Messages

1

CS-Lab / Re: CSMIO/IP Trajectory Buffer Underrun

« on: May 02, 2020, 06:58:03 PM »

To add to this thread:

ive ditched the laptop and am now running on a Gigabyte Brix N2807.

Same issue pops up: 'trajectory buffer underrun'

Bad motor response.

Went through all the networking stuff only to find:

Running:

Mach4GUI.exe
Mach4GUIR.exe

in administrator mode fixed the problem.

2

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: May 02, 2020, 06:51:10 PM »

I put in the soft start. An SSC-25. Its fine starting up, no fuses blowing, but bloody hell you dont want this thing in after startup. It creates so much noise on the line the drives dont work properly. So you have to switch it out after startup. Ive got a delay relay on order. i've been testing today with a switch  to manually bypass it. Works fine.

Other issues ive fixed today... CSMIO reporting 'trajectory buffer underrun'.. Now i had this before when running it on a laptop. Which I fixed by re installing the LAN driver. This time i fixed it by running:

Mach4GUI.exe  and  Mach4GUIR.exe

in administrator mode. works fine now.

New issues today are Z axis 'hunting' 0.01mm and maybe Mach misbehaving running a program.

I think ill put the VDU and the TNC on for 200 each!

Cheers

John

3

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 30, 2020, 09:00:52 PM »

Thanks Les, Ill install mach 3 and have a look. Very handy.

Might very well get the wireless remote. Seems like its cheap and best.

Went well today. Im putting in a soft start for the drive transformer, have had some issues
with it blowing a fuse in the consumer unit when it powers up. Happens about 50% of the time.
i hope it works.

Im astounded you got £800 for the TNC. Did you include the VDU or did you sell that seperately?
My 145 is a bit crapppier... only 1 program of 1000 lines and no drip feed. 2.5D as well.

I'll post updates..

John

4

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 28, 2020, 08:20:56 PM »

Thanks Les, much appreciated. it makes sense now.

Ive still got SEM motors. I had a problem with a drive that stabbed the
x motor beyond repair. ouch. I sourced a new bosch drive. And then I got
hold of 4 SEM motors with new encoders (same as yours i reckon, with the line
driver chip that wont fit in the endcap) for 500 quid. Now I have spares!

How is that wireless controller? Is it laggy at all when touching off etc?
Looks like a bargain considering the CS Labs one is 300 quid.

An old stainless steel 'internet kiosk' keyboard arrived today for 35 quid.
Waterproof. And it has a trackball. Another bargain.

Im just setting up a solid state micro pc to run windows 10 as i write this.

Reckon I'll be making parts again next week which will be a massive relief.

Thanks for the config. Not sure where to look for feedrates and acceleration but
I'll look more closely tomorrow..

Cheers

John

5

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 27, 2020, 07:08:05 PM »

Ta for getting back to me Les. Ive been overthinking this a little bit.

I reckon on the TNC145 I had, the x-release, y-release, z-release relays
would have been energised if:

A) youre running a program
B) youve pressed the 'hand' button or the 'wheel 'button' to jog.

So if we want to emulate this in mach, code can be written to energise the relays upon program run, and we'd
have to have a panel switch for 'jog enable'

If Mach energised the relays every time a jog button was pressed they'd be clicking on and off like god
knows what. Not possible.

Question is, is there any point in doing this anyway? Is there any point in having 5FC energised without x-release,
y-release, z-release? Why did Heidenhain do this? Is it a safety thing? I have noticed a large power surge when 5FC
engages though.

Anyway. See what i mean about overthinking? What im going to do is make the provision for a 'jog enable' switch
and leave it for a bit. Ive got some 'digital out's for lights in the pendant already.

Regarding the E-stop, Im doing exactly the same. Sending a signal from 110v to Mach, I'll do the other way a well.
So if Mach E stops, it shuts down 110v.


I spent time on motor tuning as ive replaced all the SEM motors and one drive, so nothing would have been tuned together
originally. But I was pretty lucky as well .It works.

Encouraging to know youre on 2048 lines as well. I thought id overdone it. I'd be lucky to pull 0.01mm anyway.

I'd find your mach 3 config file very useful. Im running mach 4 but for feeds, acceleration etc i can just plug that lot in!

Great!

Cheers Les,

John

6

Mach4 General Discussion / Re: Mach 4 on Windows XP version 4.2.0.4162

« on: April 27, 2020, 06:23:58 PM »

Thanks so much Brandon. Ive abandoned the windows xp plan. I've ordered a micro pc capable of running
windows 10.. all solid state. It was only a temporary idea anyway. Probably 18 years old the xp box.. it did have
windows 2000 on it when i dug it out of the cupboard. It was like going back in time booting that up!

Cheers

John

7

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 25, 2020, 06:33:39 PM »

Youre right limit switches, motor overload etc is 110v that goes into FC5 (Feed contactor 5).

FC5 will shut down power to the Bosch drives at any hint of trouble.

Ive got the original SEM motors and put new encoders on. I may have set these at too higher a resolution
though at 2048 lines. As x4 quadrature is 8192 pulses per revolution. That means 3276.8 per mm. The motors are 'hunting'
a bit, less than a micron, but I'm thinking a lower res would stop this?

Ive done the same as you, put in a new 24v supply for the 24v relays. All good.

What im really wondering though is how you actually made the 'drive enable' signals work? Did you have to write a macro
or something? I cant see an option in the CSMIO plugin. Theres a 'drive reset' checkbox... is this it?

Incidentally, I was able to adjust kV on the bosch drives by adjusting Pot 23 and tuning in the CSMIO plugin. Turning pot 23 clockwise
reduces Kv and anticlockwise increases it. 1 turn is about 0.04  I managed to get kV pretty much bang on 1.00 this way.

I'm uploading the Bosch manual if youre interested in this stuff...

John

8

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 24, 2020, 04:52:19 PM »

Can I ask you how you dealt with the Bosch drive enable signals?
It would be good to use these when jogging or running a program
like the old Heidenhain did.

Ive just got them turned on continuously for now although i am
using 'DC Interlock' for 'machine enable' which seems to make sense.

Also did you use the NC home switch signals? They seem quite German
to me. If there is a fault its just going to slam into the limit and cut off
FC5. It says 'Reference Pulse Suppression' on the drawing. Im not sure
what this means?

Im attempting to attach the diagram for the bit I'm talking about...

John

9

CS-Lab / Re: csmio/ip-a + Mach 3 servo problems

« on: April 24, 2020, 07:24:06 AM »

Im going through the same process as you.

How far have you got?

Ive tuned my axes so far. Homing routine next.

John

10

CS-Lab / Re: CSMIO/IP Trajectory Buffer Underrun

« on: April 23, 2020, 05:07:22 PM »

Ok. Success. The power saving mode was already turned off.

However I ended up re-installing the network adaptor and the problem
has practically gone. It happened once today but this proves you're right
and its not a drive.

I need to run mach on a dedicated pc, with nothing else installed, asap.

Thanks for your help, Julien.