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Messages - BR549

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221
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 10, 2016, 12:54:34 PM »
HI Ian, Very good advice.   I agree take simple steps coding and testing as you go. The first thing I do is get teh motion correct then work on the math.

And just a note  (;-) Ian has helped me a great deal working with Mach3 (;-) His programming advise is HIGHLY valued here.  

Another tip , you are working in 2 motion modes G91 (Inc) and G90 (Abs) don't get them mixed up when you go to move (;-) each has it's own advantages/Disadvantages. AND you can do this several different ways (;-) so there is really no right way or wrong way IF the end results are correct.

222
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 10, 2016, 11:17:11 AM »
You are almost there (;-)   You can build a mixed string but you have to concatenate each piece together. These are just different examples

Code"G1 X" & Xzero & "F30"         

Or

Code"G1 X" & GetVar(2000)  & "F30"


Also remember when you go to do the math to find center it will depend on what quadrant you are in as to how it needs to be. The math for each quadrant may be different. SO you also need to be able to identify teh quadrant you are actually in (;-)

I also do not call the CB variables as Xmin , Xmax   because depending on teh quad that might not be the case and it could be confusing. I use X1 X2 , Y1 Y2. 

223
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 09, 2016, 07:50:22 PM »
Actually  this does bring up a good point IS there ONE spot a USER can go to to get ALL teh manuals that have been generated for Mach3 over teh years. OR are they still scattered about ???

Preferrably we need 2 sites in case we loose this one one day when Mach3 does go away permanently .

Just a thought, (;-) TP

224
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 09, 2016, 06:21:51 PM »
HIYA Rich we did testing on probes and speed years ago with art.  IF you have a 3 point pivoted probe , and most low end probes are' the ONLY difference we saw was in the radial direction that you probed in in relation to the probe. THAT is a physical thing with teh motion of teh wabble plate on teh three pivot points. ALL 3 point wobble plates have teh same problem.

What is being refered to here is the need for a second pass or double tap. But if that is what he wants not a problem (;-).  I have seen a LOT of different approaches to this over the years always room to add one more (;-)

Actually it is NICE to see someone actually working on their OWN routines these days.  COOL (;-)

(;-) TP


225
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 09, 2016, 05:34:04 PM »
You cannot mix CB variable code inside of Gcode calls. You will have to seperate them .

Also you have problem with your return to zero math and mixing inc moves with abs values.

(;-) TP

226
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 09, 2016, 04:53:35 PM »
The G31 does NOT stop and back off. You must back off teh switch before issueing another G31 or else you WILL get an error.  

AND just for the record you do not gain any accuracy by slowing down or double tapping (;-)

The N010 is just a line number statement in Gcode.It is not required but can be used.

Also remember that you are moving in incremental values BUT teh stored variables (2000 & 2001) are absolute values of position. That will effect your math depending on the quadrant you are currently working in.

You are getting closer (;-) TP


227
General Mach Discussion / Re: Mach3 VB Script Help
« on: February 09, 2016, 12:31:29 PM »
Just remember that once you trip you cannot imediately reprobe in another direction you have to back off the trip point before you can use G31 again.

G91
G31  X10  ( Probe X Right)
G0 X-.050 ( Back off to untrip probe)
G31 X-10  ( Probe X Left)

Also there is really no need to double or triple tap with teh G31 (;-)

And as Stirling mentioned you may be severvely overthinking the process . The only hting you need to keep in account is the amount of overrun your particular probe has before it is damaged.  Normal that type of sensor has little to no overun capability before it breaks something. The probeing process will alwyas have some overrun as teh machine comes to a safe stop on trip. The slower your accel rate is and teh faster you probe the more overrun you will see.

228
General Mach Discussion / Re: G98 not working in canned cycle
« on: February 09, 2016, 11:56:54 AM »
The way it is suppose to work IS you set teh initial Retract MODE at teh beginning of teh cycle. Once set and the cycle turns ON then you cannot change it untill teh cycle is complete or you cancell with G80 .

That is also teh Fanuc standard for G98/99

229
General Mach Discussion / Re: Physical buttons for plasma
« on: February 09, 2016, 11:52:58 AM »
OK lets try it this way.  THC delay. When the torch first fires teh Arc volts are very unstable and can be as high as 200-300 volts and may take a few 100 ms to stabilize back down to normal. IF the THC is active at that time it willl sense teh high voltage and tell Mach3 to LOWER the torch. YOU DO NOT want it to do that.  SO teh THC delay delays teh THC going active until the dwell time is over THEN it turns on the THC for control. At that time teh Arc volt should be stable and the THC can take over control of Z without causing torch dive.  IF you settings are correct that is (;-)



(;-) TP

230
General Mach Discussion / Re: coutinuous y movement seperate from z
« on: February 09, 2016, 11:41:59 AM »
OK for teh quick answer it is NO. Mach3 cannot have 2 seperate independant axis of motion at the same time.

(;-)

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