in this video we'll identify how to hold a complex part, after completing this step, you'll be able to use inspect and create a comment. Infusion 360, we want to get started with the dataset coupler for CNC mill. This design has a generic vice, as well as three different couplers, notice that as we're looking at these couplers, they're placed in soft jaws on the vice. We're going to begin by isolating couple or two, by right clicking and selecting isolated. We're going to be looking at couple or two, because we're creating a program to machine three of these parts, and we want to replicate everything that we do. When we look at a part like this, we need to identify how we're going to hold it, often times that means that we need to determine, how we're getting this part, is it starting from raw stock? Are we getting a cast or forged part, or maybe in this case maybe it's a metal manufactured part and we need to do some finished machining. In this case, we're going to assume that we're starting with raw stock and we need to machine everything. So my first step is generally to go to select, and I want to take a look at the selection tools and select by boundary. I'm going to select my part and I'm going to take a look at the size of stock, noting that it's one point five four eight by point eight six six. So if I'm looking at standard available stock sizes, I'm likely going to go to a one and three quarter inch by one and three quarter inch by one inch stock. And when I take a look at this, you'll note that what we see on the screen, is enough material around the outside of the part to machine everything we need. When we think about this, however, we need to determine how much stock is actually above and below the part. So we're going to say, okay, and we're going to take a look at the overall height of the part. We're going to inspect the top height all the way to the bottom, and we can see that it's point eight six six or 22 millimeters. We're going to leave a few comments, and we're going to do this by going to the comments section at the bottom of the browser. I'm going to capture an image, and I'm going to say height of part zero point eight six six inches. I'm also going to add stock size and this is going to be one point seven five by one point seven five by one inch. When we do this, we need to consider how much stock is going to be above and below the part. When we do this, we're taking that overall stock of one inch and we're subtracting point eight six six, of our part. When we do that, we get zero point one three four, and that's going to be divided by two, which ends up giving us point zero six seven on top and bottom of part. This is going to be important because when we flip it over, we need to know how much stock is on the top of the part, and capturing these comments in the design is going to be helpful. Some other things we might want to consider is going to be be what happens on the inside board of this part. Remember earlier on when we saw this part, there was originally a spline set in here, and we removed it and we added comments in that design. But this design doesn't have those comments, so we're going to capture the image and we're going to add those comments. We're going to note that the brooch that's going to be used for the splints is going to be ten millimeter OD, by eight point five millimeter I D. And 12 splints, so again, capturing that information helps downstream, so we can remember what we're doing here, we can remember all the information that's needed. Other than that this file is ready to go, and we can right click and a nice isolate the coupler, putting it back inside of the soft jaw. If we want to take a look at how these are being held, we can always hide the coupler and we can take a look at the geometry and the soft jaw on how it's going to be held. This is going to give us a firm base, once we flip the part over, and another thing that we want to take a look at, is going to be the amount of distance between the top of the vice and the part itself. It looks like point one four two inches, so this is going to give us a good idea of how much material is sticking above the part. When it's machined from the other side, we're going to machine the entire outside bore and all the features on the bottom as they're critical to be held in the soft Jaw. But when we flip it over, we're only going to need to take care of the champ for, so we're going to bring back the other coupler. I'm going to go back to a home view and make sure that I save this design before moving on to the next step.