Discover how to accurately model a bathroom sink using a CAD program in this detailed guide. The tutorial covers the creation of the bounding box, positioning of the rectangle, inner details, and usage of the stretch command.
Key Insights
- The bathroom sink model starts with creating a bounding box that is one foot eight inches wide and one foot six inches tall, its bottom midpoint located at zero comma one.
- The inner rectangle of the sink shows a two-inch offset from the left, right and top sides, and a four-inch offset from the bottom. This is achieved by offsetting the rectangle and then using the stretch command.
- The stretch command is a powerful tool that moves all the endpoints within a crossing window. Precision and accuracy are important while using this command to avoid selecting unwanted points.
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In this video, we will work on the bathroom sink. Let's go File, New, use the template, and File, Save.
And this will be named bathroom-sink. I'll go to layer properties, new layer, A-Fixed, enter. The color will be 120.
And let's make A-Fixed our current layer, and close layer properties. We can see that the bathroom sink is the same general principle, a rectangle located with the bottom midpoint at 0,1. The rectangle is 1'8" inches wide and one foot six inches tall.
Let's go rectangle, click anywhere on the screen, D for dimensions, 1'8" inches, enter, one foot six inches, enter. I will click on the screen to lock in my quadrant, Zoom Extents, and let's move this rectangle to 0,1. With my running object snaps still on, I can go move, pick my rectangle, enter, and I will move from this midpoint to 0,1, enter.
Zoom Extents, CTRL+S to save. Now that we have our bounding box in place, let's take a look at what our sink is made of. We can see that the rectangle we just drew is the bounding box, and that there is an inner rectangle, as well as a spigot and some handles, and a two-inch drain as well.
When we look at the inner rectangle, we can see that it has a two-inch offset from the left and right sides and from the top side, but a four-inch offset from the bottom. In this case, we are going to offset the rectangle and then use our stretch command. So let's give that a shot.
We know how to do the offset. Let's offset a distance of two, enter. I will pick my rectangle, offset to the inside, and click enter to say that I am done.
Now we need this line to move up a distance of two. We know that we could move the whole rectangle, but we don't want to do that. We want to make the rectangle shorter by stretching that line.
Stretch can be found on the Modify panel, and the important thing to know about Stretch is that it moves all of the endpoints that are in your crossing window. So let's show what I mean. I'm going to go C, enter, to lock in a crossing window, and I will start my crossing window here.
Again, I'm using my crosshairs (or cursor) to make sure that I am above the line and to the right, but that I'm inside of the outer rectangle. Now when I create my crossing window, I'm going to make sure to only cross over the line here and not the outer rectangle. You'll notice that the entire rectangle appears to be selected, but when I hit ENTER and click to set my base point, I am only stretching that bottom portion of the rectangle, and that's because the bottom two endpoints were fully enclosed in my crossing window.
Under that logic, we can hit escape to cancel, and I'll go stretch one more time. C, enter, to lock in crossing. I'll start outside the rectangle this time and move all the way through.
I'll click over here, but notice I'm not going below the outer rectangle. It looks like both rectangles are now selected, but when I hit ENTER to lock it in and choose my base point, again, only those two endpoints were included in my crossing window. Be very careful that you do not select any other endpoints or center points or insertion points.
In this case, only endpoints apply, but please be careful to only choose the endpoints you would like to move using the stretch tool. Let's do it together. We can go stretch, C, enter for crossing.
I will start right here using my crosshairs to align my selection. I will make my crossing window to here and click again. This is a distance and direction move, so I will turn on Ortho, hit ENTER to lock in my selection.
I'll set my base point anywhere on the screen, and I'll move up with Ortho on and type 2, enter. Now we can see with the MEASURE tool, the original 2-inch offset and the additional 2-inch stretch has moved that line a total distance of 4 inches away from our outer rectangle. I'll hit escape, escape, escape, Zoom Extents, and CTRL+S to save.
In the next video, we will continue with the bathroom sink.
