i've seen this problem, it happens when you double click a pad and change its location (not the component itself) it doesnt matter if the component has locked prims, which to me is a little naughty, If i recall correctly it didnt even warn me..... 99SP6.
Bye Rich -----Original Message----- From: Brad Velander [mailto:[EMAIL PROTECTED]] Sent: 28 March 2002 18:48 To: Protel EDA Forum List Server (E-mail) Subject: [PEDA] Footprint pads moving during or after copy/paste/move processes. Hi all, why do I usually get these weird ones? One of our engineers just came to me with an alignment issue for a couple pads within a footprint on a test pcb. Sure enough two pads within the 8 pad device are visibly shifted on the board. Checked the PCB file and the pads are shifted. Checked the library and the part is correct. Better then all of this so far, the test board involved actually had this section of circuitry copied from the main board after the main board was completed, the main board does not have the problem. Here is the events that led to this problem. I designed the main (full) pcb, everything is correct. I selected a subsection of the circuit and copied it to make a small test board. When I pasted this subsection into the test board I moved, rotated the selection to fit within the test board outline. Then I edited some component locations and attached pertinent traces. I did not, read never, unlock the primitives of the problem footprint. The result, I have a footprint where three pads are visibly shifted from their original locations within the footprint. It is a 8 pin ceramic package with a pinout similar to the number pattern below. The device is centered over an origin of 0,0 in the footprint library. The first pattern I show is as it should be, the second pattern is how it turned out, note 2 and 6 pads are shifted alternately left and right, pad three was also shifted vertically downwards slightly towards the center of the device. 1 2 3 1 2 3 8 0,0 4 8 0,0 4 7 6 5 7 6 5 Has anybody ever seen this problem? Any ideas on it's cause? How would you check for it in the future, without checking every single footprint? Remember, the original board this was copied from is fine, I didn't unlock the primitives of the component after copying it. All I did was paste, rotate, move the copied selection. 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 See us at Booth S8155 at NAB 2002 in Las Vegas April 8 - 11. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
