Hi Keith, I have been following your progress with interest on the various forums. I have a working c5 except the cassette, I first thought I cannot be bothered moving the lathe to sort out after I

Hi All, Today I plugged in a monitor to the C5 to see what happened when I loaded a programme from MFI. I also tried to save the programme to Floppy Disc. The commands used for the FDD are the same as

Hi Dieter, Thanks for your message. Yes it is strange that the 5 volts is not taken from the PSU. I am not too bothered about the disc for the moment as my PC interface works very well even at 300

Hi Keith, Really funny not to use the 5 V directly from the X43 or from wiring to the power supply. Does your serial interface work? I don't use the tape anymore and replaced the drive by an self

Hi All, I remove the CPU PCB this morning to check the wiring from plug X43. The plug is connected to the same Peripheral Interface Adaptor chip (PIA) that feeds the stepper motors. I could not see

Hi Dieter, Thanks for your reply. The interface board is both complex and has mainly Surface Mounted Devices (SMD) so they are small. The floppy seems to be OK when connected to a normal PC. There is

Hello Keith, If I have correctly understood your C5 has the same commands as for a tape drive, so the floppy controller emulates the old tape drive. This controller looks more complex than the

Hi Dave, Thanks for your suggestion. I suspect the floppy is used in a standard way driven by the interface attached to it. As I have never seen it running I cannot record anything on the discs. Alarm

Keith, here is another thought about the 3 1/2 floppy. In the early years of the PC, HP computers used a 710 floppy. I don't remember the details, (late 80s, early 90s) but if you get that

Hi Dieter, My machine was built in 1987 and is mainly grey in colour. If you look on YouTube you can find one very similar to mine with a FDD instead of a Tape. The FDD drive interface is connected to

Hi, - The drives/axis still have a bit of a pulse that I didn't notice while running in CNC mode All C5 makes the same noise in MAN mode when moving fast, the CPU is to slow to keep up and the small

Hi Keith, I noticed only a few months ago on a french site that a floppy drive existed for the C5. Have you tried with different floppy types ( 720 kB and 1.44 MB or commodore compatible)? Perhaps

Hi Geoff, Look here for the diagram: https://groups.io/g/Emco-CNC-Users/files/Emco5cnc%20Original%20circuits (in "files" you find nearly everything) Dieter

Hi Geoff, Have you tried the motor brushes to see if they are worn or sticking. Brush problems are quite common in permanent magnet motors. The unworn brush length is mentioned in the maintenance

Hi, I’m looking for the circuit diagram for the spindle motor drive board. Having intermittent problems with motor whereby occasionally it makes a strange twanging noise with a glitch in high

https://www.emco-world.com/uploads/tx_commerce/emcotronic_Turn_En_F_01.pdf This link is for the Emcotronic control, but has installation info for Winnc.

The ACC was offered from EMCO for a cost of over $ 4,000.00. I bought a 55 mill that had this conversion. The inside of the mills cabinet had basically the interface card, mini ITX computer. This mini

Hi Tim, If I understand correctly, the ISA board for RS422/485 requires a hardware IRQ address. Win 98 supports that, XP doesnt. There was a not so cheap possibility to update to a LAN controlled

Hi David, My PCT55 has the AC95 controller with RS422, running Win95.

From my experiences and having a friend who was a EMCO Maier educational dealer the early 55 series still used a Win98 system. These have the RS485 cards. They changed to the RS422 cards after and