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Correct specific rotation angle...again

Grubi

In Allegro/Orcad PCB standard, 16.6 S064 have the following annoying problem: Have number of components which I left in previous PCB version in fraction rotation angles rotation: 269.996 degrees (90.003 / 0.005 / etc. - because probably I've done spin with cursor at 0 deg. rotation). I simly cannot Zero this fractional angle!

It is like 20 components from 200, but it is annoyng, especially for manufacturing. I try to resolve this by selecting component Move/Spin/Rotate, choosing Absolute / 270 / Body center and all possible combinations of Absolute/Relative and different rotation points, and even "iangle" in command prompt, but without success. Done this in General Edit or Placement mode. Only way to fix this currently is to unplace component and when place it again fractional part is reset. But it takes a lot of time.

It is either I am doing this wrong or I missing something into rotation concept.Obviosly I cannot also move the component to any specific angle - it always stays on 'moved angle.fractional angle'. Any advice or specific command I can use? Can it be something from design parameters, etc.?

Thanks in advance - I am asking this question for second time, and first time left the board as it was, but now there will be new revision, so I want to finally fix it and learn how to do this. Or place/unplace all these components and route them again.

  • I feel your pain.  I have encountered this as well.  Here is a method I used.

    1) File->Export Placement

    2) Edit the placetxt.txt file in Excel and perform rounding on the angles using a formula.  Save the file back out from Excel with all the original fields but with the angle corrected.

    3) Delete all components in current board then File->Import->Placement and parts should come back in at the correct (new) angle.

    I have been able to manually correct the spin angle by doing a Edit->Spin, Absolute, Sym origin but this is painful if there's more a handful of parts to do. Not sure why you're not seeing the angle correct itself when you do that.

  • Thanks @redwire - have bunch of virtual beers from me! I will test "global" method later, but I found why "classic" was not working. So, I was always use RMB and then try Move/Spin/Rotate ops - NO change. Now, with no components selected, in Placement edit (mode) - Edit menu, Rotate, then in Options - Absolute/Angle/SymOrigin and then with Symbols filter selected click over the component - and it is working THIS time.
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