How to place pin supports the same everytime board is ran?

In my opinion, the best solution is h-towers or similar dedicated tooling designed for each build. However, a quick cheap fix is to make templates to lay in the bottom of the centernest. If you have access to CAD software, you can print out the gerber data or the stencil design file, then sketch in the locations of the pins after a good reliable set-up. Then, go back to your CAD or SolidWorks or whatever you have and draw a template with exact x/y locations. This way you can't loose the templates. You can print it 1:1 before a run, lay it in the bottom of the centernest and place your pins on top of it or punch holes and mark it with a sharpie (marks come off easy with alcohol). If you don't have CAD, use a clear plastic sheet to X mark the spots for pins using the actual PCB/array then keep them for the next go.

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I would agree with Sr Tech..Grid lock and systems like this can be used on the Ekra, MPM and DEK printers also can be used in Pick and place depending on the density of pin. If you choose the method of printing out a 1:1 photoplot. Glue it to a piece of Lexan and make the Lexan the same size as the board. Again you can also use this in a pick and place for placement of parts. I guess it all depends on $$$$$$ available and type of job. I tend to favour the other methods. They do not damge or move the components.

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There were some issues with the older grid-lok systems that have been resolved in the newer designs. We run them in all of our printers and Fuji chip shooters. The only issue we see is that the air pressure may need adjusted on thin boards.

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