Keep hatch pattern unchanged

[sam_safinia]

I am using dynamic blocks with an option of increasing Width of pipe for different pipe size and inside the pipe DBs I have hatch pattern which is working for defined sizes. The issue is when I want any size which is not in the DB list, I need to Scale my block which it will scale my hatch pattern consequently as it is associative. Is there any lisp command to keep the hatch patterns the same throughout my drawing? 

For example my DB Have size of 150, 200, 250mm and hatch pattern does not change when i switch between theses sizes. But when I scale 200mm up to make 225mm it scale up hatch patterns. I want to see hatch pattern unchanged!

Thanks

[dbroad]

If you scale a block, this will unavoidably affect the hatch spacing.  Since you have a dynamic block, consider adding a scale action within the block that works on the hatch boundary but not the hatch itself.  This will scale your block without changing the hatch spacing.