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Messages - BR549

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5161
General Mach Discussion / Re: Work offsets
« on: September 17, 2011, 08:50:21 PM »
HIYA Riley, I think I can save you some more time (;-). I came up with a workaround that will allow you to do as you wish roam in the Workoffsets as you please.

DO NOT USE G54 as your base offset.      Use G55 and above as your base offset X0Y0 THEN you can program as you wish it will work 24/7. JUST DO NOT USE G54 anywhere(;-)

I think I have the BUG narrowed down to just a small window of possiblities now.

Give it a try, Let me know IF it works for you. (;-) TP


5162
General Mach Discussion / Re: SmoothStepper - Anyone Else Seeing This?
« on: September 17, 2011, 05:24:27 PM »
Ray, DS=EMC>2

5163
General Mach Discussion / Re: SmoothStepper - Anyone Else Seeing This?
« on: September 17, 2011, 04:26:26 PM »
RAY, the darkside cured it.  Sorry I can't be of more help on that one. I gave up long ago on getting it fixed.

(;-) TP


5164
General Mach Discussion / Re: Work offsets
« on: September 17, 2011, 11:59:08 AM »
RIley I have developed a WORKAROUND for you that makes sense. We have to get creative and shift the Fixture offset BEFORE you leave the sub. Then it will work every time. The only limit IS you have to make sure all the fixture calls are in the same order of progression as the #var formula to index up the number. NOte that it starts with G54 then each loop indexes the G54 UP 1 number G54,G55,G56,etc. IT will not allow you to randomly switch Fixtures but at least it does give you an Option with TC and fixtures.

I have narrowed this problem down to a very specific area in MACH3 that should not be hard to find(;-).

N0000 (Filename: TCtest.tap)
N0010 (Post processor: Mach3.scpost)
N0020 (Date:09/16/11 Time:11:36:09 PM)
N0030 G20 (Units: Inches)
N0040 G40 G90  G54
N0050 F1
N0060 (Part: TCtest)
N0070 (Operation: Outside Offset, 0, T1: Mill/router, 0.5 in diameter, 0.02 in Deep)
N0080 (Intake)
N0090 S1000 G00 Z0.5000
#100 = 54
N0110 (Mill/router, 0.5 in diameter)
N0120 T1 M06
N0140 S1000 M03 F30
%
G0 X0Y0
M98 P1 L4
M30
%
o1
G0 X6 Y1.799
M8
N0100 X6.000 Y1.799
N0001 G41 D1
N0150 G00 X4.8900 Y2.4278
N0160 Z0.0197
N0170 G01 Z-0.020 F10
N0180 G01 X4.2500 Y1.7878 Z-0.0200  F30.0
N0190 G01 Y0.0000 Z-0.020
N0200 G02 X4.0000 Y-0.2500 Z-0.0200 I-0.2500 J0.0000
N0210 G01 X0.0000 Z-0.020
N0220 G02 X-0.2500 Y0.0000 Z-0.0200 I0.0000 J0.2500
N0230 G01 Y4.0000 Z-0.020
N0240 G02 X0.0000 Y4.2500 Z-0.0200 I0.2500 J0.0000
N0250 G01 X4.0000 Z-0.020
N0260 G02 X4.2500 Y4.0000 Z-0.0200 I0.0000 J-0.2500
N0270 G01 Y1.7878 Z-0.020
N0280 G01 X4.8900 Y1.1478 Z-0.0200
N0290 G00 Z0.5000
N0300 G40
N0310 G00 X6.000 Y1.799
N0320 M09 (Coolant off)
#100=[#100+1]
G#100
N0330 M99
%

Hope that helps, (;-) TP



5165
General Mach Discussion / Re: Work offsets
« on: September 17, 2011, 12:57:57 AM »
There IS one other way that is not as messy. It keeps the Mach coord base intact so you at least know where you are(maybe). It also works EVERY time. IF you set the Work 0,0 as refhome(machine 0,0) then it it is fairly simple.

G54
M98 P1 L1
G0 X6.000
M80  ( zeroX, zeroY  )
M98 P2 L1
G0 X6.000
M80
M98 P3 L1
G53 X0.000
M80
M30

HOPE it helps,(;-) TP

5166
General Mach Discussion / Re: Work offsets
« on: September 17, 2011, 12:29:15 AM »
NOPE it does not work here, same thing.

I can do what you wanted but it is not a pretty thing to do. Instead of using a Fixture offset, G92 or G52 You can use a G53 move in machine coords then use a macro to reset machine Zero. That process works EVERY time correctly. Trouble is YOU Have to keep track of where you are instead of MACH doing the hard work(;-)
G54
M98 P1 L1
G53 X6.000
M80  ( SetMachZero(0), SetMachZero(1)  )
M98 P2 L1
G53 X12.000
M80
M98 P3 L1
G53 X-18.000
M80
M30

5167
General Mach Discussion / Re: Work offsets
« on: September 16, 2011, 09:35:34 PM »
I have found it broken on W2k XP and Vista so far. Have not tried it on Win7 yet.

Please list the code you were using.  Also include what the modal calls were in the mode list.

(;-) TP

5168
yep you are correct. I was remembering that Art had said there was a situation that caused Mach to exceed the max vel on a combined move. I'll have to do some rerearch now(;-)

(;-) TP

5169
You have the velocity set too high for the motors/drives you are running.  When the machine makes a diagonal move the actual motor speed has to be a lot higher than the commanded rate to create the  commanded feedrate.

As a test lower your motor vel setting in config by half then retest. If that works keep bumping UP the vel until you find the sweetspot.

Just a thought, (;-)TP

5170
General Mach Discussion / Re: SmoothStepper - Anyone Else Seeing This?
« on: September 16, 2011, 06:10:42 PM »
Ray I used to see #2 all the time and did NOT have the SS.

(;-) TP

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