Messages

61

General Mach Discussion / Re: Mach3 4.0 Rev Update

« on: November 07, 2011, 12:22:33 AM »

dear Brian
something that mach3 version3 don't have is that it should have an option that you can move the z axis while it is moving cause on the waterjet field this is a usefull option
as of now you can use the torch up and torch down but this does not remember where it was you have to adjust the z axis on every pierce
hope i am not mistaken

62

General Mach Discussion / analog to thc

« on: October 10, 2011, 05:32:27 AM »

hi guys
i am thinking to have a ultrasonic or a laser sensor that can give me a 0 to 10v analog signal and then mach3 will converted to torch up and torch down is this possible to do via brains ?
regards
jekran

63

General Mach Discussion / Re: ab pulse train output

« on: May 07, 2011, 12:20:48 PM »

may be you are right i never done this before i am trying to do this cause of certification my problem is that i cannot find any breakout boards with ce certification so i was thinking the option with the plc
another thing is how i can make a machine running with mach3 with ce certification i been searching for days now trying to find breakout boards with ce certification
is there any way to do this?

I don't think you'll have much luck driving the motion outputs of the plc from Mach. The high speed functions only work when you are running a motion program from the inside PLC program. When you are using them as normal outputs (which they really would be in this case) there is some limitation as to how fast they can change state. The motion control program that resides in the PLC runs along side the normal PLC I/O function and runs somewaht independent of the normal PLC I/O Scan.  I have seen normal PLC scans of 500-600 per second, where you are looking for output frequencies in 100,000 times a second.

A normal PLC  runs kind of like this - Read the inputs, go through the program logic setting the outputs, write the outputs. The Micrologix PLC's I used did this about 500 times a second. There is some other overhead in the process to check for errors and such...

64

General Mach Discussion / Re: ab pulse train output

« on: May 05, 2011, 03:12:14 PM »

many thanks for your help hood i will take a look to the manuall so i will get a bit more 

65

General Mach Discussion / Re: ab pulse train output

« on: May 05, 2011, 03:01:52 PM »

i shoud have the cw/ccw although i never used that but another thing that i dont know is how to connect the wiring from output 0 should i put a wire to cw and from the com to ccw i never done this before 

66

General Mach Discussion / ab pulse train output

« on: May 05, 2011, 12:31:44 PM »

hi guys i have a plc allen bradley micrologics 1400 and it says that on out put 0,1,2 has a pulse train output (100khz) that can drive the axis so i was thinking if i can use this to drive the axis my servo drive have the step & dir input is this possible ? my intention is so i dont use the parallel port i make 1 ethernet cable to communicate with the plc and the plc will do all the work like i/o and the axis drives too

67

General Mach Discussion / Re: Help w/ cnc plasma issue

« on: May 03, 2011, 11:18:19 AM »

for me it sound that you have noise try to sheld the plasma torch cable and try to avoid the plasma torch cable to the other cables like motors ,limits ecc

68

General Mach Discussion / Re: denford easiturn

« on: February 19, 2011, 12:29:24 PM »

i can help cause i allready done this

69

General Mach Discussion / Re: Win a CNC mill at Cabin Fever Expo, Janaury 14, 2011

« on: September 22, 2010, 02:17:00 PM »

hi guys
i am from Malta and i would like to meet  some of you guys but it is a long way for me to come but if i will have some more info i would consider to come
is this only event that mach participate ?
i am really anxious to learn more about mach3
what wether will be at that time ?
what is the closest airport ?
hotel ?

70

General Mach Discussion / Re: Soft stop at limit switches

« on: September 14, 2010, 02:56:06 PM »

do you know when rev4 is coming out ?