> -----Original Message----- > From: Wayne S via cctalk <cctalk@classiccmp.org> > Sent: 11 October 2022 20:23 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Cc: Wayne S <wayne.su...@hotmail.com> > Subject: [cctalk] Re: PDP 8a front panel hardware > > A local machine shop or even a college machine shop could knock out 10 of > those in an hour probably in steel. It’s worth investigating i think.
Many small machine shops have now switched to laser cutting. I got a load of paper tape stuff from a place that was getting rid of its "traditional" CNC stuff and switching to laser. A year or too ago I went on a 12" train ride at a garden center. When I asked about where he got the train from, he said it was a downloadable design, which was then laser cut... ... even the wheels... I have a 3-d printer, but I don't have much in the way of metal working tools. Its that way round because friends already had such things and would make stuff for me... Dave > > Sent from my iPhone > > > On Oct 11, 2022, at 11:17, Vincent Slyngstad via cctalk > <cctalk@classiccmp.org> wrote: > > > > On 10/11/2022 10:48 AM, geneb via cctalk wrote: > >> If someone wants to provide me with a drawing, I'd be happy to design a 3D > model of the part and print a few of them for testing. > > > > Here's a pointer to mine: > > https://so-much-stuff.com/pdp8/cad/3d.php > > https://svn.so-much-stuff.com/svn/trunk/3D/8AClip/8aClip.jpg > > > > The two holes in the base take screws to mount to the rack. Depending on > > left > vs right, you would drill and tap the indentations on one side or the other. > > > > I could swear there was a recent (in the last year) conversation with > > Michael > Thompson and others about this on VCForum, but it must have been before the > VCForum site moved, as the search tool didn't find it. > > > > Anyway, the original is bent bar stock, with notching near the apex, and a > > nut > press-fit/spot welded where I've drawn an indent. I've drawn it as a > triangular > plastic block in an effort to make it more structural. > > > > A recessed screw in the KC8-A screws into the nut from the bottom to attach > the panel on each side. > > > > Vince
