Messages

1

G-Code, CAD, and CAM discussions / Re: Just learning, need help

« on: April 19, 2022, 07:47:44 PM »

Thar is what G28 is used for. The head is retracted in Z and moved to an XY position that is part of the system setup.

2

G-Code, CAD, and CAM discussions / Re: Mill brake when micro machining PCB boards

« on: April 19, 2022, 07:44:14 PM »

Too high a feedrate.

3

G-Code, CAD, and CAM discussions / Re: G code G91 como incrementar

« on: April 19, 2022, 07:43:19 PM »

You are going between the 2 modes, and as soon as you go back to G90 you cancel out your incremental move with you very next Y move, as G91 does not modify the work coordinates. You are mixing absolute and incremental modes in that subroutine.

4

G-Code, CAD, and CAM discussions / Re: Mill Turning_Need Advice with Mach3 Work Offsets!

« on: April 19, 2022, 02:51:30 PM »

Use the Mach3 Parameters -
#5221 is G54X, #5222 is G54Y, #5223 is G54Z, #5241 is G55X, #5261 is G56X, #5281 is G57X and I think you can see the pattern here.

#5241=[#5221 +.875] (or whatever the distance is)
#5242=#5222 (so the Y is correct)
#5343=#5223 (unless the Z locations change)

And repeat for each tool.
You can put this in its own .NC file or at the head of each file that uses that tool block

Also works for general milling -
Set first tool
G54
M98P1
G55
M98p1
G56
M98P1
Set Second tool
G54
M98P2
G55
M98P2
G56
M98P2
and so on

5

G-Code, CAD, and CAM discussions / Re: Mill Turning_Need Advice with Mach3 Work Offsets!

« on: April 19, 2022, 02:39:35 PM »

I think this will do what you want to do.

Yo know the offset of your first tool and you know the X offset from your first tool to every other tool in the block.

Parameter #5221 is G54X, #5222i is G54Y and 5223 is G54Z. #5241 is G55X, #5261 is G56X, #5281 is G57X and I think you should be able to see the pattern here.

So - to set several work offsets in X you worls do this -

%
(this assumes G54 it the first tool on the block)
(an this assumes that you only need to adjust the X value for the tools in the block )
(G54 will be set using whatever method you normally use to set a fixture offset)
(to set G55X for tool 2)
#5241=[#5221 + .875] (G55 is +.875 from G54)
#5242=#5222 (so the Y is correct)
#5343=#5223 (unless the Z locations change)
#5261=[#5221 +2.1] (G56 is +2.1 from G54)
#5262=#5222 (so the Y is correct)
#5363=#5223 (unless the Z locations change)

This also works for normal mill work.
G54
M98P1
G55
M98P1
G56
M98P1
(Do a tool change)
G54
M98P2
and so forth
Write this into the header of the programs that use this tool block and just set G54.

6

General Mach Discussion / Re: Problem with "Cycle Jog Step"

« on: October 09, 2021, 12:27:46 PM »

That sounds rather bizarre. Make sure the mechanical system is correct, because if there is any mechanical problem the motion system will not correct for it. Is this motion showing up on a DRO or on an indicator?

7

General Mach Discussion / Re: Mach3 has control but steppers run one direction only

« on: October 06, 2021, 07:46:12 PM »

You have not setup your jog keys.

8

General Mach Discussion / Custom Control Panel for Mach3 (and maybe Mach4)

« on: October 05, 2021, 09:23:14 PM »

Started playing with an Arduino Micro controller. It can be programmed to function as a keyboard device. About any keyboard key code can be sent, the board has enough pins to handle a Cycle Start button, A FeedHold button, a Stop button, Jog Keys, Jog Mode, Jog Enable toggle and others. AND No Special Drivers needed. Plugs into a USB port, is programmed using Arduino.

Just a little something to think about.

9

Mach4 General Discussion / Re: Seig 2.7

« on: December 14, 2020, 10:43:16 PM »

Have been using my KX3 still with Mach 3, and have gotten used to how fixture offsets work. It sounds like you are a bit earlier in the learning curve, and here a few things that I have found work. I have moming set up on my machine so machine zero is in the same place after a reboot. Then when Mach boots up it is in G54. I leave G54 as x 0 y0 z 0 and never change them.  I can then move the machine around to wherever the physical startpoint is for the program I want to run and then making sure there is a G55 or greater near the start of the program I then enter the numbers for X and Y into the work offset I will be using and then select that work offset in MDI and X & Y will then be 0. I have an unused tool holder - I have Tormach tooling and 1 10mm holder and no 10mm tools) and that is my reference tool or tool 0 (zero). I then use that tool to set Z. For preseting tools I have a short cyling=der I can set my tooling on, and with my height gage set to zero when set=ting on top of too zero I then measure the length of my tools and enter those lengths into the tool table.

10

General Mach Discussion / Re: M3 not working, but M4 is working. Both use same output for analog signal

« on: March 21, 2019, 09:07:00 PM »

Sorry for the delay - Changed nothing and now M3 works.Rebooted teh machine several times the first day and no change - Went to the shop the next and wanted to try some thread milling and it works just fine...