Counter-Clockwise Pad Numbering?

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   I'm a total noob with FPExp 2022.I'm trying to build a pattern with Counter-Clockwise numbered pads. (PDIP-6 On Semi B46BY)
Using the Pin Array Wizard there seems to be no selectable Step pattern that will result in this numbering scheme. 

All of the available options result in interdigitated (Connector Like) numberings.

Am I missing something, or just pushing a boulder up-hill?

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Blaylock Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 03 Jan 2022 Status: Offline Points: 5	Post Options Post Reply Quote Blaylock Report Post Thanks(0) Quote Reply Topic: Counter-Clockwise Pad Numbering? Posted: 07 Jan 2022 at 9:57am
	I'm a total noob with FPExp 2022. I'm trying to build a pattern with Counter-Clockwise numbered pads. (PDIP-6 On Semi B46BY) Using the Pin Array Wizard there seems to be no selectable Step pattern that will result in this numbering scheme. All of the available options result in interdigitated (Connector Like) numberings. Am I missing something, or just pushing a boulder up-hill?



Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 10:13am
	All footprints have counterclockwise pin numbers. We cannot find Onsemi P/N B46BY. Can you provide a web-link to the datasheet? Or post a picture of the package with the pin numbers. Or attach a FPX file in a .zip file. Thanks
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Blaylock Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 03 Jan 2022 Status: Offline Points: 5	Post Options Post Reply Quote Blaylock Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 10:42am
	Sorry, 646BY is the On-Semi Case Code. It's a standard pattern: https://www.onsemi.com/pdf/datasheet/4n37m-d.pdf I think a similar part is in the POD under MOC3041 I can manually re-number the pads, but there doesn't seem to be a way to auto-generate them, numbered down the left side, then up the right side.

Blaylock Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 03 Jan 2022 Status: Offline Points: 5	Post Options Post Reply Quote Blaylock Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 11:10am
	I took a screenshot of what I'm seeing: https://drive.google.com/file/d/1lXyacAkYd_kpptmkN44PQdujj5TdP4wx/view?usp=sharing

Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 11:16am
	This is the PDIP6 in V2022.01 Footprint Expert through-hole calculator. What is the problem?
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Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 11:27am
	You can use the Through-hole DIP component family to create the pattern and then move it to FP Designer to swap out the pad stacks with SMD pads.
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Blaylock Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 03 Jan 2022 Status: Offline Points: 5	Post Options Post Reply Quote Blaylock Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 12:11pm
	Thanks Tom. I see now that both the Surface Mount and Through-Hole calculators automatically generate a counter-clockwise numbering scheme. I've made TH and SM patterns and put them into the Demo Library. When I "View" the selected part or footprint it opens into the calculator used to generate it.... Per your reply how can I "import" a footprint into the Designer for editing? This Works, I found the "Move Footprint to Designer" toolbar icon in the Footprint window. It is unfortunate that the Designer doesn't automagically do the "right thing" for making ICs. I do like the custom part naming options that the Designer also allows, but would like choice of applied separator. "-" vs "_" I'm unstuck..... Thanks for the fast replies. +Paul

Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 1:11pm
	We need to do a webcast to see what you are doing. There are no limitations to pin assignments in FP Designer. Enter the coordinate of Pin 1 and the Step is how many more pins you need, and the Pitch is either negative or positive value. Negative value the pin assignments go clockwise and Positive is counterclockwise. All Footprint Expert users have unlimited technical support, so we can do a FP Designer demo to show you all the features.
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Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 07 Jan 2022 at 1:33pm
	There's an icon button in the toolbar that allows you to move most footprints from the Calculator to FP Designer.
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