Messages

1611

General Mach Discussion / Re: Wiring of 2 wire proximity switch

« on: May 29, 2010, 11:10:55 AM »

Hi Sweep

Did a bit of a look around and it appears your sensors are NAMUR sensors. These are apparantly designed for hazardous environments but if used elsewhere don't require the "strict" interface I'm guessing you've been quoted for.

Here's a link to a general description

http://www.tektron.ie/namur1.htm

and here's their datasheet

http://www.balluff.com/Balluff/gb/ProductsChannel/Product+Detail/en-gb/ProductDetail.htm?ProductID=BES+516-324-E2-N-03&ProductGroupGuid={80FEAFAC-1F1E-4045-92E1-D28D94DC547B}&DocumentPage=5

Basically I'm thinking maybe a simple op amp circuit that senses the changing voltage drop accross them as they change resistance.

Cheers

Ian

1612

VB and the development of wizards / Re: mach3 and beam saw

« on: May 28, 2010, 03:39:28 AM »

Hi csabika - maybe I'm missing the point - but I can't see why you need a macro at all and certainly not a macropump. Your gcode is completely predictable (as is gcode generally) so you KNOW where it's going to be at any time. You don't need to say "IF X < anything" because you commanded it to be there. Just write your gcode to do whatever it is you want with your saw and it will do it.

FWIW - you need to command a Feedrate and use G1 for your cuts. At the moment you are cutting at RAPID (G0) speed - generally not good practice.

Hope this helps - Ian

1613

VB and the development of wizards / Re: mach3 and beam saw

« on: May 27, 2010, 11:13:11 AM »

Csabika - can you attach your gcode file please?

Cheers

Ian

1614

General Mach Discussion / Re: Bad Character

« on: May 27, 2010, 09:24:03 AM »

That would be a DXF file - and a very short one too... in fact that's just the first few lines of a DXF file.

Cheers

Ian

1615

General Mach Discussion / Re: Prev. seq. not yet complete

« on: May 27, 2010, 09:21:00 AM »

hi psutex - if I had a quid for every time I've seen posts with that error message both here and on the zone I'd be a rich man
Here's one that actually came to a conclusion http://www.cnczone.com/forums/showpost.php?p=753709&postcount=10

1616

General Mach Discussion / Re: External Estop Requested. Y & Z green. X not

« on: May 26, 2010, 01:12:56 PM »

Hi Hamishk - first thought would be it sounds like you may have disconnected/broken a couple of wires in your cables - most likely wher they attach to the connectors.

1617

General Mach Discussion / Re: Another lost steps post...

« on: May 26, 2010, 04:30:10 AM »

The error is only introduced when I change direction.

The only two reasons I can think of for this are lost step pulses on dir change or backlash. The former is usually a single step pulse lost but for your res and error you'd have to be losing around 20 pulses! That can't be right... Don't know about the rest of your system but do belts really have no backlash?

Cheers

Ian

1618

VB and the development of wizards / Re: mach3 and beam saw

« on: May 26, 2010, 03:47:44 AM »

Hi Csabika - Sorry but I'm still not sure what you want to do. But if I describe what your macro is doing it may help you to find a solution.

A macropump driven macro runs every 10th of a second - continually. Therefore when X<=150 it will just execute an M9 over and over again - forever - until something else (your gcode maybe?) moves X over 150. BUT - when X>150 it will execute a G90 X300 over and over again - forever - again until something else moves it less than 150. Then of course your back in the first condition - etc. etc.

Cheers

Ian

1619

VB and the development of wizards / Re: mach3 and beam saw

« on: May 25, 2010, 10:56:31 AM »

Hi Csabika - welcome to the forum.

Can you explain again what you're trying to do? Also can you attach your macro as far as you have got please?

1620

General Mach Discussion / Re: What Steps/ Units Settings for Z-axis (Quill) of CNC Retrofitted Radial Machine?

« on: May 22, 2010, 04:28:42 PM »

1200 Oz-in Bipolar Mode, I am using it in Unipolar so Lets say I am getting 600Oz-in Torque straight away from the Motor..

Well it doesn't really work like that. The 1200 oz/in is HOLDING torque. i.e. the torque you'd need to apply to force a stationary or "held" motor to rotate. It tells you very little about the torque it actually "develops" while rotating. Drive a "big" motor less than optimally and a "small" one optimally and the small one will win every time. As for the rest - sorry - I'm not your man - what I know about drilling carbon steel could be written on a pin head. Anyway - good luck.

Cheers

Ian