Date   
Re: cheap retrofit with the Allegro UCN5804B chip

keizer.peter <keizer.peter@...>
 

Hello,

I've been busy tonight, and i got it working. Well, not completely.

I've done what i think was good, and when i start up mach, set the pin, step and dir settings my motor's rotate. But only in one direction.

I can't really control it yet.

Anyone with thoughts on this?

It's midnight now. Time for me to sleep.

Take care guys.

Peter.

--- In Emco_cnc_users@..., "keizer.peter" wrote:

Hello Guys,

Time for an update, I've received the chips, so i'm ready to start.
It's great to hear so many positive reactions so far. And i really hope i'll be able to get it work. Even though i'm not really into electronics.

While i'm busy i'll make photo's so the tutorial should be easy to understand lateron.

I'm not really sure if it's a good plan to actually take out the other electrical components. Or just leave them the way they are.

I don't think i need to use the video card again, and some other electronics... But of course, i'm not sure if it's safe to remove them..

I'd like to thank everyone up here so far for helping, sharing idea's and just commenting.

BTW. Here's the link to the ebay store where i've bought my chips. I find them rather cheap at $2.99 each: http://www.ebay.com/itm/1pc-UCN5804B-UCN5804-stepper-motor-driver-ic-DIP-16-/170862478959?pt=US_Amplifier_Parts_Components&hash=item27c832866f

--- In Emco_cnc_users@..., "keizer.peter" wrote:

Hi guys,
While searching for a cheap (an temporary) way to retrofit my F1 (and
maybe also the 5CNC) machines i found this old message here on the
beard:
"Hi
Funny, this seems to be the first post :)
A little background on my experiences.Okay, I own a F1 CNC mill for
about four years now.The native programming for the F1 is in a word
SUX.So, I look around and found the company WelSoft,its
www.welsoft.co.uk and looked at their Wellmillconversion board. Simple
thing methinks, butgodalmighty aint they expensive!!!So, I do a little
research on the way the wellmillconnected to the emco. Having a circuit
diagram forthe F1 helps a lot :)
Lo and behold, I came up with a design that worksfor the past 3 years.
I use Allegro's UCN5804B chips for step/dir control,TurboCNC from DAK
engineering for the Gcode to Step/dir translator,DeskProto for STL to
GCODE translator andSolidworks for design.
If anyone need some help...
Gelandangan."
I have searched in google, i have read basically every message up here
and also the EmcoF1Mill group.But i couldn't find any good explanation
of how to do this.
It seems that it's possible to actually use the Emco stepdriver board
and the original drivers.Then you just hook up the machine to your pc
and use it with Mach3 or whatever and use it like that.
Is there anyone that knows how it works or can be done?
I've already ordered 3 of those chips on ebay, since they're very
cheap.I wasn't sure whether i needed 1 chip per axis, or one chip per
machine.
I hope one of you guys can help me out!
Thanks a lot in advance!
Peter Keizer.
(I'll be posting this same question in the EmcoF1Mill group.If we can
figure out how it works, i'll make a nice tutorial of it so others can
do it as well.)

Re: Emco CAD Cam with new PC?

wilfried
 

--- In Emco_cnc_users@..., "icpms0815" wrote:

I Downloaded the old emco CAD Cam Software from the file section.
With my Compact 5 CNC i use a win xp Laptop.
But the Old DOS Software won't run on xp.
How did you manage it?
Is there an additional tool i need?

Run-time error F6700:Open (pso.lat)

Thanks
It should work when you edit the autoexec.nt.
In my case (XP-Media-Center)
"compact5.exe"
- properties/program/extended
It shows you which autoexec xp uses.
I rem(arked) all modules which are not needed (normally all of them).
The program need nearly all of the available memory

Regards Wolfgang

Re: cheap retrofit with the Allegro UCN5804B chip

keizer.peter <keizer.peter@...>
 

Hello Guys,

Time for an update, I've received the chips, so i'm ready to start.
It's great to hear so many positive reactions so far. And i really hope i'll be able to get it work. Even though i'm not really into electronics.

While i'm busy i'll make photo's so the tutorial should be easy to understand lateron.

I'm not really sure if it's a good plan to actually take out the other electrical components. Or just leave them the way they are.

I don't think i need to use the video card again, and some other electronics... But of course, i'm not sure if it's safe to remove them..

I'd like to thank everyone up here so far for helping, sharing idea's and just commenting.

BTW. Here's the link to the ebay store where i've bought my chips. I find them rather cheap at $2.99 each: http://www.ebay.com/itm/1pc-UCN5804B-UCN5804-stepper-motor-driver-ic-DIP-16-/170862478959?pt=US_Amplifier_Parts_Components&hash=item27c832866f

--- In Emco_cnc_users@..., "keizer.peter" wrote:

Hi guys,
While searching for a cheap (an temporary) way to retrofit my F1 (and
maybe also the 5CNC) machines i found this old message here on the
beard:
"Hi
Funny, this seems to be the first post :)
A little background on my experiences.Okay, I own a F1 CNC mill for
about four years now.The native programming for the F1 is in a word
SUX.So, I look around and found the company WelSoft,its
www.welsoft.co.uk and looked at their Wellmillconversion board. Simple
thing methinks, butgodalmighty aint they expensive!!!So, I do a little
research on the way the wellmillconnected to the emco. Having a circuit
diagram forthe F1 helps a lot :)
Lo and behold, I came up with a design that worksfor the past 3 years.
I use Allegro's UCN5804B chips for step/dir control,TurboCNC from DAK
engineering for the Gcode to Step/dir translator,DeskProto for STL to
GCODE translator andSolidworks for design.
If anyone need some help...
Gelandangan."
I have searched in google, i have read basically every message up here
and also the EmcoF1Mill group.But i couldn't find any good explanation
of how to do this.
It seems that it's possible to actually use the Emco stepdriver board
and the original drivers.Then you just hook up the machine to your pc
and use it with Mach3 or whatever and use it like that.
Is there anyone that knows how it works or can be done?
I've already ordered 3 of those chips on ebay, since they're very
cheap.I wasn't sure whether i needed 1 chip per axis, or one chip per
machine.
I hope one of you guys can help me out!
Thanks a lot in advance!
Peter Keizer.
(I'll be posting this same question in the EmcoF1Mill group.If we can
figure out how it works, i'll make a nice tutorial of it so others can
do it as well.)

Re: cheap retrofit with the Allegro UCN5804B chip

Henk Verschuren
 

An alternative would be the StepGenie IC.

The UCN5804 has open collector ouputs because it is designed to directly drive a stepper motor. Not really ideal for interfacing with the Emco stepper board.

The StepGenie has digital outputs, ideal for connecting directly to the stepper board. It looks like it is still available at www.stepgenie.com.

Henk




--- In Emco_cnc_users@..., "gelandangan" wrote:
>
> Gday all.
>
> It has been a while!
>
> I am flattered that someone still read what I wrote years ago.
>
> Guys, the reason I use the Allegro UCN5804 at the time is that they are available and "cheap" at the time.
> Now, those chip has been discontinued so the price for it is now quite high due to rarity.
>
> On the application, I have used straight through connection from the output of the UCN to the input of the F1 controller. The reason for this is that opto couplers are already installed on the controller board, there is no need to further protect the upstream parts.
>
> Cheers.
> Gelandangan
>

Re: cheap retrofit with the Allegro UCN5804B chip

gelandangan
 

Gday all.

It has been a while!

I am flattered that someone still read what I wrote years ago.

Guys, the reason I use the Allegro UCN5804 at the time is that they are available and "cheap" at the time.
Now, those chip has been discontinued so the price for it is now quite high due to rarity.

On the application, I have used straight through connection from the output of the UCN to the input of the F1 controller. The reason for this is that opto couplers are already installed on the controller board, there is no need to further protect the upstream parts.

Cheers.
Gelandangan

emco compact 5 cnc

gherfi <gherfi_abdelhafid@...>
 

db 25

Re: Mach3 configuration

Picardier <aerodogs@...>
 


     Bonsoir Vincent,
     Non, je n'est pas le soft d'origine. De toute façon, je ne me vois pas revenir au Dos!!!
    J'ai donc shunter le CI de la carte, de façon a passer en direct sur tout soft Dir, Clock.
    Ce qui me gêne c'est le bruit d'enfer en interpolation. Je suis donc repassé avec Ninos nvelle version et aujourd’hui, les déplacement sont hyper fluides. Il me reste assimiller la nouvelle interface V4 tournage, pour conclure a un résultat convenable.
    Cordialement
    Dom80
   

 
Bonjour DOM80, 
Je viens de rentrer un Compact 5PC, je n'ai pas Mach3Turn, mais il y a le soft d'origine dans les Files du groupe.
Est ce que votre tour fonctionne avec le logiciel d'origine ?
Cordialement.
Vincent


From: Picardier
To: Emco_cnc_users@...
Sent: Monday, January 14, 2013 6:14 PM
Subject: [Emco_cnc_users] Mach3 configuration



Bonjour,
Nouveau inscrit sur le groupe, et futur utilisateur de mach3Tournage.
Je recherche, le fichier "mach3Turn.xml" pour Emco 5PC modèle original.
D'avance merci aux membres qui pourraient me soutenir.
Salutations
Dom80





Re: Mach3 configuration

BARRE Vincent <vincent.barre0829@...>
 

Bonjour DOM80, 
Je viens de rentrer un Compact 5PC, je n'ai pas Mach3Turn, mais il y a le soft d'origine dans les Files du groupe.
Est ce que votre tour fonctionne avec le logiciel d'origine ?
Cordialement.
Vincent


From: Picardier <aerodogs@...>
To: Emco_cnc_users@...
Sent: Monday, January 14, 2013 6:14 PM
Subject: [Emco_cnc_users] Mach3 configuration



Bonjour,
Nouveau inscrit sur le groupe, et futur utilisateur de mach3Tournage.
Je recherche, le fichier "mach3Turn.xml" pour Emco 5PC modèle original.
D'avance merci aux membres qui pourraient me soutenir.
Salutations
Dom80




Re: Mach3 configuration

Picardier <aerodogs@...>
 

��� Salut Michel,
�� Oups, c'�tait� le brouillon, erreur d'envoi. De tout fa�on, mon tour beug avec Mach3, en ce moment!!! Les moteurs font un bruit horrible lorsqu'il sont en phase interpolation. c'est peut-�tre ma nouvelle r�install XP3!
�� Du coup ce matin, je remonte ma speedit de chez Ninos, je vais comparer le comportement de la b�cane.
�� Merci pour ton alerte
�� Cordialement
�� Dom80

�

Salut Dom
Tu es sur un site de discussion anglais
Je crois que tu n'auras pas de r�ponse il faut que tu reformule ta question en anglais si tu veux avoir une r�ponse

Le 14 janv. 2013 18:14, "Picardier" <aerodogs@...> a �crit�:
�

Bonjour,
Nouveau inscrit sur le groupe, et futur utilisateur de mach3Tournage.
Je recherche, le fichier "mach3Turn.xml" pour Emco 5PC mod�le original.
D'avance merci aux membres qui pourraient me soutenir.
Salutations
Dom80


Re: Mach3 configuration

Michel BRUWIER
 

Salut Dom
Tu es sur un site de discussion anglais
Je crois que tu n'auras pas de réponse il faut que tu reformule ta question en anglais si tu veux avoir une réponse

Le 14 janv. 2013 18:14, "Picardier" <aerodogs@...> a écrit :
 

Bonjour,
Nouveau inscrit sur le groupe, et futur utilisateur de mach3Tournage.
Je recherche, le fichier "mach3Turn.xml" pour Emco 5PC modèle original.
D'avance merci aux membres qui pourraient me soutenir.
Salutations
Dom80

Mach3 configuration

Picardier <aerodogs@...>
 

Bonjour,
Nouveau inscrit sur le groupe, et futur utilisateur de mach3Tournage.
Je recherche, le fichier "mach3Turn.xml" pour Emco 5PC modèle original.
D'avance merci aux membres qui pourraient me soutenir.
Salutations
Dom80

Re: cheap retrofit with the Allegro UCN5804B chip

vjennuh <e.j.l.bosboom@...>
 

Hello,

This is my first real post here, but Im also planning to control my EMCO CNC to Mach 3. So the EMCO will have to "understand" step and dir signals. I'm planning to do this with a microcontroller connected to the emco stepperboard.
Now I was wondering if it is possible to do half-step in stead of the normal full step control. So instead of AB - aB - ab - Ab will it be possible to do:
AB - B - aB - a - ab - b - Ab - A

I think this would be great to enhance the accuracy of the machine.


Thanks,
Lars

--- In Emco_cnc_users@..., "cncwannabe" wrote:

Hi Henk,

That is a neat solution. Thanks for the link.

Best regards,
Walt


--- In Emco_cnc_users@..., "Henk" wrote:

Hi Walt,

Now I think you don´t need a UCN5804B at all.
Checking out this project: www.stmental.net/~dfoster/emco
I must conclude that the EMC2
software is capable of generating "A B" signals through the parallel
printer port. These guys made a simple circuit that inverts these
signals so now they have "A B !A !B" signals that can be connected
directly to the stepper board.

You would only need a UCN5804B (or a self programmed micro controller)
if the software can only generate Step/Dir signals.

Kind regards,
Henk



--- In Emco_cnc_users@..., "cncwannabe" wrote:

Thanks Henk. That's good to know. I was too lazy to drag the control
unit away from the wall and check.

I would put the UCN5804B right at the connector because I think the
circuit is at risk to be noise sensitive. I also think opto isolated
step and direction signals would be required.

I was surprised how expensive the UCN5804B is on Ebay. I think I'll
post a schematic of how this function can be done with discrete logic.

Best regards,
Walt


--- In Emco_cnc_users@..., "c5cnc" wrote:

Hi Walt,

The ABCD inputs of the stepper board go directly to an onboard
74LS38.
So there are no pull-up nor pull-down resistors.
Therefor a UCN5804B can be connected directly to the stepper board,
although you could consider decoupling with opto-couplers.

Kind regards,
Henk


--- In Emco_cnc_users@..., "cncwannabe" wrote:




Peter,

You should be able to find schematics in the files section of this
or
the F1 group. I'll summarize what you will find.

There is a six pin connector for each axis on the F1 Stepmotor
board.
They are designated X34, X35, and X36. The pin #'s and labels for
each
axis are:

Pin Signal
1 5V
2 GND
3 C
4 D
5 A
6 B

The ABCD signals match the UCN5804B data sheet.

You may need to add 5V pull-up resistors to the outputs of the
UCN5804B. I don't know if the Stepmotor board provides them.
Hopefully
it doesn't have pull-downs. You may also need to provide an
intermediate buffer (CMOS inverters would do) to provide some noise
margin due to the Darlington transistor outputs of the Allegro part.
You want the logic zero output to be well below 0.8V.

The EMCO system uses the "two-phase drive sequence" described in
the
data sheet.

Good luck with your conversion.

Walt




--- In Emco_cnc_users@..., "keizer.peter" wrote:

Hi guys,
While searching for a cheap (an temporary) way to retrofit my F1
(and
maybe also the 5CNC) machines i found this old message here on
the
beard:
"Hi
Funny, this seems to be the first post :)
A little background on my experiences.Okay, I own a F1 CNC mill
for
about four years now.The native programming for the F1 is in a
word
SUX.So, I look around and found the company WelSoft,its
www.welsoft.co.uk and looked at their Wellmillconversion board.
Simple
thing methinks, butgodalmighty aint they expensive!!!So, I do a
little
research on the way the wellmillconnected to the emco. Having a
circuit
diagram forthe F1 helps a lot :)
Lo and behold, I came up with a design that worksfor the past 3
years.
I use Allegro's UCN5804B chips for step/dir control,TurboCNC
from
DAK
engineering for the Gcode to Step/dir translator,DeskProto for
STL
to
GCODE translator andSolidworks for design.
If anyone need some help...
Gelandangan."
I have searched in google, i have read basically every message
up
here
and also the EmcoF1Mill group.But i couldn't find any good
explanation
of how to do this.
It seems that it's possible to actually use the Emco stepdriver
board
and the original drivers.Then you just hook up the machine to
your
pc
and use it with Mach3 or whatever and use it like that.
Is there anyone that knows how it works or can be done?
I've already ordered 3 of those chips on ebay, since they're
very
cheap.I wasn't sure whether i needed 1 chip per axis, or one
chip
per
machine.
I hope one of you guys can help me out!
Thanks a lot in advance!
Peter Keizer.
(I'll be posting this same question in the EmcoF1Mill group.If
we
can
figure out how it works, i'll make a nice tutorial of it so
others
can
do it as well.)

Re: Welturn Software

Vesa Korhonen
 

Hi fellow Emco users,

Have you tried the following link for the WelTurn / WelMill / WelEdit software:

http://web.archive.org/web/20070530001418/http://www.welsoft.co.uk/download.html

I haven't been able to check if these versions work with your machines, as I still use the original versions on my Compact 5 CNC lathe and F1 CNC mill. Eventually they'll be converted to Mach3 / LinuxCNC / PlanetCNC controls with servos. But from the Wayback Machine the old Welsoft programs seem still to be available.


Cheers,

Vesa (from Finland)

--- In Emco_cnc_users@..., "adan333" wrote:

I think a few of us are in the same boat. I would like to get a copy as well. I did receive a floppy disk with my lathe. but up till now i dont have the ability to read a floppy drive.
thanks
adam


--- In Emco_cnc_users@..., "iain" wrote:

I have the original welturn software on hard drive but old laptop only has floppy drive so im not sure i can get it off.

Id also appreciate a copy of latest welturn, I have asked welsoft about getting it through them but they have stopped even replying to emails now.



--- In Emco_cnc_users@..., "nz_dgraham" wrote:

Hi Henk-Jan
I take it that it is to big to just email to me. If possible, would you be able to upload it to a file sharing site, so that i can download it of that, such as rapidshare.

Thank you,
David Graham

--- In Emco_cnc_users@..., henk-jan postema wrote:

Hi David,
 
I'm a user of the welturn and welmill software and it seems to work ok. I do have the compact 5 pc. The software-cd includes the program for the compact 5 pc and compact 5 cnc. The only thing that I don't know is how everything works with the toolchanger cause the 5 pc doesn't have one. I can provide you the software but have to figure out how I can deliver it to you.
 
see you Henk-Jan.

--- On Thu, 5/17/12, nz_dgraham wrote:


From: nz_dgraham
Subject: [Emco_cnc_users] Welturn Software
To: Emco_cnc_users@...
Date: Thursday, May 17, 2012, 1:06 PM



 



Hi everyone.

Does anyone have a copy of the Welturn software that they could email to me, as it seems that i have lost the software, however I have the upgrade card so I need to software to run the lathe.
I have tried emailing Welsoft, but have yet to get a reply.

Thanks,
David

Re: Turret working but...

mustgofast2002 <m.wg@...>
 

Hi Mike

Some time ago someone had milled a groove in the saddle to allow an extended tool to pass over when rotating the turret, they said there was ample material but check for yourself, it may solve your problem.

--- In Emco_cnc_users@..., Mike Sharp wrote:

Hi,

I'm really happy to say that the tool turret on my C5 is working again. Thank
you for the replacement motor Robert.

However... I've now come to the realization that there doesn't seem to be any
orientation of an SVJB tool holder that doesn't crash or have a portion of the
insert recessed back into the turret's clamp.


Am I missing something here? Please tell me that I'm wrong and that I don't
have to resort to hand grinding cutters so I can get a 35 point (or sharper!)
that won't crash when I rotate the turret.

--Mike

Re: cheap retrofit with the Allegro UCN5804B chip

mustgofast2002 <m.wg@...>
 

Hi Orin

That conversion is for the Emco "5 PC" machine, not the "Compact 5 CNC"

--- In Emco_cnc_users@..., "Orin" wrote:

This may be too simple for your needs but the conversion found at the link below works and can be done in less than an hour - with a coffee break included....

http://finance.groups.yahoo.com/group/Emco_cnc_users/files/5PC%20-%20Conversion%20to%20MACH3/

Works with MACH3 and I would think EMC as well.

Orin

Turret working but...

Mike Sharp
 

Hi,

I'm really happy to say that the tool turret on my C5 is working again.   Thank you for the replacement motor Robert.

However...  I've now come to the realization that there doesn't seem to be any orientation of an SVJB tool holder that doesn't crash or have a portion of the insert recessed back into the turret's clamp. 

Am I missing something here?  Please tell me that I'm wrong and that I don't have to resort to hand grinding cutters so I can get a 35 point (or sharper!) that won't crash when I rotate the turret.

  --Mike


Re: cheap retrofit with the Allegro UCN5804B chip

Orin
 

This may be too simple for your needs but the conversion found at the link below works and can be done in less than an hour - with a coffee break included....

http://finance.groups.yahoo.com/group/Emco_cnc_users/files/5PC%20-%20Conversion%20to%20MACH3/

Works with MACH3 and I would think EMC as well.

Orin

Re: Emco CAD Cam with new PC?

Henk Verschuren
 

Hi Cam,

I didn't try myself, but according to the messages DOSOX will run under WIN7 (32 and 64 bit).

I am using the Emco Basis CADCAM that you will find in the files section: FILES >
'Emco compact 5 cnc lathe' > '5CNC.ZIP'.
Speed is not really an issue I think. Any computer will be much faster then the 'original' ones.

One of the users hacked the program so it can send files at 9600 baud (in stead of 300). I didn't try it yet though.

Regards,
Henk


--- In Emco_cnc_users@..., "Cam Sparrow" wrote:
>
> Hello Henk , Cam Sparrow here from Sydney AUSTRALIA...
>
> Which EMCO Compact 5 software version are you using??
>
> I am keen to run the Compact software on a faster computer (or any other
> computer really) I currently have a stand alone Pentium running dos version
> 6.22.
>
>
>
> Will DOS BOX install to current Windows 7 OS??
>
> Thanks,
>
> Cam.
>
>
>
> From: Emco_cnc_users@... [mailto:Emco_cnc_users@...]
> On Behalf Of Henk
> Sent: Wednesday, 9 January 2013 7:18 AM
> To: Emco_cnc_users@...
> Subject: [Emco_cnc_users] Re: Emco CAD Cam with new PC?
>
>
>
>
>
> I run the Emco CADCAM on Windows XP using DOSBOX 0.74.
>
> Works flawless.
>
> Henk
>
>
> --- In Emco_cnc_users@..., "icpms0815" wrote:
> >
> > I Downloaded the old emco CAD Cam Software from the file section.
> > With my Compact 5 CNC i use a win xp Laptop.
> > But the Old DOS Software won't run on xp.
> > How did you manage it?
> > Is there an additional tool i need?
> >
> > Run-time error F6700:Open (pso.lat)
> >
> > Thanks
> >
>
>
>
> _____
>
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2013.0.2805 / Virus Database: 2637/6017 - Release Date: 01/07/13
>
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2013.0.2805 / Virus Database: 2637/6017 - Release Date: 01/07/13
>

Re: cheap retrofit with the Allegro UCN5804B chip

cncwannabe
 

Hi Henk,

That is a neat solution. Thanks for the link.

Best regards,
Walt

--- In Emco_cnc_users@..., "Henk" wrote:

Hi Walt,

Now I think you don´t need a UCN5804B at all.
Checking out this project: www.stmental.net/~dfoster/emco
I must conclude that the EMC2
software is capable of generating "A B" signals through the parallel
printer port. These guys made a simple circuit that inverts these
signals so now they have "A B !A !B" signals that can be connected
directly to the stepper board.

You would only need a UCN5804B (or a self programmed micro controller)
if the software can only generate Step/Dir signals.

Kind regards,
Henk



--- In Emco_cnc_users@..., "cncwannabe" wrote:

Thanks Henk. That's good to know. I was too lazy to drag the control
unit away from the wall and check.

I would put the UCN5804B right at the connector because I think the
circuit is at risk to be noise sensitive. I also think opto isolated
step and direction signals would be required.

I was surprised how expensive the UCN5804B is on Ebay. I think I'll
post a schematic of how this function can be done with discrete logic.

Best regards,
Walt


--- In Emco_cnc_users@..., "c5cnc" wrote:

Hi Walt,

The ABCD inputs of the stepper board go directly to an onboard
74LS38.
So there are no pull-up nor pull-down resistors.
Therefor a UCN5804B can be connected directly to the stepper board,
although you could consider decoupling with opto-couplers.

Kind regards,
Henk


--- In Emco_cnc_users@..., "cncwannabe" wrote:




Peter,

You should be able to find schematics in the files section of this
or
the F1 group. I'll summarize what you will find.

There is a six pin connector for each axis on the F1 Stepmotor
board.
They are designated X34, X35, and X36. The pin #'s and labels for
each
axis are:

Pin Signal
1 5V
2 GND
3 C
4 D
5 A
6 B

The ABCD signals match the UCN5804B data sheet.

You may need to add 5V pull-up resistors to the outputs of the
UCN5804B. I don't know if the Stepmotor board provides them.
Hopefully
it doesn't have pull-downs. You may also need to provide an
intermediate buffer (CMOS inverters would do) to provide some noise
margin due to the Darlington transistor outputs of the Allegro part.
You want the logic zero output to be well below 0.8V.

The EMCO system uses the "two-phase drive sequence" described in
the
data sheet.

Good luck with your conversion.

Walt




--- In Emco_cnc_users@..., "keizer.peter" wrote:

Hi guys,
While searching for a cheap (an temporary) way to retrofit my F1
(and
maybe also the 5CNC) machines i found this old message here on
the
beard:
"Hi
Funny, this seems to be the first post :)
A little background on my experiences.Okay, I own a F1 CNC mill
for
about four years now.The native programming for the F1 is in a
word
SUX.So, I look around and found the company WelSoft,its
www.welsoft.co.uk and looked at their Wellmillconversion board.
Simple
thing methinks, butgodalmighty aint they expensive!!!So, I do a
little
research on the way the wellmillconnected to the emco. Having a
circuit
diagram forthe F1 helps a lot :)
Lo and behold, I came up with a design that worksfor the past 3
years.
I use Allegro's UCN5804B chips for step/dir control,TurboCNC
from
DAK
engineering for the Gcode to Step/dir translator,DeskProto for
STL
to
GCODE translator andSolidworks for design.
If anyone need some help...
Gelandangan."
I have searched in google, i have read basically every message
up
here
and also the EmcoF1Mill group.But i couldn't find any good
explanation
of how to do this.
It seems that it's possible to actually use the Emco stepdriver
board
and the original drivers.Then you just hook up the machine to
your
pc
and use it with Mach3 or whatever and use it like that.
Is there anyone that knows how it works or can be done?
I've already ordered 3 of those chips on ebay, since they're
very
cheap.I wasn't sure whether i needed 1 chip per axis, or one
chip
per
machine.
I hope one of you guys can help me out!
Thanks a lot in advance!
Peter Keizer.
(I'll be posting this same question in the EmcoF1Mill group.If
we
can
figure out how it works, i'll make a nice tutorial of it so
others
can
do it as well.)

Re: Emco CAD Cam with new PC?

Cam Sparrow
 

Hello Henk , Cam Sparrow here from Sydney AUSTRALIA...

Which EMCO Compact 5  software version are you using??

I am keen to run the Compact software on a faster computer (or any other computer really) I currently have a stand alone Pentium running dos version 6.22.

 

Will DOS BOX install to current Windows 7 OS??

Thanks,

Cam.

 

From: Emco_cnc_users@... [mailto:Emco_cnc_users@...] On Behalf Of Henk
Sent: Wednesday, 9 January 2013 7:18 AM
To: Emco_cnc_users@...
Subject: [Emco_cnc_users] Re: Emco CAD Cam with new PC?

 

 

I run the Emco CADCAM on Windows XP using DOSBOX 0.74.

Works flawless.

Henk


--- In Emco_cnc_users@..., "icpms0815" wrote:
>
> I Downloaded the old emco CAD Cam Software from the file section.
> With my Compact 5 CNC i use a win xp Laptop.
> But the Old DOS Software won't run on xp.
> How did you manage it?
> Is there an additional tool i need?
>
> Run-time error F6700:Open (pso.lat)
>
> Thanks
>


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Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/6017 - Release Date: 01/07/13