Porady 3D

2D, 3D, BIM - 2: 3D Drawing from engineering plans

2D, 3D, BIM - 2 3D Drawing from engineering plans

3D Drawing from Engineering Plans

Last week we looked at the easiest way to get started in 3D. If you followed along, you'll now have a basic layout. This week we will be creating a window from a low-quality 2D engineering drawing, starting in 3D. There are easier ways of creating windows in BricsCAD BIM. We will talk about them later in this series.

Commands covered this week:

You will need the same settings and workspace as last week.

Making the frame

I've been given the plans for the windows. Unfortunately, it seems that the plans have been extremely poorly photocopied. This means tracing isn't an option but that shouldn't be a problem with BricsCAD.

2D, 3D, BIM - 2 3D Drawing from engineering plans- window2D

We've all seen rough markup like this before. You'll be amazed how quickly you can reproduce this in 3D.

I began by using the box tool, then drew along the surface of the box to mark out my window panes and extruded.

To do this:

  1. Start by accessing the BOX tool (found in the Solids section of the Model tab on the Ribbon). To keep things tidy, my insertion was 0, 0, 0.
  2. Using the DYN boxes enter the width and length dimensions as specified on the drawing above. So far so easy.
  3. Then set the height (z-axis) in the same way.
  4. After that, use the OFFSET command to offset the edges of the box and draw the dimensions (as you normally would in 2D, but on the surface of the box, not the 0 plane of the z-axis).
    Tip: If you have problems drawing the the surface of the box check that DUCS is turned on.2D, 3D, BIM - 2 3D Drawing from engineering plans- offsetThis gave me the following results:
    2D, 3D, BIM - 2 3D Drawing from engineering plans- window wire 2-1024x527
  5. Use the Properties Panel or the View tab in the Ribbon to change the View Style to Shaded.
  6. To create the recess for the window, simply hover over the polygon until the boundary turns green. Select Extrude from the Quad and drag through.
    Note: Check you selection settings, see last week.
    2D, 3D, BIM - 2 3D Drawing from engineering plans- extrtude
  7. Then repeated the action to pull out the frame of the window's "door" slightly.
    2D, 3D, BIM - 2 3D Drawing from engineering plans- windowframe-1024x583

The handle

To make the handle, I started with the box and cylinder primitive shapes, then extruded the spline.

To do this:

  1. Draw a box.
  2. Next, draw a cylinder in the center of the top surface of the rectangular box.
    Input the measurements according to the 2D plans.
  3. Then created the handle shape with a Spline.
  4. Finally, extruded the shape.2D, 3D, BIM - 2 3D Drawing from engineering plans- hadle
    Tip: The TIPS interface allows you to change how the shape is extruded hit Ctrl to change between the options.tipsThis resulted in:
    2D, 3D, BIM - 2 3D Drawing from engineering plans- handel-1024x558

Fillets

It looks OK, but it was missing the fillets. I added these to create a more polished finish. In 3D, chamfers and fillets work almost exactly like they do in 2D.

To do this:

  1. First access the DMFILLET command, found in the Direct Modeling section of the Modeling tab on the Ribbon.
  2. Select the edges then enter the radius value.
    Tip: Use 2D Wireframe, View Mode, as it makes it easier to see every edge of a solid.

2D, 3D, BIM - 2 3D Drawing from engineering plans- handel too big

Now we've made it in 3D we can see that there is a bit of a problem: The handle is too big for the base. No sweat.

I fixed this by selecting the solid and using SCALE. I scaled it down to 0.7. You can see it now fits perfectly.

2D, 3D, BIM - 2 3D Drawing from engineering plans- handel resized-1024x451

I used MANIPULATE (but you can also use MOVE) to move the completed handle into its position on the frame.

Details and tweaking

2D, 3D, BIM - 2 3D Drawing from engineering plans- window-1024x384

I made the window panes using Extrude and selected the create mode. This prevented the solids fusing automatically.

To differentiate the glass from the frame I used the color drop-down menu in the Properties panel to change the color from ByLayer to blue.

Finally, I used 3DROTATE -- along the x-axis -- 90°. 3D Rotate works exactly the same as 2D rotate, apart from the fact that you can rotate around a given axis.

Variations

At this stage I was pretty happy with my model, but I wanted to be able to use it in a range of sizes. To do this without remodeling again I used Parametrize.

To do this:

  1. Enter PARAMETRIZE.

  2. Select the object(s) to Prarametrize.

  3. Open up the Mechanical Browser, you'll see all your constraints!

  4. Edit them in the Properties panel.

    2D, 3D, BIM - 2 3D Drawing from engineering plans- parameters-1

    Animating the Parametric constraints on the window to create a range of different sizes.

    Tip: If you're not sure what parameter controls what, you can animate them. Just right-click on the parameter and hit animate. You can read more about constraints and parameters.

  5. If an object is over constrained it will be displayed in the Mechanical Browser colored red.

  6. Fix constraints will prevent you from rotating an object.

Don't have BricsCAD yet?

Easy to try, easy to buy, easy to own. That's BricsCAD. Try all of our products, for free for 30 days at www.bricsys.com. Freedom of choice, plus perpetual (permanent) product licenses that work with all languages, in all places. You'll love what we've built for you with BricsCAD.

Keep Reading

  1. Moving from 2D to 3D CAD
  2. 3D Drawing from engineering plans
  3. Drawing everything but the kitchen sink
  4. More Advanced Modeling
  5. The Shower
  6. The Sink
  7. The Toilet
  8. Walls and Floors
  9. The Roof
  10. Windows and Doors
  11. Create your own components
  12. Rubber Duck
  13. Laser-cut puzzle project

Note: This series is intended as a guide to demonstrate how to use different aspects of 3D modeling tools. It may not always demonstrate the fastest way of getting the result. Keep coming back to see if we cover a faster technique at a later date.

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