Messages

1481

General Mach Discussion / Re: Steppers and constant contour under Mach 3?

« on: September 08, 2010, 03:35:01 AM »

Even steppers? Not just servos?

Just curious but why would you think there was a difference between steppers/servos with regards CV?

1482

Tangent Corner / Re: cnczone

« on: September 07, 2010, 07:22:24 AM »

Tweakie - I'm at a bit of a loss to be honest. I've spoken to Hood (as another UK user - Scotland still is in the UK isn't it?  ) as well and he seems to have no problems. I've been onto my ISP but reasonably they say if it's mainly one site I'm having trouble with then likely it's their issue. As I say cnc admin havn't responded so I'm kinda stuck.

Ian

1483

Tangent Corner / cnczone

« on: September 07, 2010, 06:20:54 AM »

anyone got an inside track to any cnczone admins? I've been having problems for a while with the site being sloooooooooooow - taking anywhere from 30 secs to several minutes to bring up each page. Quite often it just times out altogether. It's getting pretty unusable. One particular problem is when it's trying to access ads.cnczone.com whatever that is - that can take forever.

I put a message on Forum Questions and Problems but didn't get any response from admin. I now see my thread has disappeared though I can still get to it from an old email notification of a reply. Seems to me they have a few issues.

Anyone else having similar probs.

1484

General Mach Discussion / Re: Smoothstepper and probing, home and THC

« on: September 05, 2010, 03:21:59 PM »

Thanks Ray - I appreciate your help on this and as I said, everyone elses input too. I now have a better understanding of the whole shabang. I do have a couple of new questions that have occurred, but I'll leave them for now whilst I digest.

Cheers

Ian

1485

General Mach Discussion / Re: Smoothstepper and probing, home and THC

« on: September 05, 2010, 11:47:13 AM »

All making sense and understood but get a grip with the old quoting mechanism Ray - I've just about done my already poor eyesight right in  

I'll go away and have a bit more thinks but at the moment I'm thinking so why no THC - it (now)sounds to me relatively trivial - THC to SS: "UP", SS to Z: "pulse", and then the occasional SS to Mach: Update the Z dro/pos to: "3.142".
Job done and we all go down the pub.

Cheers

Ian

1486

General Mach Discussion / Re: Smoothstepper and probing, home and THC

« on: September 05, 2010, 05:35:56 AM »

Gentlemen - I think we're getting closer - but as always - the devil is in the detail. Can I push a little deeper.

When probing, the Mach3 parallel port driver issues a step pulse, then immediately checks the PROBE input to see if it's gone active.  If so, then it knows the probe is complete.

Well not quite complete - we're not done yet. What then "goes on" between the PP and "Mach3"? i.e. the probe trips. Then...? (see the next bit for what I'm getting at)

With the SS, Mach3 tells the SS to probe.  The SS issues the step pulses, and tests the PROBE input.  When the PROBE input goes active, the SS stops stepping

Well not quite - it DECELERATES to a stop. How does it (the SS) know how to do a deceleration curve?

and sends the position back to Mach3.

Ah - one of my earlier questions - How?

Cheers - and let's keep it cool guys - I'm grateful for ALL your input.

Ian

1487

VB and the development of wizards / Re: More VBscript woes

« on: September 03, 2010, 11:37:03 AM »

None taken  (I think you know I meant the DWELL was pointless - but now you mention it - arf)

1488

VB and the development of wizards / Re: More VBscript woes

« on: September 03, 2010, 10:59:01 AM »

Take out the dwell - just like in your thread a few days ago it's pointless.
then stick a

Code: [Select]

while isMoving()
  sleep(50)
wend

after each line - probably not needed after every line but as they're all requests from VB to Mach it won't hurt.

1489

General Mach Discussion / Re: working in simulation mode

« on: September 03, 2010, 05:00:06 AM »

I think the problem is that the vids suggest you don't need the driver if you're just emulating which of course is wrong for things like this. In the early days (before I knew about issues like this) I chose not to install the driver on a simulation system because I also had a printer on the PP and thought (wrongly) that they couldn't co-exist.

1490

General Mach Discussion / Re: working in simulation mode

« on: September 03, 2010, 04:33:43 AM »

Not sure if you're pulling my leg  

He's in simulation mode i.e. I'm betting he hasn't loaded the driver. THC, probing, limits and homing are all in the driver.

doncaruana: Load the driver (and reboot) even though your not connected to a machine and they'll be "emulatable" with keys. Although the diagnostics show the keypresses, without the driver nothing happens.

Ian