Steve, I understand, prototypes or one-offs are not the same as production.
You could also use their 3169 series. This is pre-mounted onto a removable Kaptan tape strip. See the following link: 3169-0-61-15-00-00-03-0 - Double Tail Header Pin | Mill-Max Mfg. Corp. (mill-max.com) <https://www.mill-max.com/products/pin/3169/3169-0-61-15-00-00-03-0> This may save you some time if you made a jig to hold the strips steady. I would make a wooden block with CNC drilled holes to hold the spacing, but if you designed your PCB with the correct hole size for the tails, it should center up nicely by itself My main concern would be not to "stretch" the screw machine socket that the "daughter" board is plugging into out of shape. So for me, the cost of the pins would outweigh the potential socket damage. Replacing the socket may damage the PCB, so I would pay extra for the "plug solution", even though it never gets removed. I have also used the Mill-Max pins where the "daughter" board is non-removable. I replaced my T102s RAM memory with a 256K daughter board assy decades before REX was a product. It is 32K banked, and works fine with REX, so I never removed it. It is instantaneous to switch banks, but doesn't have the "backup" feature that REX provides. I use them both. Regards, Peter <snip> > ------------------------------ > > Message: 2 > Date: Mon, 1 Mar 2021 06:21:59 -0500 > From: Stephen Adolph <twospru...@gmail.com> > To: m...@bitchin100.com > Subject: Re: [M100] low profile pcb pins > Message-ID: > <CAMCMnV7oudTaOx1ABFdxfuNDn-cUuWT+zBwS6PTiO=dPx= > s...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Peter, > Thanks for the good guidance. > A long time ago I bought some Mill-Max pins, qty 500, for a song at > digikey. that has been keeping me going for a long time. > they were 1267 I believe. > I recently bought some additional pins of different types from digikey, and > while it works to place single pins one at a time, Is it a bit slow and > cumbersome to tweezer pins into place like that. > > Your assembly process is exactly like mine. I use a machine pin socket as > the form. > > Thats what is really nice about the 28 pin headers I have been using. Very > quick to assemble. > > I'll check out these parts- 3121 series or 9081. > > cheers > Steve > > <snip>