command "Copy to layers..." - unpleasant behaviour
As Orcad PCB Designer keeps complaining about board outline being in layer Geometry / Board geometry / Outline instead of Geometry / Board geometry / Design_Outline, I chose to copy the shape from the...
View ArticleAllegro 3D Canvas: How to save list of unplaced components?
The feature Allegro 3D Canvas works quite well in Orcad PCB Designer 17.4. As usual, my design contains some parts (components), that are not placed. They should be left out in the 3D-output, too....
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Thieving
Thieving or Copper Thieving is a process of adding circular/square copper areas to large blank spaces on a layer to even out the copper distribution. The copper that is added is not connected to any...
View ArticleCombine imported dxf data into a group (answer)
After importing dxf data, it (sometimes, always?) consists of several independent lines. The last answer in the thread grouping of symbols in Allegro explains how to group them together into one group....
View ArticleBOM including "mirrored" - information?
I was asked to provide a BOM (bill of materials) containing the information, if the part is placed TOP or BOTTOM, meaning being mirrored or not.Of course, the preferred place to generate the BOM is the...
View ArticleMoving Mechanical Symbol
I am running OrCad PCB Designer Professional V 17.4 S027. I placed a slot as a mechanical symbol on my PCB. I want to move it. No matter what I've tried, I cannot select it to move or delete. I've...
View ArticleFINDING THE ALLEGRO.ILINIT
Just an announcement to everyone . Hopefully someone finds this useful . to find where the allegro.ilinit file should go you can type getSkillPath() in the skill editor, this reports all the search...
View ArticlePopulate Allegro PCB template with attributes from a capture schematic title...
Hi guys.In the Older HDL one could push things like P/N and other text based attributes that were in the schematic title block so they would show up in an allegro title block.Is it possible to do this...
View Article[Help] How to get relative prop delay Delay value (delta :tolerance) of match...
Hi guys,I have trouble when building a skill export match group to a report file *.txt form design. But I can not get the relative prop delay Delay value (delta: tolerance) of the match group.Below is...
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Skill method to optimize netlist (pin assignments) during routing using...
I requested that Cadence remove the previous share of this after I found out Microsoft Skydrive eventually stops working without my login. By then, the post was locked. Sorry about that. Moved to...
View ArticleDeleting diff pairs in constraint manager
I have a pcb design where the pins in the previous version of this design were actually diff pairs. In the latest revision of this design, these pins have been changed to single type nets, not diff...
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Allegro - Tip of the week: Using the Delete by Rectangle command
There is a quick and easy way to cut through several tracks at once. Use the “Delete by Rectangle” command to make a window cut in a group of clines. Access the command from Manufacture > Drafting...
View ArticleHow to update shape in one of layers?
Hello,How to update shape in one of layers?I want to update only one layer not all.
View ArticleDownloadable PCB - Title block acc. ISO 7002 (metric)?
HI!Is there a place to download an A3 - format title block for Orcad PCB designer? Title blocks are standardized in ISO 7002.This topic touches the topic Populate Allegro PCB template with attributes...
View Articledifferential pair spacing to to other nets
Hello,I am struggling with setting up diff pair spacing to other nets without overriding the differential member spacing.I've gone through the instructions on Cadence_App_Note_165 several times without...
View ArticleSelect/group component using schematic PDF
Dear All,I have schematic pdf only no .DSN file, need to do placement using PDF. is there any skill to select component using PDF, or else we need to go PDF and see refdes and find in layout is there...
View ArticleRestore/undelete Refdes in OrCAD PCB?
I just realized that I accidently deleted the refdes text for a couple components. Is there a way to restore the text without deleting and re-placing the part?
View ArticleHow to handle components that literally share a footprint?
Continuing with my OpenVPX learning, I've run into an issue with connectors that are placed on the rear side of the backplane, but use the same through holes as the usual front-side connectors....
View ArticleAllegro 17.2 and 17.2 Drill chart of drill rectangular slot columns unfilled
Hey,I am having issue with allegro 17.2 and 17.4 that the drill chart is not showing the whole data for the rectangular drill slots.Few columns remain empty.Does it support for the rectangular slot or...
View ArticleWaived DRC Report
I am using Allegro 17.4 PCB Editor and want to extract my waived DRCs. All my waived DRCs have comments. When I select Waived design rules check report from the quick reports menu I get a report but...
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