How to Create a .PAT file for custom hatches?

[Anonymous]

Hi, I am trying to create a custom hatch. I made the hatch in a autocad drawing, made it into a block, and saved it as 6x18subwaytile.PAT

It is not showing up as a .PAT file in my files. I also am not sure how to add this into AutoCAD to use. 

[Edwin.Rense]

As you can see (from your attachment), your file extention is still dwg.

It should be a regular .pat

A .Pat file contains The placement of the lines (start, end and direction)

Also the pattern start coordinates.

take a look at the Acadlt.pat in the %appdata%\Autodesk\AutoCAD LT 2022\R28\enu\Support folder.

Open it in notepad.

All you see is 'text'

Look for the lines which represent the AR-B816 hatch, this is an 8"x 16" tile.

*AR-B816, 8x16 Block elevation stretcher bond
0, 0,0, 0,8 -> Is horizontal line
90, 0,0, 8,8, 8,-8 -> vertical lines

Copy these 3 lines beneath the "User defined Hatch pattern section.

Your subway tile is 6"x18", 

Change to:

*SUBWAY616, 6x16 Subway Tile
0, 0,0, 0,6
90, 0,0, 6,6, 6,-6

Save the pat file.

Open AutoCAD and apply the hatch.

[steven-g · Accepted solution]

Take a look at this site.

A hatch pattern .pat file does not use a block it is a text description telling Autocad how you want the pattern to be drawn. In your case the .pat file should read

*6x18, Tile
0,0,0,0,6
90,0,0,6,9,6,-6

[steven-g]

---

@Edwin.Rense wrote:

Copy these 3 lines beneath the "User defined Hatch pattern section.

Your subway tile is 6"x18", 

Change to:

*SUBWAY616, 6x16 Subway Tile
0, 0,0, 0,6
90, 0,0, 6,6, 6,-6

Save the pat file.

Open AutoCAD and apply the hatch.

---

Slightly confusing

you talk about a 6x18 pattern

label it as 6x16

and it creates 6x12 😀

[Edwin.Rense]

You are completely correct, changing back and forth from imperial to metric still is confusing. 😎

Yours will work better:

*6x18, Tile

0,0,0,0,6

90,0,0,6,9,6,-6

[pullstackautocad]

Namaste from nepal can you please help me with the section....

[pullstackautocad]

Namaste from nepal can you please help me with the section....

[doni49]

Rather than bringing up an old thread to request advice, it's usually a better idea to start a NEW thread in which you reference (by way of a link) the old thread. For better or worse, a lot of people tend to pass right on by old threads. Others specifically use the "UNANSWERED" tab above as a means to find threads in which they might assist someone -- that specifically filters for threads with ZERO replies. If your post is a reply to someone else's thread, then that thread will be filtered out.

When you post a new thread, you have a better chance of getting more eyes on the question. That equates to a broader range of knowledge which in turn leads to improved chances of resolving your issue.

[Edwin.Rense]

@pullstackautocad 

I had an entire message ready but it didn't upload.
So a shorter one now.

Due to the equal X and Y coordinates bottom and left, and the same for top and right, this hatch is not possible.

The blue squares need an offset from bottom and left to create a single hatch.
If the color need to be different you must use two seperate hatches.

With the offset the pattern would be this:

The pattern file lines would be:

*1100x1100, Tile
0, 55,55, 1210,1210, 1100,-110
90, 55,55, 1210,1210, 1100,-110
0, 55,1155, 1210,1210, 1100,-110
90, 1155,55, 0,1210, 1100,-110
0, 0,1210, 1210,1210
90, 1210,0, 1210,1210

Hope this works for you.