Modify mechanical symbol dimensions

Question

Hello,

I have a question regarding mechanical symbols. For a course that I am currently enrolled in at my university, our professor gave us a project with multiple requirements. He specified that we should use MTG125 for the mounting holes, but we have a requirement stating that the hole diameter should be 3.2 mm (126 mils instead of 125 - the default value for MTG125).

I have tried to modify the symbol itself (after making a copy of the original one) and adjusted its pad (modified all the dimensions accordingly). However, it's not working - the symbol remains the same as MTG125. While I understand there's a very small difference between 125 and 126 mils - and this is just a university project - I still need to implement this requirement.

Does anybody know how I can modify it? The professor showed us how to do this in OrCAD 17.2 PCB Editor (Tools->Padstack->Modify Design Padstack, which then opens in Padstack Editor), but I am using OrCAD X Presto. How can I solve this problem?

oldmouldy · Accepted Answer

Try this: Set the Properties to Pins only, select the placed MTG125 in the canvas with a left-click. In the General group you will see the Padstack, PAD125, as a link, left-click that to get the Search to show the placed MTG125 symbols in the BRD. Move to the search results, the Padstack column will list the PAD125s, right-click in one of the PAD125 cells and take Replace Padstack, then you can Update All, or Update Selected and use the "..." to browse for the replacement Padstack, and then Apply. (You may need the Ignore Locked set if the MTG125 Symbols are locked)

Stats

Modify mechanical symbol dimensions

Community Guidelines