Topics

1

General Mach Discussion / AC DRIVE ISSUES.

« on: December 10, 2018, 02:32:32 PM »

Hi All

I am in the process of completing a cnc retrofit using Schneider Lexium 28 drives and BCH2 motors. I am now on my third drive that has totally given up for no known reason. I have as far as I am aware wired the drives correctly but I am no expert by any means when it comes to electronics. Would anyone be kind enough to take a look at the schematic and advise where the issue may be in my wiring. I don't believe this is a drive issue as its happened three times.
I can post the manuals or just screenshots if required.

Thanks
Mick 

2

General Mach Discussion / Spindle/ C Axis using CSMIO/IP-A

« on: October 12, 2018, 06:26:50 AM »

Hi All

Recently started a conversion using the CSMIO/IP-A on a Denford Senior lathe. With the help of people on this forum made huge progress and now have the X an Z-axis working perfectly using Lexium 28 servos and drives.

The original spindle motor is connected to the CSMIO and also works well as it should.

I would like to have a combined spindle/ C axis in order to facilitate some live tooling in the future. My plan is to fit a new Lexium servo motor and drive to power the spindle. (Appropriate size not yet decided)

I have successfully wired the X and Z axis using the analog +/- 10v and also have the VFD working using the 0 to 10v speed command on the spindle.     

Can anyone advise on how this would be configured and connected to the CSMIO so I can switch between Spindle and C axis? 

Mick
 

3

General Mach Discussion / Spindle Encoder Wiring.

« on: July 22, 2018, 01:52:42 PM »

Hi All

Just in the middle or should I say the start of a conversion on my Denford Senior Lathe. I am using all the original Servos and drives as well as the original spindle motor. The VFD has been replaced with a Jaguar VXM. Had loads of help so far from the forum with tuning the servos and pleased with what has been achieved so far.

Moving onto the spindle. The spindle motor is wired up to the VFD with no major issues at the moment and working off a 0 to 10v signal. I am using the CSMIO/P-A controller with the add-on CSMIO/P-CNC for threading and spindle control. The encoder for the spindle has eight wires coming out the same as the X and Z axis but there is no information on the encoder. The wire colours are all the same as the X and Z encoders.

The X and Z encoders give this information.

A+ Brown
A- Yellow O
B+ Red
B- Green
Z+ Purple
Z- Blue Pin
5VDC White
GND Black

As the spindle encoder is the original to the machine the same as the X and Z Encoders. Would it be safe to assume I should wire the encoder with the above connections?

Or is there a way to check the wires from the spindle encoder to ensure correct connections. (With a multimeter)?

Appreciate any feedback.

Mick

4

General Mach Discussion / CS Labs CSMIO/P-A

« on: July 12, 2018, 02:48:23 PM »

Hi All

Just started a conversion using the CS LABS CSMIO/P-A controller on my Denford Senior Lathe. I am using the original Sem Servo Motors and Dc Drives. Just trying to wire up the one axis at the moment and not sure whether or not you have to supply 10v to the Analog I/0 connector or does the controller deal with this internally. There is a 10v connection point but unsure if this is necessary.
I can upload the manual or email it.

Thanks
Mick   

5

General Mach Discussion / Servos vs Hybrid Steppers with CS labs controller

« on: October 03, 2017, 01:48:37 PM »

Hi All

Looking for some advice regarding keeping original servos and doing a total upgrade and using Leadshine servo steppers. I have a Denford Senior which has a fanuc ot control. A fault occurred about a year ago but never got to the bottom of it. Decided to do something with it now. Don't really want to throw money at such an old control system.

Considering two options : Option 1 keep the original Sem Mt30 Servos along with the Norwin 2110 drives and use a CS Labs CSMIO/IP-A capable of 0 to 10v for the drives.
                                     Option 2 Try and sell the servos and drives and use appropriate Leadshine Servo stepper motors along with a CS labs CSMIO/IP-M.

Seen some good reviews on the forum about Cs Labs products and would really appreciate any comments.

Many Thanks
Mick


        

6

General Mach Discussion / Dc servo motors

« on: December 24, 2016, 02:58:35 AM »

Would like to do a Mach3 conversion on my Denford Senior Lathe. I have the original Sem MT30 servo motors and Norwin 2110 servo drives. Is it possible to use these motors and drives with Mach3.
If so what would be the best motion control board and breakout board to use.   
I have attached a couple of screenshots if this helps.

Appreciate any help.

7

General Mach Discussion / Controlling coolant pump using mach3

« on: March 22, 2015, 06:54:43 AM »

Hi All
Can anyone please give me some help with this?
I am trying to power a coolant pump using mach3 from a my 5 axis breakout board.
This is what I have done: I have checked flood mist coolant outputs 3 and 4 in spindle set up and enabled them in outputs to pin 5.
I have wired a small 5v relay to pin 5 and grd.(The relay is a Songle srd 5vdc).
When I command coolant from Mach screen the light illuminates on the 5v relay but the relay does not close.
At first I thought it was because I was using the usb cable from the pc to power the board not producing enough current, so I have now fitted a 5vdc power supply to power the breakout board.
It is still the same. I have checked power to the relay and there is about 6-7 volts there but it will not close the relay. If I put power directly to the relay it closes as it should.

I am presuming that the breakout board is restricting the current?? 

I have attached a copy of the manual for the breakout board I am using although it is very limited.

Any help would be great and appreciated.

Mick 

8

General Mach Discussion / RADIUS TO END OF ARC DIFFERS FROM RADIUS TO START

« on: January 31, 2015, 12:56:22 PM »

Hi
Not completely new here but was wondering if anyone can help me out with this problem.
Recently purchased Bobcad which is great very pleased. Having a problem with the Arc feature when posting to Mach3. I keep getting an error (RADIUS TO END OF ARC DIFFERS FROM RADIUS TO START).
I scanned the forums and noticed a few people had the same problem but not using Bobcad. I have tried in gen config changing from absolute to inc mode and various other things as suggested but still keep getting the same error.
Any thoughts anyone?

Thanks
Mick 

9

General Mach Discussion / Need cadcam software

« on: November 22, 2014, 03:59:08 AM »

Hi There

I am a bit new to cnc and I have 90% completed a boxford lathe conversion to mach3. Does anyone have any links to any free lathe cadcam software. I am using NFS turn at the moment which is a great program but when I start building a program and make a mistake, deleting the last operation deletes the whole file. I can retrieve the file from Newprogram.tap and reload it but its annoying and time consuming.
Any suggestions would be great.

Mick       

10

General Mach Discussion / Tool Offsets

« on: November 15, 2014, 02:25:48 PM »

Hi everyone

Can anyone please shed some light on tool offsets for me. I have a boxford slant bed lathe with a 8 station tool turret. I have finally got the tool change operation working right thanks to a lot of help from "Hood". My machine has a home switch on all three axis. What I am struggling to understand is the Z offset. With most tools on the X axis you can slowly Jog down to a work piece and touch off to get the offset. With the Z axis how do you position it to be 100% accurate. With some tools it's easy to touch the face of a work piece but with a lot of tools EG (Left and right hand tools, threading tools, tools with large radius) I can't see how you would do this accurately.

Please excuse me if this is a silly question but I am new to cnc and learning all the time. I would really appreciate any help.

Cheers
Mick