Could this be because you were editing the pad location instead of the component location?
I have a couple of single (through hole) pad test point parts with which that I have noticed this - double clicking the pad brings up the pad location properties box not the component location properties box. > -----Original Message----- > From: Robert M. Wolfe [mailto:[EMAIL PROTECTED] > Sent: Tuesday, 26 August 2003 22:09 > To: Protel EDA Forum > Subject: Re: [PEDA] Geometric Center > > > Brad, > I noticed that parts go off center in 99SE also > when changing a parts location by typing > in the X,Y in properties menu. > Especially single pin parts for some reason. > The only way I saw to fix it was update footprint > from library, any better suggestions? > > Bob Wolfe > > > ----- Original Message ----- > From: "Brad Velander" <[EMAIL PROTECTED]> > To: "Protel EDA Forum" <[EMAIL PROTECTED]> > Sent: Monday, August 25, 2003 2:27 PM > Subject: Re: [PEDA] Geometric Center > > > Tim, > on your original question about the mid part calculation, I > thought that it > was calculated from the center point of the pads within the > device. I am not > absolutely sure on that but that is what I recall from > experiments that I > did years ago. It seemed to ignore the silkscreen and other layers and > seemed to only calculate using the pads. Try calculating it > yourself using > the pad centres of the pads in the device, a device like a > TO263 should > easily show where the centre is being calculated from. > > On your statement below I would caution you that there is a > bug in P99SE > that I discovered a year or more ago when placing parts. If > you are moving a > part while pressing the spacebar to rotate it, you can have > the part centre > shift off of your cursor location. This is most prevalent if I used a > rotation angle of about 5 degrees. It was worst if you moved the part > quickly while doing the rotation. Not sure that this could be > what you have > seen but thought I should mention it. > > Sincerely, > Brad Velander. > > Lead PCB Designer > Norsat International Inc. > Microwave Products > Tel (604) 292-9089 (direct line) > Fax (604) 292-9010 > email: [EMAIL PROTECTED] > http://www.norsat.com > > CONFIDENTIALITY: This e-mail and any attached files may > contain information > that is confidential and may be privileged. If you are not > the intended > recipient or the person responsible for delivering the message to the > intended recipient, please notify the sender immediately and do not > disclose the contents to another person, use it for any > purpose or store or > copy the information in any medium. Thank you. > > > > > -----Original Message----- > > From: Tim Fifield [mailto:[EMAIL PROTECTED] > > Sent: Monday, August 25, 2003 10:06 AM > > To: Protel EDA Forum > > Subject: Re: [PEDA] Geometric Center > > > > > > Thanks John, > > > > We had some hall sensors that were placed properly on the PCB > > but when we > > imported the Pick and place files into solid edge to create a > > 3D model and > > mechanical check the halls we not placed correctly. It > turns out that > > because of the part rotation on the PCB, protels calculated > > generated mid > > x,y was different than my ref x,y (which is the center of the part). > > > > Tim > > > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
