AUTOCAD 24 AM_Standard Dim Style

[lorrinbCD66K]

I noticed an issue I am having in AutoCAD Mechanical 2024 that I was not having in 2020.   When I create a template I create a new dim style.  I go into the Dim Style settings of the AM_Standard to change the Base Dim Style to my new style.  I then apply and save dwt.  When I open up the dwt the Base Dim Style defaults back to the AM_ANSI style.

When I follow the same procedure in Mech 2020, the new dim style remains as the Base Dim Style.  Is there some other setting in Mech 2024 I need to change to get the new dim style to remain as Base Dim Style?

[Keshava_Murthy · Accepted solution]

Hi @lorrinbCD66K,

Thanks for your question.

Please check if the steps followed to create the template is same as below:

1. Launch am_ansi.dwt
2. Invoke cmd: DDIM (DIMSTYLE)
3. Click New > Give a New Style name say "acm_sample" > Continue
4. In Modify Dimension Style > make the required changes > OK
5. In Dimension Style manager > Select the new style "acm_sample" and click "Set Current" > Close
6. AMOPTIONS > AM: Standards > Under Standard elements > double click "Dimension"
7. In Dimension Settings > Under Dimension style > Select the new style from pull down > Base dimension style: acm_sample
8. Check the "Force power dimensions to use this dimension style" > Apply > OK > Apply > OK
9. Saveas the dwg as template > Saveas: "acm_sample.dwt" > In Template Options > Click OK
10. Create a new drawing from this new temple.

I have attached a sample template created in ACM 2024 following the above steps.

Please let us know if this helps in resolving your issue.

[lorrinbCD66K]

Thanks

[lorrinbCD66K]

A follow up to the issue.  I now have AutoCAD Mech 2026.  I changed the base dim style to MFI_375 and then save the dwt.

However, when I reopen the dwt the base dimension stye reverts back to AM_ANSI.

The same thing happened when I was using Mech 2024.

[Keshava_Murthy]

Hi @lorrinbCD66K,

If possible, Can you please share your template (.dwt) file for checking. 

[lorrinbCD66K]

Here is the last dwt I was working on.  The Dim Style should be MFI_375.

[Keshava_Murthy]

Hi @lorrinbCD66K,

Thanks for sharing your dwt file.

When I opened this dwt in AutoCAD Mechanical 2026, it showed as AM_ANSI in dimension settings.

Later I changed to MFI_375 and checked "Force power dimensions ......." > Apply > OK and again saveas to a dwt file.

and when I open this saved dwt it shows MFI_375.

Can you help to please recheck. 

[lorrinbCD66K]

I followed the steps you laid out but the base dimension always reverts back to AM_ANSI.

If I open the dwt as a dwt the dim style will use MFI_375 even though the base dim reverted back to AM_ANSI.  

However when I open a dwt using QNEW, the dim style default is AM_ANSI.

There must be some sort of default that keeps forcing the base dim to use AM_ANSI when I open a dwt.

[Keshava_Murthy]

Hi @lorrinbCD66K, 

To use your template in QNEW, please follow below steps:

AMOPTIONS > Files Tab > Template Settings > Default Template File Name for QNEW > Browse the required template (375_Blank.dwt) > Apply > Ok
Click QNEW to check the new template.

[lorrinbCD66K]

Setting this template as default for QNEW doesn't have anything to do with this issue.  When I open the dwt in QNEW it still changes the default DIM_Style to AM_ANSI.

[Keshava_Murthy]

Hi @lorrinbCD66K,

step 1: please make sure in Dimension Style manager (DDIM) > Select MFI_375  and click "Set Current" 

step 2: AMOPTIONS > Dimension settings > Base dimension style: MFI_375 > check "Force power dimensions.... 

step 3: Save this file as a dwt

step 4: AMOPTIONS > file tab > template settings > Default template for Qnew > browse the dwt saved in step 3

step 5: Click QNEW: new drawing is created with the saved dwt. 

DDIM style shows MFI_375 as current dimensions style and AMOPTIONS > base dimension style shows: MFI_375 

I have the dwt attached here which works good on my machine. please retry. Thanks.

[lorrinbCD66K]

What version of AutoCAD are you using?  As I have stated before, I have followed the steps you laid out numerous times.  It doesn't work.  It didn't work in AutoCAD 2024 and it doesn't work in AutoCAD 2026.  The only version I got it to work in was AutoCAD 2020.  Unfortunately we just got new computers and IT only loaded AutoCAD 2026.

Note: I downloaded the template.  However, when I saved the template (without modifying your changes), the base dim reverted back to AM_ANSI.  There has got to be some setting that forces the base dim to reset. 

[lorrinbCD66K]

Finally found a solution.  I had to set my default profile to <<Vanilla>> then set the default base dim style to my custom style.   After saving dwt while in the Vanilla profile, I could switch back to my custom profile.  I couldn't figure out what in my custom profile was causing the issue.