Messages

51

Mach4 General Discussion / Re: Setting to millimeters

« on: December 25, 2017, 04:07:12 AM »

Just a note of what seems like a bug.  If I simply go into MACH settings, I have to exit MACH4 because it sets the jogging back to inches.

52

Mach4 General Discussion / Re: Setting to millimeters

« on: December 23, 2017, 12:31:29 PM »

I had to edit the screen and change those display fields to use metric instead of inch.  I'm sure there is probably a place in the LUA script to set those values, but I haven't dug that far into all this yet.  I am using the PoKeys57CNC .

53

Mach4 General Discussion / Setting to millimeters

« on: December 23, 2017, 02:53:51 AM »

I'm trying to calibrate the stepper motors.  I've set a value of 256/unit on all of the motors to start with (which seems to be close).  I've also set the Machine Setup Units to Metric and the Units Mode to Metric.  When I jog any axis by 1 mm, the current position increments by 25.4mm which tells me its converting to 1 inch.  What setting am I missing?  I never want to use inches/mils and only want to see/use millimeters.  (Mach 4  4.2.0.3481)

Thanx.

54

Mach4 General Discussion / Re: Axis directions

« on: December 21, 2017, 10:31:55 PM »

Excellent.  Thanx Gary.

55

Mach4 General Discussion / Axis directions

« on: December 21, 2017, 07:05:30 PM »

Ok, I'm used to axis's being homed (0,0,0) in the front left corner with X axis increasing going to the right, Y axis increasing going toward the rear, and Z axis increasing going up.  Now I understand the Z-axis for CNC will work in reverse.  0 at the top and then negative values going down.  Is the same true of the X and Y?  Use rear right corner as home and negative values moving left/forward?  I'm in the process of setting up the software and want to do what is "common".

56

Mach4 General Discussion / Re: Pokeys57CNC and probing

« on: December 21, 2017, 02:56:03 PM »

I want to confirm the v1.3 board does NOT need the external pull-up?

57

Mach4 General Discussion / Re: Limit switches

« on: December 16, 2017, 07:35:16 PM »

My only puzzle is how to put a home switch at some other point than a limit switch.  I can't picture it.  I don't have any way that I know of to put a home switch somewhere in the middle of travel that a) does't block travel of that axis, and more importantly b) how it would be active ONLY at the home point and not at any point to either side.  Doesn't make sense to me.  I understand the logic you are talking about, it's the physical implementation I don't understand.  Pictures would speak a thousand words.  :-)

Here are the switches I installed.

Sent from my SM-G955U using Tapatalk

58

Mach4 General Discussion / Re: Limit switches

« on: December 16, 2017, 07:27:20 PM »

My only puzzle is how to put a home switch at some other point than a limit switch.  I can't picture it.  I don't have any way that I know of to put a home switch somewhere in the middle of travel that a) does't block travel of that axis, and more importantly b) how it would be active ONLY at the home point and not at any point to either side.  Doesn't make sense to me.  I understand the logic you are talking about, it's the physical implementation I don't understand.  Pictures would speak a thousand words.  :-)

59

Mach4 General Discussion / Re: Limit switches

« on: December 16, 2017, 06:40:44 PM »

I think you read the wrong message.  :-)  I've already moved past the  Zero Plate.  So best course of action would be to use HOME and LIM+ for X and Y AND install a Z Home (presumably at the top of travel)?

60

Mach4 General Discussion / Re: Limit switches

« on: December 16, 2017, 06:24:32 PM »

so best course of action would be to use HOME and LIM+ for X and Y AND install a Z Home (presumably at the top of travel)?