Gregg, to say it clearly once again: The Sub-D (DB-xx) connector on the side of your machine has surely nothing to do with PC technology, whatsoever. It is just an (still) easily available, low power plugging system that can be used for any purpose requiring multiple pins.
Especially, your connector has nothing to do with game ports, analog inputs, network connections or anything of that sort. I myself adopted Sub-D 9 long ago as my standard encoder connection system. And I am using Sub-D 25 in my model ship as a RC-signal bus. Anybody is free to make his own standards with it. Keep away any cable from that connector until you know what the pins are connected to! If I had to construct a machine like yours, I would fit a power supply in the back of it together with a circuit board containing a indexer IC and a H-bridge amplifier for the steppers. Their signals, step and direction each, together with the limit switches (probably behind those bellows) would be connected to the Sub-D connector on the side. To avoid trouble with cables, I would chose a Sub-D 15 pin connector because they are not so commonly used, compared with 9 pins. That's it. The rest happens in software. 100% sure that the motors are pure steppers, no encoders needed there. As a matter of fact, I have built such mini-mills for circuit board drilling and fitted a precision miniature mill and my large milling machine for gear wheel making that way. So, you will find 4 or 6 step-and-direction pins, several sensor switch pins (depending on the number of axes controlled and the way they are hooked up), postive voltage supply (red) and ground (black or brown) connected to that connector. These would all be identifiable once you opened that darned case and mailed some pictures. Unscrew the circuit board, fold it out and take pictures from the othe side. Look for 297 and 298 type IC's on the boards, they were used frequently as indexer and bridge. I am very sure you won't find microcontrollers in there, nothing to do for them is a simple application as this. Greetings Peter Am 15.07.2016 09:39, schrieb Gregg Eshelman: > DA-15. DB is the size of a PC parallel port. 9 pin serial ports and Atari > 2600 or old SEGA game ports are DE. The letter references the size of > D-Subminiature connectors. Apple's 19 pin floppy connector is a bastard size, > used in very few applications - something on NeXT and Atari in addition to > Mac and later apple ][ external floppies, so it has no official letter > designation. (But people still call it DB-19.) > > Well, they haven't been made since sometime in the 1990's and the supply had > completely dried up. Big Mess O Wires makes a floppy emulator for old Mac and > apple ][ computers and needed those connectors but couldn't get any. > Eventually he roped in NeXT and Atari enthusiasts and an electronics supplier > wanting some - raised enough money for the 10,000 piece minimum order. > I wonder what it felt like to have the entire worldwide supply of a new thing > sitting on his patio? DB-19: Resurrecting an Obsolete Connector | Big Mess o' > Wires > > > | > | > | > | | | > > | > > | > | > | | > DB-19: Resurrecting an Obsolete Connector | Big Mess o' Wires > | | > > | > > | > > > > > From: Ralph Stirling <ralph.stirl...@wallawalla.edu> > To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> > Sent: Thursday, July 14, 2016 10:14 PM > Subject: Re: [Emc-users] Anyone heard of EBZ Engineering from the mid 90's? > > DB15 connectors are used lots of places besides ancient pc game ports. > Highly unlikely this machine has any connection to the game port. > > If you can determine the type of motors (stepper, dc brush, or unlikely > brushless dc), you can then either ditch all the electronics or start > figuring out what the chips on the pcb are doing. If there is a big > microprocessor (40 pins or more), forget using the electronics with lcnc. > > -- Ralph > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity planning > reports.http://sdm.link/zohodev2dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. http://www.avast.com ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
