G53 G0 Z0.

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18 Jun 2019 15:18 #137194 by pl7i92
Replied by pl7i92 on topic G53 G0 Z0.
can you show us your ini file
there is maybe somthing we can change
[AXIS_2]
# Zachse
TYPE = LINEAR
HOME = -5.0
MAX_VELOCITY = 40.0
BACKLASH = 0.03
MAX_ACCELERATION = 80.0
STEPGEN_MAXACCEL = 120.0
SCALE = 100.0
FERROR = 1
MIN_FERROR = .25
MIN_LIMIT = -65.0
MAX_LIMIT = 1.0
HOME_OFFSET = 0.000000
HOME_SEARCH_VEL = 3.000000
HOME_LATCH_VEL = 3.000000
HOME_FINAL_VEL = 5.0
HOME_SEQUENCE = 0

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18 Jun 2019 17:07 #137210 by flylowgofastturnleft
Replied by flylowgofastturnleft on topic G53 G0 Z0.
here is ini file :

0

[AXIS_2]
TYPE = LINEAR
HOME = 0.0
MAX_VELOCITY = 100.0
MAX_ACCELERATION = 750.0
STEPGEN_MAXACCEL = 937.5
SCALE = 80.0
FERROR = 1
MIN_FERROR = .25
MIN_LIMIT = -0.001
MAX_LIMIT = 200.0
HOME_OFFSET = 0.0

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18 Jun 2019 18:10 - 18 Jun 2019 18:11 #137218 by bevins
Replied by bevins on topic G53 G0 Z0.

flylowgofastturnleft wrote: Hello,

So I can just remove G53 lines, but perhaps there is a better way to proceed ?

Could you give me a post or a link to the good way to take origins ?

I think I miss something

Thanks


Do you home your machine when you power up? If you do then leave the G53 there.

It all depends on how you home your machine.

If you move to the bed of your machine and home and touchoff tool to table then G53 Z0 will dive through your workpiece.

You could before touching off, move your Z to the highest point and home Z there, then touchoff on the table, then G53 Z0 will move the Z to where you homed it.

You have to remember where you touchoff Z will be G54 Z0 which should not be the same place as G53 Z0 is. G54 is an offset to G53 and G53 X0 Y0 Z0 is suppose to be the same place all the time.

That is basic with no special circumstances.
Last edit: 18 Jun 2019 18:11 by bevins.

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20 Jun 2019 10:02 #137356 by flylowgofastturnleft
Replied by flylowgofastturnleft on topic G53 G0 Z0.
hello,

If I understand, Z axis need to work in negatives value ?

This is the opposite with fusion 360.

How to have a good file from Fusion ?

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20 Jun 2019 11:12 #137362 by MaHa
Replied by MaHa on topic G53 G0 Z0.
You did not tell, how you home Z. If it is possible for your machine to change G53 Z0(machine Z0) to the most faraway position from working area, if this action doesn`t affect machine safety. After all Z moves are Z-
You can try change ini entrys,

MIN_LIMIT = -0.001 to -200.001
MAX_LIMIT = 200.0 to 0.001
HOME_OFFSET = 0.0 to -200

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20 Jun 2019 12:17 - 20 Jun 2019 12:18 #137367 by Todd Zuercher
Replied by Todd Zuercher on topic G53 G0 Z0.

flylowgofastturnleft wrote: hello,

If I understand, Z axis need to work in negatives value ?

This is the opposite with fusion 360.

How to have a good file from Fusion ?


Where you set the machine coordinates Z0 (G53) has nothing to do with the work coordinate (G54) settings where your G-code actually does its moves.
You should set the home position to the top of travel so all G53 moves are Z-, then touch off the G54 work coordinates to set Z0 to be your work or table surface, as needed by your G-code from Fusion. Doing that will give you the movements you need. (It sounds like you really are not getting the difference between "machine" and "work" coordinates and how they are used. It also sounds like you are using homing like touching off, these are not the same thing and should not be used interchangeably. You home once at start up, you touch off when ever you change tools, or setups.
Last edit: 20 Jun 2019 12:18 by Todd Zuercher.

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20 Jun 2019 12:41 #137374 by pl7i92
Replied by pl7i92 on topic G53 G0 Z0.
so you do not autohome the mashine at all
just you press every axis and REFERENCE at the point where it stands

THEN you need to DELETE *var and *.var.bak
in the Mashine folder all the time
as it holds last Mashine position and Parameters
that come from Fusion360

ADVICE GET yoi some switches
CHERRY switch 5pices 4USD
or go the real way use LJ12A3 BX version NPN NO

and get your mashine automated to a Mashine Reference point

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