That is really cool. Along the way, I thought of, and then forgot, the possibility to just stuff a pcb edge right in to the two rows of a 2x4 header solder pins. Of course you don't need a stupid right angle header. :)
Oh man so much better than crimping those individual pins for those freaking dupont connectors. And I like how it's an adapter, and you use whatever cable you want. And you can replace a broken cable. On Sat, Jun 1, 2019, 8:47 PM Fugu ME100 <b4me...@hotmail.com> wrote: > I went for a slightly different solution and made a level shifter board > that fits into the TPDD 8x2 plug on one end with a DB25 towards the Model > T, then used an off the shelf straight through serial cable to connect the > TPDD to the Model T. Works really well no need to crimp anything just all > very straightforward soldering :) > > Did need to ‘extend’ the board a little to get the connector to fit > properly into the TPDD. I used an edge solder approach as you can see > (Hope the image is OK to attach?) I didn’t bother with a enclosure the > board is really tiny, although thought about using shrink tubing. It > could of been a DB9 but I had a lot of DB25s to use up :) > > > > From: M100 <m100-boun...@lists.bitchin100.com> on behalf of Brian White < > bw.al...@gmail.com> > Reply-To: <m...@bitchin100.com> > Date: Saturday, June 1, 2019 at 5:14 PM > To: <m...@bitchin100.com> > Subject: Re: [M100] dsub 25 hood that fits > <snip> > > Another idea is make a different pcb which goes on the tpdd end instead of > the m100 end. A crimp-on 2x4 idc (he said, redundantly, given what idc > stands for) plug does not fit in the hole in a tpdd, but maybe a female 2x4 > pcb header does. If you could just extend a female pcb header to stick up > off a pcb surface just a little more, then you could have a small pcb that > sits flat against the back of the tpdd, and has a plug that sticks in to > the tpdd. That would eliminate the *excruciating* process of crimping > individual tiny dupont connector pins I'm using right now. Then just cut > the db9 off a common modem cable and solder that to the pcb, and you have a > full cable that was much easier to build, and which fits in a M100. (Rick's > original cables were easy enough for him to build only because he used > FB100 cables to provide the tpdd plugs. I'm going for more available > parts.) Only remaining problem there is some sort of enclosure for the pcb. > Maybe the 2x4 header can be a right-angle type, and so the pcb sticks out > 90 degrees from the tpdd in line with the cable. Then, assuming the whole > pcb is small so it doesn't stick out too far, and give it a little dog-bone > shape, you could zip-tie the serial cable to it and enclose the whole thing > in simple heat shrink. I don't know if you can get a right-angle header to > stick out far enough from the side of a pcb to allow it to reach in to the > pins in the tpdd though. And I don't think there's enough room for the pcb > to extend inside the hole either. > > > <snip> >
