Date   
Re: PC 55 mill

tedswef@...
 

Thanks f1pmiller, you've certainly pointed me in the right direction and given me plenty to think about, I need to assess just what I have with my mill, there's no separate pc with it so I think we can assume that the card and connecting cable are required as a minimum. It maybe that the machine will operate directly from the digitizer whilst I try to source the card etc. Again thanks for your help, hopefully I'll have further information soon and you can possibly grant me more words of wisdom!!!!!!!!!!

Thanks

Phil 

Re: PC 55 mill

f1pmiller
 

Phil they use WinCam  ,you can import DXF files from AutoCAD or any cad package I assume and it will generate the code. WinCam has a cad component but it is rather ....um....basic . WinCam should be available by now somewhere on the net if its not already installed on your machine pc.

Its really important to learn to write your own g-code for your specific machine at first and for most simple 2d parts I find its faster than jumping through a cam program, it will also help you learn all the different codes available and help fix or modify cam generated code later. You can do some rather intricate 2d parts in few hundred lines of code or less using canned cycles etc. I'll still write a couple thousand lines of 2d code if im in a good mood to do so but for 3d stuff its all cam generated. My machines are older and require a few more hoops and programs to jump through to get it done.

Re: PC 55 mill

tedswef@...
 


Again thank you for the info, I'm more than happy to stick with the original Emco control if I can, as I said the need for conversion has been a misconception on my part. I'll try to locate a card as suggested, the machine has a separate digitizer pad which I guess will allow programing but I'll need the card to run the CAD/CAM soft ware, is there any particular software that these machines require? I know Wincam was installed in some. I use AutoCAD Lt as my design media and would ideally like a package to mediate between  this and the mill.

Thanks

Phil

Re: PC 55 mill

f1pmiller
 



Phil I have 3 different Emco's , an F1 , F1P and a VMC100 all using the factory controls, everyday. The F1 came out of a large machine shop 13 yrs ago and has worked almost everyday since with a few common F1 repairs made over the years, I have an additional Welmill converted control for it that I use for 3d surfacing. The F1P was bought dead and it took a few years to gather up the M1 control parts to fix it but it is an amazing machine for its size and well worth the wait. The VMC100and TM02 control are like new and came out of school, hardly used at all. Emco's can be fixed ,parts are available most often on ebay, the 55 parts are more common now than they were. Factory support has sunsetted on these for the most part but there is plenty of help and owners out there. They are robust well made machines and worth the effort to repair if needed. A local friend of mine has a 55 if you need me check anything out or compare I'd be happy to, I don't recall his having a dongle as such but you have to have the emco RS card installed in the pc .If you have to spend big bucks for the RS card its worth it compared to a conversion.If it helps my friend had no formal training in cad /cam and with minimal help from me at times he was able to write his own programs and make nice parts in a very short time.

A good source for 55 info and parts would be Andrew at  www.Manus.biz , my friend bought his 55 mill and a 55 lathe there, Andrew knows those machines well.

Gmaxton on ebay regularly has parts for them listed also. 

Re: PC 55 mill

tedswef@...
 

Thank you both for the advice, I'm in the very early stages of researching what is required to run these machines, having read much about the lack of support for the smaller Denford and Emco machines (unless you're an educational establishment) I have been of the impression that few machines work as originally intended because various parts are missing or the software is obsolete, thus the conversion is required. Maybe I have jumped the gun a little in asking about the conversion process, I know the dongle is missing from this machine and presumed that this item is a way of maintaining the license agreement. I will hopefully get chance to remove the back cover of the machine at the weekend  and see what's missing or not. If there's a way to use the original equipment then I'm fine with that. Please excuse me if I've misunderstood the function of the dongle and my impression that the machine will only work with the original software, as I say I'm just finding my feet at the moment and all explanations are gratefully received.

Regards

Phil

Re: VFD for Emco Compact 5

Croonen
 

Hello Nikos

the power supply you have send you can use for the motor , But I don't know of the pwm board gone work on it.

greetings Benny


2014-05-21 18:12 GMT+02:00 nikos_zou@... [Emco_cnc_users] <Emco_cnc_users@...>:

 

Hello Benny, 

How are you? Unfortunatelly, my spindle pcb board is still out of work...so i was wondering if there is an other device which is suitable for our porpuse...could you please take a look at the device which is described at the following link and tell me your opinion???

I have changed a lot of components of the pcb but it doesn't work. the last attempt will be to change the IC chips. Do you think it is possible to find the same board??

HX-PWM AC180V-260V to DC0-220V 4A 500W DC Motor Speed Controller Adjuster Driver
HX-PWM AC180V-260V to DC0-220V 4A 500W DC Mot...
US $39.96 New in Business & Industrial, Electrical & Test Equipment, Industrial Automation, Control
Preview by Yahoo

 

 thank you in advance!!
Greeting Nikolas
 


Re: Compact 5 pc

Michael
 

I don't know if you figured this out yet or not ,I didn't catch this when you first posted this. I did this and it worked fine but the article has the figure numbers sort of messed up. I have the orginal Digital Machinist article and its wrong too. The figure 4 the texst refers to is actually figure 2 and what the text refers to as figure 2 is really figure 1. This cause a little head scratching when I did it too. Setting up as per the article got me up and running just as he said to configure it. It seems like I had to play around with the motor tuning a little to improve it but it did work. One probem that I had is that you can plug  some of the wires back into control board one terinal off this caused me to send a week trying to get the index to work! The motors will heat up just sitting there with the EMCO drivers and motors. Does the spindle motor switches work right ? if it springs back it would mean that you're in and emergeny stop which is another can of worms. I've since converted mine over to Geko drives and modern steppers so I can't just go look at my set-up any more .I you are still having this problem let me know and maybe I can find my notes and see if there was some trick that I forgot about. 

Mike

Re: VFD for Emco Compact 5

nikos_zou@...
 

Hello Benny, 
How are you? Unfortunatelly, my spindle pcb board is still out of work...so i was wondering if there is an other device which is suitable for our porpuse...could you please take a look at the device which is described at the following link and tell me your opinion???

I have changed a lot of components of the pcb but it doesn't work. the last attempt will be to change the IC chips. Do you think it is possible to find the same board??

HX-PWM AC180V-260V to DC0-220V 4A 500W DC Motor Speed Controller Adjuster Driver

 

 thank you in advance!!
Greeting Nikolas
 

Re: PC 55 mill

Richard <2rn@...>
 

F1Pmiller, I couldn't agree with you more. I own an EMCO F1 CNC mill for 1.1/2 years now and last week I got lucky and bought an EMCO Compact 5 CNC lathe. Both came with the original EMCO control units and they work great just as they are. I make many party and tools with them for my RC hobby. I use a laptop for storing and loading the NC programs in the machines, using a DIN plug RS232 --> USB cable and RCLink software. The latter is no more than a TXT editor and controls the laptops data transmission to the machines. I love these EMCO CNC machines just as they are‎.
Best regards, Richard

Verzonden vanaf mijn BlackBerry 10-smartphone.
Van: f1pmiller@... [Emco_cnc_users]
Verzonden: dinsdag 20 mei 2014 21:25
Aan: Emco_cnc_users@...
Beantwoorden: Emco_cnc_users@...
Onderwerp: [Emco_cnc_users] Re: PC 55 mill

 

Phil if the factory control is working a conversion would be a downgrade in my opinion, it will make great parts as is. The Emco control is solid and the 55 is 3 axis out of the box. The only reason to convert one of these is a 4th axis control, if your just starting out with programming I'd use it for awhile until your comfortable and know more about what you need, a lot of folks think they need 4th axis and wind up not. If you want to make parts keep the factory control, a conversion is not going to be as reliable as the factory control, unless your better at building machines than Emco :)

 


Re: PC 55 mill

f1pmiller
 

Phil if the factory control is working a conversion would be a downgrade in my opinion, it will make great parts as is. The Emco control is solid and the 55 is 3 axis out of the box. The only reason to convert one of these is a 4th axis control, if your just starting out with programming I'd use it for awhile until your comfortable and know more about what you need, a lot of folks think they need 4th axis and wind up not. If you want to make parts keep the factory control, a conversion is not going to be as reliable as the factory control, unless your better at building machines than Emco :)

 

PC 55 mill

tedswef@...
 

Hi There

I've joined this forum as I've just acquired a PC 55 mill, I intend to carry out a conversion on it so that I can use mach 3 or similar. I've seen conflicting reports on the internet, some saying the conversion was the easiest they've ever done on some seem to encounter problems. Has anyone got a tried and tested conversion that is easy to carry out? I'm happy to buy whatever hardware I need but would like to make sure everything that I get is compatible. My background is mechanical, I'm ok with basic control and electrics but certainly not ec&i, I'm not great with programming and configuring computers either.

A step by step guide to a tried and tested conversion would be great, and all help much appreciated.

Thanks

Phil

Re: Compact 5 pc

cjlear
 

On 23/04/2014 6:20 PM, brent48@... wrote:
 

Hi guys I've followed the instructions for modifying my pc 5 to work with mach 3. So far only getting the motors to warm but no movement. Anybody got any ideas? I see the software upgrade article by Jerry Gold refers to figure 4 but it does not show it.... could that be the problem. I'm even toying with the idea of trashing the entire guts and doing a complete rewire because to be honest this thing is frustrating the hell out of me. If anyone can help please contact me I would really appreciate any help I can get, I really want to get this thing going but I'm running out of ideas of what to do.

Hi Brent, I think I got to the same point you did before throwing in the towel and going to LinuxCNC.

I've been in the computer industry for 30+ years and into machinery even longer, yet I'm reduced to sitting there looking at the machine and the monitor going "WTF is this!?  Why doesn't it work?"

I think google and youtube could be your friends here, also check some of the photos in the archives of this group.

I haven't touched my setup for about three months as I've been working and overseas (hence the late reply), so I too will be going back to first principles when I start again.  I'd got to the point where I could use the arrow keys for X/Z movement, and hand-coded a little program to take successive cuts off a bar.  I counted that as a major achievement!

Obviously there are a number of people who could walk up to it, say "Oh, one of these!" and press a few keys and it will all be working.  Unfortunately one hasn't appeared in my life despite rubbing my Aladdin's lamp almost through.


Regards
 Charlie

Re: compact 5: advance motor "humming"

fredoavelo
 

hi
maybe you can buy a cheap XPROTOLAB it's a very small osciloscope 200kHz bandwith, 5 volt power needed and 20V max input voltage for nearly 40 buks but enougth for this job i think

Re: compact 5: advance motor "humming"

bastiensphoto@...
 

I do not have access to an oscilloscope ... i have used them a lot, but dont have one (im looking for a decent used one ...)
i have not verified the consistency between channels
i know have access to a working stepper the time of my repair which should make my work a lot easier :)

Re: spare parts

Croonen
 

for emergency stop switch you can put in from every other brand name, the key for to switch the motor auto are manual I have I think 2 pieces.

greetings Benny

Re: spare parts

Toschr <Toschr@...>
 

I have some of these parts if you are still looking

 

 

Robert T. Tosch CMfgE

CNC CAD/CAM Instructor
Alpena Community College
(989) 358-7421

 

From: Emco_cnc_users@... [mailto:Emco_cnc_users@...] On Behalf Of gregory.busick@...
Sent: Tuesday, May 06, 2014 10:19 PM
To: Emco_cnc_users@...
Subject: [Emco_cnc_users] spare parts

 

 

I recently purchased a used Emco Compact 5 CNC Lathe. It is missing the following items:

Keys for lathe motor and main unit.

Emergency stop switch

Tail stock

Can anyone provide these?  Thank you.

 

Best regards, Greg

Re: compact 5: advance motor "humming"

cncwannabe
 

Have you verified consistency between channels at the outputs of the opto's?  If so, do you have access to an oscilloscope?

Re: compact 5: advance motor "humming"

bastiensphoto@...
 

X34 and X35 match ...
it seem like i get matching signal on the entire board ... could a capacitor be bad?
if so, how can i identify it?

thanks cncwanabe for your idea of testing X34 and X35
i worked on the board from top to bottom, now i need to restart and work from bottom to top ...

Re: compact 5: advance motor "humming"

cncwannabe
 

You could try to produce a schematic by following the pcb traces to refine your troubleshooting.  Posting it would generate suggestions as to where to look.

You could also take advantage of the fact that you have a working axis with identical circuitry.  Start at the input connectors X34 and X35 and compare signals while moving each axis one step at a time.  Monitoring with a scope or logic analyzer would be ideal but it could be done with a DMM.  It is possible that the problem is on the computer board.  Matching the X34 and X35 signals give you immediate direction.

Matching signals on the connectors would tell you the problem is on the Step Motor Board.  Trace the signals to the next device.  There may be a wrinkle because the chips are multi gate devices and connections may not match between channels.  You should search for the part data sheets to understand the connection differences between axes (if any).  The data sheets will show you the chip outputs you need to look at for the next stage comparison.

Move forward through the chips until the signals don't match.  You may want to start testing with the power plug at X33 disconnected.  The front end circuitry gets its power from X34 and X35 and motor power isn't needed until you get past the opto's and into the transistor circuits.

Good luck,

Walt






spare parts

 

I recently purchased a used Emco Compact 5 CNC Lathe. It is missing the following items:

Keys for lathe motor and main unit.

Emergency stop switch

Tail stock

Can anyone provide these?  Thank you.


Best regards, Greg