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General Mach Discussion / Mach3 CNC table Soft Limits configuration
« on: January 20, 2015, 10:03:47 AM »
Hello everybody. Trying to setup my 3 axis CNC with Chinese 3axis USB breakout card
http://www.ebay.co.uk/itm/3-Axis-USB-Controller-Card-400KHz-CNC-MACH3-Breakout-Interface-Board-Win7-8-XP-/261395836685?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item3cdc67ef0d
I managed to connect this device to my steppers, connected X,Y,Z home switches and E-Stop. Everything, seems to be, is working fine. Except...
- After homing ( machine home switches are located on the opposite side from 0 for X and Y, and in the middle of the axis travel for Z) I get machine coordinates set to X0,Y0,Z0. Doesn't matter, what Home Offset is set in Motor Home/Limits menu. Auto Zero is set to ON. How to fight with this? I can't map physical spindle position with the Table Display in MACH3
. Physically X/Y position is 280/200, but Machine coordinates are always set to 0/0/0 after homing what is reflected on the Mach3 screen .
- With soft limits enabled ("Soft Limits" button is in green rectangle) Mach3 still allow axis to move, even if it cross Soft limits coordinates. This is really bad, and I can't understand how to fight with this.
Tried this on several different PC's with fresh MACH3 R3.043.066 DEMO. Results are the same. What I'm doing wrong? All settings in General config are "Factory default". Can this be a USB Card PlugIn fault?
http://www.ebay.co.uk/itm/3-Axis-USB-Controller-Card-400KHz-CNC-MACH3-Breakout-Interface-Board-Win7-8-XP-/261395836685?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item3cdc67ef0d
I managed to connect this device to my steppers, connected X,Y,Z home switches and E-Stop. Everything, seems to be, is working fine. Except...
- After homing ( machine home switches are located on the opposite side from 0 for X and Y, and in the middle of the axis travel for Z) I get machine coordinates set to X0,Y0,Z0. Doesn't matter, what Home Offset is set in Motor Home/Limits menu. Auto Zero is set to ON. How to fight with this? I can't map physical spindle position with the Table Display in MACH3
. Physically X/Y position is 280/200, but Machine coordinates are always set to 0/0/0 after homing what is reflected on the Mach3 screen .- With soft limits enabled ("Soft Limits" button is in green rectangle) Mach3 still allow axis to move, even if it cross Soft limits coordinates. This is really bad, and I can't understand how to fight with this.
Tried this on several different PC's with fresh MACH3 R3.043.066 DEMO. Results are the same
. What I'm doing wrong? All settings in General config are "Factory default". Can this be a USB Card PlugIn fault?