Author Topic: Unexpected Behaviour with slots (AD19.1)  (Read 1379 times)

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Offline luky315Topic starter

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Unexpected Behaviour with slots (AD19.1)
« on: March 25, 2023, 02:51:16 pm »
I need a footprint with plated slots and found this rather strange behaviour in Altium designer 19.1 (no, i dont want / can upgrade): When the slot is set as "Slot" the polygons have a big clearance, but if I use "Rect" they behave as expected.
It is also strange that the pads seem to be bigger internaly (see the transparent selection marker)
Is this a Bug or intentional?
 

Offline mengfei

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #1 on: March 27, 2023, 09:45:12 am »
check your pad stack & see if it's simple or full stack, change to simple if the board is only double side & see if it has any effect
 

Offline luky315Topic starter

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #2 on: March 27, 2023, 09:49:02 am »
No, same behaviour with Simple, Top-Middle-Bottom or Full Stack.
 

Offline Pseudobyte

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #3 on: March 27, 2023, 12:21:40 pm »
What is the defined poly -> hole clearance for those nets. You can inspect the applicable binary rules.
“They Don’t Think It Be Like It Is, But It Do”
 

Offline luky315Topic starter

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #4 on: March 27, 2023, 01:47:30 pm »
Clearance is 0.2mm for everything... It behaves as expected for rectangular slots (see first post)
 

Offline ajb

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #5 on: March 27, 2023, 05:49:44 pm »
I noticed some weird behavior recently with thermal reliefs causing strange polygon shapes, if you change the connect style or spoke arrangement does that change the behavior?  Not that it would necessarily solve your problem but might narrow it down.
 

Offline luky315Topic starter

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #6 on: March 27, 2023, 05:55:20 pm »
Thanks, but no, it's the same wit direct connection (without thermals)
 

Offline mengfei

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #7 on: March 29, 2023, 12:56:35 am »
try
make a New blank PCB
copy that PCB File to the New
Set pad stack to simple & see

I have those type of pads & try to recreate your error but no matter what i changed it still stayed OK
 
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Offline luky315Topic starter

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #8 on: March 30, 2023, 07:22:35 am »
Still the same :-(
 

Offline Akutchand10

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #9 on: June 28, 2023, 06:58:38 pm »
Thanks for the information!
 

Offline mengfei

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Re: Unexpected Behaviour with slots (AD19.1)
« Reply #10 on: June 29, 2023, 03:14:56 am »
Thanks for the information!

are you in the same situation?
 


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