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Messages - LesR

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1
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: May 01, 2020, 04:11:19 AM »
I had some issues with power when I first got my machine.
The earth leakage breaker didn't like it, I tried a 300mA breaker instead of the 30mA but it still wasn't happy so it has a straight supply via a 32 amp breaker now and is fine.
When you first turn it on there is quite a power surge.

With no drip feed a TNC wouldn't be much use, though it costs nothing to list it and see? Start it at 200 quid?
I only sold the TNC. The CRT screen had packed up. That was the start of the whole episode!
It was £931 for a new updated screen. I tried various screen conversion circuits and got a poor result. That triggered the whole upgrade.

Les

2
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 29, 2020, 04:16:09 AM »
If you use that config file to open as a "new" milling machine in Mach 3, you can see all the settings in their proper places without having to try and read the file?

I find the wireless remote quite good for general positioning. It goes down so low that you can position perfectly. Being USB, I can also easily swap it to my other machines, also on Mach 3. Beware though, I think these controllers are for specific Machs, either 3 or 4 but not both?
That said, I have made a digital probe and now use that for location in conjunction with software from craftyCNC.com.
I went the other way with keyboards, I don't have one. I got a brand new 15" touch screen from ebay for £80 and use the onscreen keyboard.
I am using the guts from an ancient PC on Windows XP crammed into the Bridgeport control box. It works well as the CSMIO really does all the hard work.

Les

3
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 28, 2020, 11:21:49 AM »
Mine was a 155, don't know how much different that is?
Not much I think?

Given that anything you want to do, either set-up or run, will require the servo drives it seems sensible to enable them all the time that the reset buttons are set.

In order to use my machine I do the following:-
Turn on the power at the isolator to bring on all the background power and the CSMIO.
Then boot up the computer, then load Mach3.
Mach 3 loads with a flashing reset button.
Reset and all the enables come in.
Press the servo on button to power up the motor drives.
Then perform a "reference all axes".
At this point I can jog with the joysticks at whatever speed I last used on my wireless controller and/or use the controller itself for positioning.

To run a program I load it into Mach 3, press the old start button to power up the spindle drive and fan ready (green button goes out) then hit program run in mach 3.

I am still using my SEM motors, I just machined the end of the spindle on each one and fitted new encoders inside the housing, together with a line driver chip.

As an aside, I put my TNC155 unit on eBay and got £800 for it. Covered almost all of my upgrade costs!

I have attached my latest Mach3 config file.

Regards,
Les

4
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 27, 2020, 05:58:55 AM »
Another thought.
Would my mach 3 config. file be of use to you?

5
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 26, 2020, 11:51:55 AM »
I have just been looking at the notes i made in my Mach 3 manual.
On the CSMIO, digital output pins 2, 15 and 3 are connected to the three axis enables respectively so when mach 3 is reset, it is set to enable these via mach 3 config. outputs.
I have used CSMIO pin 16 to do the same for DC interlock enable.
Straightforward as those relays are all 24volt that CSMIO handles nicely.

From memory, I have added an extra 110v relay in the limit switch line so that any emergency stop on the 110 side will also trigger an emergency stop on the 24 volt and mach 3 side as well. If that makes sense?

My encoders are set to 2048 and seem to work fine. I have tuned the motors via CSMIO and nothing else. Maybe I was lucky?

Les

6
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 25, 2020, 06:11:44 AM »
I'm trying to remember!
I only did this before Christmas and have already lost it...
There are two sides to the controls, 110v and 24v DC.
All the limit switches are 110v and are the "last chance" cut off.
The enable signals and DC interlock, I have wired to the CSMIO so that Mach 3 controls them. Then you can set soft limits in Mach 3 and everything behaves like it did before. You can run to the end of travel and it will stop before hitting the final buffer of the 110v system. It will not trigger a reset and you can jog back off again, as before.

The pulse suppression thing is for the Heidenhain control. It is not needed now. You get your reference from the encoders on the servo motors and ref via mach 3 and CSMIO.
I assume you have changed the encoders on your existing motors? Or you had more modern motors than me?

To power my 24v side, I did away with the ancient basic regulator fitted and put in one of these (or similar) https://www.amazon.co.uk/Surom-Universal-Regulated-Switching-Computer/dp/B071W121H7?ref_=fsclp_pl_dp_4  It even runs from 110v.

Les

7
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: April 24, 2020, 11:35:00 AM »
Mine is fully up and running now. Once I sorted the earthing thing, everything works fine. The spindle caused no problems at all.

I didn't bother with the handwheel, I use one of these instead https://www.cnc4you.co.uk/Motion-Control/WHB04B

Les

8
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: December 19, 2019, 12:49:20 PM »
I went back to basics today. I disconnected the x axis and tried it with a 1.5 volt battery on the analogue input, the cable sheath earth was joined to the machine earth.
It works fine. That led me to think about the connections to the csmio/ip-a board. I tested the ground terminals on the analogue output connector and found they didn't have a circuit to 'real' earth.
So, i disconnected all the cable screens from the terminal block and connected them to machine earth.
As if by magic, all now works fine. Each axis was automatically tuned with the plug in tuner and everything works fine now.

Tomorrow I try to make the spindle work......

Les

9
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: December 18, 2019, 12:20:49 PM »
Thanks,
I'll give that a go in the morning.

Les

10
CS-Lab / Re: csmio/ip-a + Mach 3 servo problems
« on: December 18, 2019, 11:41:41 AM »
That is one thing that I have not tried.
Unless it would be the same as reversing the encoder direction in the software?
Which only makes the test axis shuttle violently back and forth until it trips.

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