How to optimize your Auto. CAD DWG drawing files. If you’ve been following the CAD Setter Out for a while, you will know that I recommend keeping your geometry organised as you go along. Using Polylines, Groups, Blocks, Layers and Xref’s effectively will help you to work quickly with your drawings files. Working this way will also go some way to preventing your Auto. CAD DWG files becoming bloated or corrupt. If you’ve been working on a file for some time, and you’ve noticed Auto. CAD slowing down, then it may be worth doing a bit of a cleanup to help slim that drawing file down. This could also be necessary when dealing with files from clients, suppliers or contractors. I’ve listed a few tools and tips below that could help you put a bit of zip back into a sluggish DWG.(If you use Architectural Desktop, check out the extra tip from Mike in the comments)Back up before you mess up! As always, save a copy of your production DWG files before you mess about with them : ) This is particularly important if you are working with a third party drawing. Go easy on explodes. If you receive a drawing from a third party, don’t be tempted to explode all their blocks. This can be a really bad idea. If there is more than one copy of each block in the drawing then the blocks will actually be saving memory. If you suspect a block is causing a problem, copy it out into a blank file and exploded it. Then follow the advice below on the new file. Carefully rebuild the block and then replace or re- define the block in the original drawing. Be really, really careful that you don’t explode a dynamic block. The dynamic properties of the block will not be able to resolve themselves and this may corrupt your DWG. Delete unused geometry. If you need to make a change to your drawing, It can be tempting to copy the old detail to one side . This is all additional data that Auto. CAD needs to manage. If you end up with a lot of unnecessary, old or out- dated geometry, create an archive copy of the Auto. CAD DWG file and delete your intermediate work from your working DWG file. Note: A quick way to delete all unnecessary objects from your drawing file is to hit CTRL+A (select all), then hold down the Shift key whilst de- selecting what you want to keep. This could include empty text strings, points and blocks that contain only invisible attributes. To pick up points, type . I am using Autocad LT 2008 that running on Windows Vista. I found tat problem occur cause SCALELISTEDIT problem. Problem Try to edit a scale on the Scale List and it is grayed out and cannot be edited Solution A scale on the Scale List cannot be. IMAGINiT Technologies Support Blog Solution Center Available M-F. Good Housekeeping prevents your AutoCAD DWG drawing files getting bloated and slow. Find out how to put zip into your DWGs! You can now delete what you don’t need. To find empty text strings, type . This will replace all the text strings in your drawing with bounding boxes. You can now hunt down and delete any empty text boxes. Set qtextmode back to 0 when you are done to put your text back to normal. Note: From 2. 01. Auto. CAD has the option to purge empty text strings in the . You can now select and delete any previously invisible blocks that you don’t need. To find 3. D objects with invisible faces, type . This will reveal the shapes control polygon, allowing you to select and delete it. It is possible to create an Auto. CAD group with nothing in it. This system variable toggles wipeout frames on and off. Delete unused layers. Did you know that Auto. CAD won’t let you delete a layer that is in use? Open the Layer manager, select every Layer you don’t need and hit . You can’t accidently delete a layer you need. I thought I would make a quick post about the Perpetual Annotation Scale List bug in AutoCAD 2008. The secret is in the SCALELISTEDIT command. I just found this solution to a similar problem in AutoCAD 2011. I posted previously about what specs for a new AutoCAD workstation and went and. He fixed it and problem went away. Civil 3D Tutorials on CADDigest.com. Exclusionary Catchments – AutoCAD Civil 3D 2017. Visit ground data panel, click catchments drop-down to create catchment from surface, specify discharge point in drawing before. This will get rid of a whole load of extra data that Auto. CAD doesn’t need to manage. Auto. CAD won’t let you delete the active layer, so check which layer is active before you start. Auto. CAD won’t let you delete a layer that is frozen in a viewport – even if there are no objects on that layer, so check through each viewport if you have problem layers. Tip: Use . The original layers are purged from the drawing. Tip: Use the . Be careful with this tool – there’s no going back! Note: The system variable . If you have lots of layers in your drawings, setting this to ? The quickest way to clean out layer filters is with the . This pops up a little dialog which allows you to quickly delete unused layer filters from your Auto. CAD DWG file. Note: The command is . The Filter command is like an Uber Quick select tool. Check your styles. Auto. CAD won’t let you purge text, dimension or multi- leader styles while they are in use – even if you are not using the style in the drawing. Check which styles are current before you purge. Purge. Auto. CAD’s PURGE command will allow you to clear out data from your Auto. CAD file’s database that isn’t part of the drawing. This is the same for Annotation styles. Remember to check the . Auto. CAD 2. 01. 0 has the handy option to clear out empty text and zero length lines. Auto. CAD 2. 01. 2 includes the option to purge empty groups. Application menu > Drawing Utilities Panel > Purge. Command entry: purge. Save your file after you’ve purged it to re- write the database before you audit. You may need to purge and audit a couple of times to completely clean up your DWG. I recommend that you purge your file production files frequently as part of your housekeeping routine. Tip: You can use the PURGE command as a detective tool to help with problem files. If you receive files that could have been created with one of the Auto. CAD verticals, you can claw back some memory space by using this command. Type . Auto. CAD will prompt you to list the names you want to purge. You should notice that it is substantially reduced. Audit. Auto. CAD’s . Save your file before you run the purge command again. You may need to run the Purge – save and Audit – save commands a few times to completely optimize your file. Recover. The recover command is a little like the . To use the recover command, go to the application menu (The Big Red A) and choose, Drawing utilities > Recover. You will be prompted to pick a file. Note: This is one of the few things in you can do in Auto. CAD without a drawing open already. The file will be Audited, and then opened in Auto. CAD. Wblock. If nothing else works, try . The wblock command will only take what it needs to support what you have chosen to export from your drawing. This can leave corrupted elements behind. Other issues that could be slowing your DWG down. If you are running antivirus software, make sure that common Auto. CAD file types such as DWG, DWS, DWT, DXF, BAK, SV$ are excluded. You can see a full list of Auto. CAD file extensions here: Hyper. Pics: File Extensions Related to Auto. CADThe Scale List Bug. Auto. CAD 2. 00. 8 included a bug which copied all annotation scales from x- referenced drawings into the host drawings, even if they already existed. This creates a massive number of unrequired scales in your drawing. If you are working with someone who is using Auto. CAD 2. 00. 8, you might still come across this problem. More modern releases of Auto. CAD have an automatic detection system for this problem. If you open a problem file, Auto. CAD will prompt you to see if you want to re- set the scale list. I recommend you choose ? Auto. Saves are incremental (only what’s changed will be saved). Setting isavepercent to 0, will result in a longer save time, but a better organised fie (all saves will be full). Setting isavepercent to 1. I hope that you found this article useful and that you’ve managed to breath some new life into your crusty old DWG’s! Read this post for more ways to clean up your Auto. CAD geometry for output to CNC/CAM. Perpetual Annotation Scale List - The CAD Geek. In just the last few days alone I have received 5 support requests from my users about this issue. Seeing that I haven? I thought I would make a quick post about the Perpetual Annotation Scale List bug in Auto. CAD 2. 00. 8. This issue is most often noticed when users click on the “Annotation Scale” list from the drawing status bar. Generally this list simply contains a list of commonly used drawing scales. On the other hand; if you’re not careful this list can soon be plagued with “. What? s happening here is both your host drawing and your reference drawing contain these annotation scales. Suddenly once you attach a couple external references, your Annotation Scale List is virtually unusable. The screen shot above shows one example of this. I write this post with both good and bad news. The good news is that Auto. CAD 2. 00. 8 Service Pack 1 is said to address the issue. In fact the release notes for the service pack specifically say ? Custom scales which exist in the nested xrefs are no longer duplicated in the host drawing? Thus the good news is pretty obvious in the way this issue is no longer an issue upon installing the service pack. As I understand things, the service pack will fix the Annotation Scaling Issue moving forward. In other words it will prevent it from happening again, but will not go back and fix the drawings it has messed up. Given my current CAD setup includes Map 3. D / LDT / Civil 3. D, and a service pack addressing the annotation scale issue hasn? I have not yet been able to verify that claim for myself. Auto. CAD 2. 00. 8 users can download Auto. CAD 2. 00. 8 Service Pack 1 from here. Since the straight Auto. CAD service pack has been out for a little while now, you can probably expect the vertical service packs to follow shortly. But even still the better question remains ? The secret is in the SCALELISTEDIT command. Now be warned, simply typing SCALELISTEDIT at the command line will invoke the graphical version of the command. This version of the command seems to work about 5. What seems to happen is the buffer for that dialog is exceeded and throws an error if your drawing has too many Annotation Scales. For that reason I have generally opted for a method that, to date at least, has worked 1. Simply prefix the command with a hyphen to invoke the command- line version of the command. The sequence of the command will look something like this: Command: - SCALELISTEDITEnter option ? For that reason we actually opted to write a quick LISP routine and embed it onto our company Tool Palettes. The is simple enough, and looks something like this: (Command “- SCALELISTEDIT” “R” “Y” “E”).
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