PlasmaC questions new setup

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16 Jun 2020 11:06 #171828 by phillc54
Try changing the Z scale in the ini file to -400

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16 Jun 2020 11:21 - 16 Jun 2020 11:21 #171831 by tecno
Replied by tecno on topic PlasmaC questions new setup
Yes it changes the PgUp behavior but still PgDn the DRO counts up positive.

Where is torch home position to be Up or Down?
Last edit: 16 Jun 2020 11:21 by tecno.

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16 Jun 2020 11:25 #171833 by phillc54
So PgUp and PgDn both move up?

Z Home should be at or near Z max limit.

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16 Jun 2020 11:31 #171836 by tecno
Replied by tecno on topic PlasmaC questions new setup
Have messing around in INI, Scale -400 is correct for PgUp torch going up towards Max_Limit and Home switch.

But I cannot get DRO to show 90 as it should ? Or am I barking at the wrong tree?
I have total 105mm and want my home to be like 15mm lower than max
DRO to show 90 when homed.

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16 Jun 2020 11:40 #171837 by Clive S
Replied by Clive S on topic PlasmaC questions new setup

Have messing around in INI, Scale -400 is correct for PgUp torch going up towards Max_Limit and Home switch.

But I cannot get DRO to show 90 as it should ? Or am I barking at the wrong tree?
I have total 105mm and want my home to be like 15mm lower than max
DRO to show 90 when homed.


One of the problems is some people use +ve numbers and others like me use -ve numbers Ie on mine I home at the top = 0 then _ going down that is the way a mill would generally be setup.

Now you have changed the scale to -ve to get the pageup/down correct. It will change all the other setting. like I posted earlier

its up to you my working config that I posted is fine for me. When you have it working you never use the Z touch again

I don't want to muddy the waters as to many cooks spoil the broth. There are many ways to skin a cat.

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16 Jun 2020 11:50 - 16 Jun 2020 11:52 #171838 by phillc54

Have messing around in INI, Scale -400 is correct for PgUp torch going up towards Max_Limit and Home switch.

But I cannot get DRO to show 90 as it should ? Or am I barking at the wrong tree?
I have total 105mm and want my home to be like 15mm lower than max
DRO to show 90 when homed.

After you home the machine, jog it all the way to the bottom then do a touchoff with a value of zero. Home the machine again and it should be good to go.

EDIT: from the ini file your home switch is near the bottom, 15mm above Z minimum limit.
Last edit: 16 Jun 2020 11:52 by phillc54.

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16 Jun 2020 11:59 #171839 by phillc54
Where is your home switch located in relation to your Z maximum limit?

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16 Jun 2020 13:09 #171842 by tecno
Replied by tecno on topic PlasmaC questions new setup
So now I have it working.Config with 0 safe height. After cuts torch returns to 0


[JOINT_2]
AXIS = Z
MIN_LIMIT = -105
MAX_LIMIT = 0
MAX_VELOCITY = 40
MAX_ACCELERATION = 100
TYPE = LINEAR
SCALE = -400
STEPGEN_MAX_VEL = 60
STEPGEN_MAX_ACC = 150
FERROR = 0.0051
MIN_FERROR = 0.0025
# HOME = 95
DIRSETUP = 5000
DIRHOLD = 5000
STEPLEN = 2500
STEPSPACE = 2500
DEADBAND = 0
P = 1000
I = 0
D = 0
FF0 = 0
FF1 = 1
FF2 = 0
BIAS = 0
MAX_OUTPUT = 0
MAX_ERROR = 0.0127
HOME_USE_INDEX = NO
HOME_OFFSET = -11.00000
HOME_SEARCH_VEL = -10.000000
HOME_LATCH_VEL = 6.00000
HOME_FINAL_VEL = -2.00000
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 0

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16 Jun 2020 13:12 #171843 by tecno
Replied by tecno on topic PlasmaC questions new setup

Where is your home switch located in relation to your Z maximum limit?


11mm under Z max

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16 Jun 2020 14:44 #171847 by tecno
Replied by tecno on topic PlasmaC questions new setup
Re extras:
Is there any way in config to always add G0Z50 at the end of finished cut.

This just avoid leaving Z above home switch when shutting down LCNC

From CAM this could be added in PP

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