement. So traditionally if you had a regular end mill and you're machining on a pocket, as your going down a straight edge of the pocket, you're engaging maybe a quarter of the end mill. They're what's called a constant engagement tool path. Some companies call it adaptive contouring, but all these type of tool paths are pretty much the same. Now, different companies use different names for the same thing. But the companies who are developing this style of tool path have been doing a lot of work over the past few years. Now dynamic milling has not been around for that long, maybe like 10 years.
In this video, we're going to be talking about dynamic milling.
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