Generally, you can't simply use ctrl+c, ctrl+v to copy the higher version of the CAD to the lower version of the CAD.
If you want to copy, insert in the lower version of the CAD-block-browse-select CAD graphics file to insert, it will prompt to specify the insertion point.
There are many reasons why you can’t copy and paste, or the file is protected, or copy-protection parameters are set, or the version of cad is incompatible, or the internal error of the file, etc.; there are many ways to solve the problem, the following are Summary method:
1. Save as r12 version of dxf format (other versions of dxf do not work), then reopen the saved dxf file and it will be ok; (I tried this, but many other methods did not work, but this worked).
2. Make the copied object into an external block ("w" command), and then open another cad file to insert the block;
3. Explode the copied object ("x" command), not once, but several times;
4. In the new cad file, insert the block, then select the cad file to be copied (the entire insert), and finally explode; (additionally, when inserting the block, you must tick before the decomposition, otherwise Some text will be lost, it seems this method is the easiest).
5. Use the audit command first to repair all errors in the graphics file, and then use the purge command to deal with invalid or unused objects in the graphics. It is best to run the audit command to repair it again, and the general problem can be solved. Paste the problem.
6. Select the right button of the graphics you want, there is a copy with base point under the copy, just use this command to copy and paste.
In this case, you usually use the cracked version of CAD. Restart the machine to see. If it doesn't work, there is another trick, which is to make a block and copy the block, which usually works.
Make a block and copy the block. Try this method!
You can click "Insert"-"Block"-"Browse" in the menu bar, select the image file you want to copy, and insert it!
