Date   

Re: 3.5 inch floppy drive controller

Keith
 

Hi All,
I have added another photo to the album.
The photo shows a sketch of the 5 Volt supply on the interface board.
I believe that the component in my photos marked PJ220 is I think an encapsulated inductor.
The component marked PH I think is a zener diode, the full markings are PH37G.
My guess is that the 16 volt rail is switched on be the logic through the base of the transistor.
The 16 volts is then reduced to 5 Volts by the zener and the inductor act to prevent surges.
I cannot find any reference to either the PJ220 inductor or the PH37G components so all this is supposition at this stage.
I have trawled the net for interface cards but not found anything remotely similar.
Any ideas would be much appreciated.

Keith



Re: VMC-100 central lubrication intervals

FRANCOIS JACQUES
 

Bonjour Martin
 je possède aussi une VMC, en cours de rétrofit car la TM02 incomplète est inutilisable, ton idée est simple et acceptable à mon avis. Je pense que commander le graissage en ce basant sur le temps de fonctionnement de la broche (1h,2h?) serait simple à réaliser sans programmation, une commande manuelle (bouton poussoir lumineux) à actionner avant de démarrer un usinage complétera ta modification.
Tu verras à l'usage pour optimiser la temporisation, trop d'huile de graissage dans le liquide réfrigérant par exemple.
Cordialement.
Jacques.

Garanti sans virus. www.avast.com


Le mer. 5 août 2020 à 17:18, <atlantis@...> a écrit :
Hi

I am currently retrofitting my VMC-100, it is a slow process but I think I'm getting there.

For the Willy Vogel central lubrication my plan is to turn it into a time-interval lubrication. I'm sure that LinuxCNC can do the same travel-based lubrication that the M2 control does (add up the travel on the guides and turn the pump on for 8 s after every 20 m) but I can still dive into that later if necessary, for the moment I try to keep the fancy programming to a minimum. I have also added a level control that starts beeping if the oil level in the reservoir goes too low, basically every other machine I know does that anyway.

The only thing I wonder is what interval might be appropriate. Has anyone else done it this way and what intervals are you using?

Regards
Martin


Re: Windows 98 hard drive help

wild_kow
 

I have mine installed on a Pentium II. The most important thing is that the computer does not have a built in video port. This causes conflicts which cannot be overcome easily. Look for a computer without the port built in but with the port on a separate plug-in card. Make sure that is a plain video card without added features. Also make sure the serial port is not doubling as a gaming port.

I spent many hours resolving issues. I bought identical computers for my PC50 mill and PC55 lathe. I got the mill to work but not the lathe, even with the same computer. I bought another almost bare computer for the lathe and that does work.

John W


From: Emco-CNC-Users@groups.io <Emco-CNC-Users@groups.io> on behalf of arjan.dijk via groups.io <arjan.dijk@...>
Sent: 06 August 2020 11:17
To: Emco-CNC-Users@groups.io <Emco-CNC-Users@groups.io>
Subject: Re: [Emco-CNC-Users] Windows 98 hard drive help
 
What kind of computer are you trying? It does not seem like the smartest thing to install it on a 486. That will be painfully slow



Re: Windows 98 hard drive help

arjan.dijk
 

What kind of computer are you trying? It does not seem like the smartest thing to install it on a 486. That will be painfully slow

Op do 6 aug. 2020 om 09:31 schreef Constantine Christophi <conners@...>:

I had great difficulty in finding the floppy version of Windows 98, the solution I went with was piggybacking an internal CD ROM drive set to slave on the same IDE cable as the hard drive and installing that way. 

Another problem I ran into was the minimum system requirements. RAM was easy (just buy some) but with the CPU I had to override the CPU check with commands:


Re: Windows 98 hard drive help

arjan.dijk
 

I think the Windows 98 disc is not a real critical boot disk. Just open the ISO in windows and copy the content should be enough.

Op wo 5 aug. 2020 om 23:47 schreef Baschwar@ <baschwar@...>:

No usb on this machine. 

I have the CF Card Adapter, but imaging the iso didn’t work. 

May have to try the partitioning. I don’t have a boot disk (yet) 

Thanks for the input 

Brad 


On Aug 5, 2020, at 2:14 PM, arjan.dijk <arjan.dijk@...> wrote:


Several options

1. USB could work if available. Maybe need to boot from floppy.
2. Try a CompactFlash card (has the same pinout as ide, only smaller, adapters are cheap) as a harddrive and fill it with the windows setup
3. Try a SD IDE adapter
4, Connect the harddisk to a modern pc with a USB ide adapter, partition the drive and copy the windows setup to a second partition. Still have to boot from a floppy I think



Op wo 5 aug. 2020 om 21:43 schreef Baschwar@ <baschwar@...>:
Can anyone help me get a working Windows98 hard drive set up? 
I have the machine and a drive, but no way to get Windows 98 installed since the computer doesn't have a CDROM -- only floppy. 
Suggestions? 


Re: Windows 98 hard drive help

hurtisover2011
 

Hi, I had similar  problems so l bought a drive off ebay. CD/DVD drives are widely available and are not expensive, I got mine for £9.99 free p+p.
Ed

On Wed, 5 Aug 2020, 20:43 Baschwar@, <baschwar@...> wrote:
Can anyone help me get a working Windows98 hard drive set up? 
I have the machine and a drive, but no way to get Windows 98 installed since the computer doesn't have a CDROM -- only floppy. 
Suggestions? 


Re: Windows 98 hard drive help

Keith
 

Hi All,
Windows 98 as far as I can remember came in two parts one floppy disk and one CD.
The floppy was the startup disk.
I think the later versions Windows 98SE may just have been on CD.
The startup disk and the ISO are available on the net.
I understand that there is a floppy disk version on Windows 98 which is/was available from MS but was 39 Disks.
There seem to be plenty of second hand internal IDE CD readers on various websites.
Best of luck,

Keith


Re: Windows 98 hard drive help

Constantine Christophi
 

I had great difficulty in finding the floppy version of Windows 98, the solution I went with was piggybacking an internal CD ROM drive set to slave on the same IDE cable as the hard drive and installing that way. 

Another problem I ran into was the minimum system requirements. RAM was easy (just buy some) but with the CPU I had to override the CPU check with commands:


Re: 3.5 inch floppy drive controller

wild_kow
 

I downloaded Win95 and 98 from the internet, I can't remember what was required to install them. I think there was a setup.exe file, I don't think I had to create an iso image.

John W


From: Emco-CNC-Users@groups.io <Emco-CNC-Users@groups.io> on behalf of atlantis via groups.io <atlantis@...>
Sent: Thursday, August 6, 2020 8:20:11 AM
To: Emco-CNC-Users@groups.io <Emco-CNC-Users@groups.io>
Subject: Re: [Emco-CNC-Users] 3.5 inch floppy drive controller
 
Frankly said I have not followed the whole discussion here, just wanted to throw in that there are diskette drive emulators that convert a floppy drive interface into a usb port. If you get it working at all that might add some comfort.


Re: 3.5 inch floppy drive controller

atlantis@...
 

Frankly said I have not followed the whole discussion here, just wanted to throw in that there are diskette drive emulators that convert a floppy drive interface into a usb port. If you get it working at all that might add some comfort.


Re: Windows 98 hard drive help

atlantis@...
 

I remember installing Windows 95 from a whole bunch of floppy disks back in the day but I don't know if there is still some software available that will create all those floppy disk images from a cd image as there used to be. You may want to find out if you have enough floppy disks, I don't remember exactly how many it took.

I would add two other possiblities to the above list: Install a usb add-on card or an internal cd-rom drive, if the machine has a possibility for either of them they might be easier options. Maybe you could also hook the cd-rom up only temporarily with the machine open for installation. If the machine is pre-usb it should have an ide hard drive interface and to that you should be able to hook up 2 devices per channel normally.


Re: Windows 98 hard drive help

Baschwar@
 

No usb on this machine. 

I have the CF Card Adapter, but imaging the iso didn’t work. 

May have to try the partitioning. I don’t have a boot disk (yet) 

Thanks for the input 

Brad 


On Aug 5, 2020, at 2:14 PM, arjan.dijk <arjan.dijk@...> wrote:


Several options

1. USB could work if available. Maybe need to boot from floppy.
2. Try a CompactFlash card (has the same pinout as ide, only smaller, adapters are cheap) as a harddrive and fill it with the windows setup
3. Try a SD IDE adapter
4, Connect the harddisk to a modern pc with a USB ide adapter, partition the drive and copy the windows setup to a second partition. Still have to boot from a floppy I think



Op wo 5 aug. 2020 om 21:43 schreef Baschwar@ <baschwar@...>:
Can anyone help me get a working Windows98 hard drive set up? 
I have the machine and a drive, but no way to get Windows 98 installed since the computer doesn't have a CDROM -- only floppy. 
Suggestions? 


Re: Windows 98 hard drive help

arjan.dijk
 

Several options

1. USB could work if available. Maybe need to boot from floppy.
2. Try a CompactFlash card (has the same pinout as ide, only smaller, adapters are cheap) as a harddrive and fill it with the windows setup
3. Try a SD IDE adapter
4, Connect the harddisk to a modern pc with a USB ide adapter, partition the drive and copy the windows setup to a second partition. Still have to boot from a floppy I think



Op wo 5 aug. 2020 om 21:43 schreef Baschwar@ <baschwar@...>:

Can anyone help me get a working Windows98 hard drive set up? 
I have the machine and a drive, but no way to get Windows 98 installed since the computer doesn't have a CDROM -- only floppy. 
Suggestions? 


Windows 98 hard drive help

Baschwar@
 

Can anyone help me get a working Windows98 hard drive set up? 
I have the machine and a drive, but no way to get Windows 98 installed since the computer doesn't have a CDROM -- only floppy. 
Suggestions? 


Re: 3.5 inch floppy drive controller

Keith
 

Hi Ron,
Most of the C5 lathes seem to have tape drives.
There is at least one C5 on YouTube with a floppy fitted but that doesn't help a lot.
I have looked on most of the forums and YouTube but there seems to be a shortage of information on the disk drive.
I would love to see the schematic of the interface card but there does not seem to be one about.
As there is a possibility that the interface is an OEM product I have been scouring the internet but have not found anything.
I'm sure that something will turn one day but in the meantime I have a very dead floppy drive.

Keith
 


Re: 3.5 inch floppy drive controller

Ron Bihler
 

I have been following this email chain, I have a T2 control on a VMC100 with a floppy drive.  It has never worked and I am curious if this is a similar system to what you have.  
I ended up taking a microtape drive unit from a backup t2 control I had and have been running that.  I really don't care much for the tapes though and I only have 3 of them.  
I will say I was able to plug the tape drive in and it worked right away.  With that said I also installed the CPU board from the old T2 I got the tape drive from as the main CPU has some bad interface circuits.  Changing both items may be why it worked so easily.  

I do recall the original CPU did say Disk for saving and am pretty sure it now lists tape, but I would need to confirm.  I am not sure if there is an eprom change other than the "Disk/Tape" change.  

I would like to revisit the Disk unit depending on your results.  I will continue to follow and will locate the disk and controller drive this weekend to confirm some of the information on the unit I have.  

Ron


VMC-100 central lubrication intervals

atlantis@...
 

Hi

I am currently retrofitting my VMC-100, it is a slow process but I think I'm getting there.

For the Willy Vogel central lubrication my plan is to turn it into a time-interval lubrication. I'm sure that LinuxCNC can do the same travel-based lubrication that the M2 control does (add up the travel on the guides and turn the pump on for 8 s after every 20 m) but I can still dive into that later if necessary, for the moment I try to keep the fancy programming to a minimum. I have also added a level control that starts beeping if the oil level in the reservoir goes too low, basically every other machine I know does that anyway.

The only thing I wonder is what interval might be appropriate. Has anyone else done it this way and what intervals are you using?

Regards
Martin


Re: 3.5 inch floppy drive controller

Keith
 

Hi JG,
I have uploaded some photos of the Floppy drive and interface card as an album.
The Interface board is marked DE115/2
The Eprom has the following numbers and letters EMCO EXDI or 1 P28311155 /2.32
The board has a label with (3)? 2665 V2.0 WA85094.
The Disc ( disk) drive is a TEAC FD235HF.
The disk drive looks standard but there is a fine wire added which can be seen in the photos.

As you say this interface is probably manufactured by someone other than Emco and then fitted with an Emco EPROM.
I am still looking round the internet to see if I can find anything.
The black electrolytic capacitor is the 16 Volt rail.
There is a small black block marked PJ220 next to this cap and a 4.7 volt Zener diode just in front of the power transistor.
The large blue electrolytic is the 5Volt rail which does not appear.
I will keep on investigating.

Keith


3 photos uploaded #photo-notice

Emco-CNC-Users@groups.io Notification <Emco-CNC-Users@...>
 

The following photos have been uploaded to the 3.5 " Floppy Drive album of the Emco-CNC-Users@groups.io group.

By: Keith


Photo Notifications #photo-notice

Emco-CNC-Users@groups.io Notification <Emco-CNC-Users@...>
 

Keith added the album 3.5 " Floppy Drive: £.5" Floppy Drive and Interface Card


Keith added the album 3.5 " Floppy Drive: 3.5 " Floppy Drive and Interface Card

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