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Exchanging one block symbol for another

From: AutoCAD: Tips, Tricks, and Industry Secrets

Video: Exchanging one block symbol for another

Blocks are a great tool to use when you have geometry that's repeated throughout a drawing. In an architectural design, we might use blocks to represent doors, furniture, kitchen appliances, or plumbing fixtures. What you do if you have inserted the block multiple times in a drawing and then you decide you'd rather use a completely different symbol? In this lesson we're going to learn how to exchange one block for another. On my screen I have a drawing of a proposed high school gymnasium. Let's zoom in on the restroom are, and as you can see, I have inserted several basins into this drawing.

Exchanging one block symbol for another

Blocks are a great tool to use when you have geometry that's repeated throughout a drawing. In an architectural design, we might use blocks to represent doors, furniture, kitchen appliances, or plumbing fixtures. What you do if you have inserted the block multiple times in a drawing and then you decide you'd rather use a completely different symbol? In this lesson we're going to learn how to exchange one block for another. On my screen I have a drawing of a proposed high school gymnasium. Let's zoom in on the restroom are, and as you can see, I have inserted several basins into this drawing.

Now each of these basins is a block and if I select one of these you can see that this is a generic block called basin-counter. When I inserted these, I didn't have a specific basin in mind. I pretty much just used this block as a placeholder to represent where I would like to install each basin. Well, I've now decided on the fixtures that I would like to use and I was actually able to download the geometry for that basin from the manufacturer's website. I've inserted one of those blocks over here. If I select this, we can see that this block is named after the basin's model number.

To exchange my existing blocks with this new symbol, I'm going to start by inserting one of my existing blocks. I will select basin-counter and I will click OK and I will place this off to the side. I will then select both blocks and we will do a little black comparison. Take a look at the insertion point on the original block. Notice it is centered on the symbol, whereas the insertion point on the new block is centered on the faucet. Before I swap these symbols, I need to make sure that the new block has the same insertion point as the original.

To do that, I will double-click on the block and then I will click OK to bring up the Block Editor. Then in the Block Authoring palettes, I will make sure that the Parameters tab is current. I will select Base Point and I will place this to the center of the symbol. I will then save the block and I will click the X to close the Editor. Now that these have a common base point, I don't have to worry about my existing symbols shifting at all when they get replaced. To replace the blocks, I'm going to go to the Express Tools tab and in the Blocks panel, I will select Replace Block.

Now which block do I want to replace? Well, I can select its name from the list, or even easier I can click this Pick button and I can select one of the blocks in the drawing. Next, which block is going to serve as the replacement? I will click the Pick button and I will select this block. Finally, since one of these blocks is going to be removed, AutoCAD wants to know if I'd like to purge that block when I am finished. I am going to press Enter to accept yes. And as you can see, AutoCAD has exchanged all of my basin placeholders with the actual basin I'd like to use for this project.

Most times when we think of block editing, we think about redefining a block's geometry. As you can see, it's also possible to replace the entire symbol with another block using the Replace Block tool.

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This video is part of

Image for AutoCAD: Tips, Tricks, and Industry Secrets
AutoCAD: Tips, Tricks, and Industry Secrets

66 video lessons · 8210 viewers

Jeff Bartels
Author

 
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  1. 1m 28s
    1. Welcome
      53s
    2. Using the exercise files
      35s
  2. 47m 11s
    1. Adding relevant data to Quick Properties and tooltips
      5m 38s
    2. Creating custom ribbon tabs and panels
      8m 55s
    3. Creating macro-enabled tools
      10m 29s
    4. Increasing speed with command aliases
      4m 44s
    5. Finding commands and system variables using Auto Complete
      2m 35s
    6. Optimizing the size of palettes
      3m 17s
    7. Accessing drawings using Favorites
      2m 25s
    8. Controlling notification bubbles
      2m 24s
    9. Restoring hidden messages
      3m 53s
    10. Following a blog from within AutoCAD
      2m 51s
  3. 1h 0m
    1. Disabling mode settings on the fly
      3m 28s
    2. Finding hatch boundaries in busy drawings
      3m 32s
    3. Generating boundaries from difficult shapes
      2m 20s
    4. Calculating the overall length of multiple entities
      6m 16s
    5. Calculating the area of multiple shapes
      4m 42s
    6. Flattening geometry to a single elevation
      4m 0s
    7. Trimming all entities to one side of an object
      2m 42s
    8. Eliminating duplicated geometry
      5m 10s
    9. Creating true offsets
      3m 44s
    10. Finding errors when joining multiple entities
      6m 48s
    11. Moving and copying entities using Windows shortcuts
      2m 24s
    12. Solving expressions using the command prompt calculator
      5m 1s
    13. Using the Calculator palette
      10m 25s
  4. 21m 17s
    1. Bringing all text objects to the front
      1m 20s
    2. Underlining single-line text
      1m 21s
    3. Managing numbered and lettered lists
      3m 36s
    4. Creating superscript and subscript text
      3m 18s
    5. Removing formatting from MTEXT
      3m 26s
    6. Using fields to identify who revised a drawing
      3m 10s
    7. Squeezing text into tight spaces
      3m 5s
    8. Hiding extra annotative scales
      2m 1s
  5. 16m 55s
    1. Creating "one-click" dimensions
      1m 52s
    2. Dimensioning angles greater than 180 degrees
      1m 40s
    3. Creating dynamic dimension breaks
      2m 20s
    4. Making linear dimensions act like aligned dimensions
      2m 44s
    5. Finding dimensions with false values
      1m 38s
    6. Creating parent/child dimension styles
      4m 45s
    7. Making dimensions easier to read
      1m 56s
  6. 14m 40s
    1. Making global edits to attribute data
      4m 1s
    2. Clipping references using curved geometry
      2m 21s
    3. Exchanging one block symbol for another
      3m 3s
    4. Using drag-and-drop to insert content
      3m 17s
    5. Creating a block library in two clicks
      1m 58s
  7. 10m 42s
    1. Making global changes to layer names
      3m 19s
    2. Converting all object properties to BYLAYER
      1m 43s
    3. Navigating layer lists using the keyboard
      2m 5s
    4. Producing a hard copy of the layer settings
      1m 34s
    5. Removing stubborn layers
      2m 1s
  8. 25m 1s
    1. Accessing viewports within viewports
      3m 21s
    2. Creating viewports with islands
      6m 5s
    3. Creating legends using the Change Space tool
      3m 55s
    4. Rotating viewport content to match layout
      4m 55s
    5. Importing layouts from template files
      2m 3s
    6. Visualizing multiple design alternates
      4m 42s
  9. 30m 18s
    1. Consolidating backup files into a single folder
      2m 48s
    2. Launching applications from within AutoCAD
      3m 53s
    3. Creating custom linetypes
      5m 9s
    4. Incorporating symbols into custom linetypes
      2m 48s
    5. Salvaging data from a corrupt drawing
      3m 57s
    6. Applying hyperlinks to drawing objects
      3m 34s
    7. Converting drawings from name-based to color-based plot styles
      2m 0s
    8. Identifying the owner of a drawing
      1m 18s
    9. Incorporating drawings into PowerPoint presentations
      4m 51s
  10. 31s
    1. Goodbye
      31s

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