[diycnc]

our router changes depth without being commanded.

video
https://youtu.be/PbxTkkshTr8


code

M90
G90
G71
G75
G97 S19500
G00 T11
G00 X406.4 Y330.2 Z-13.175
M12
G00 Z-4.275
G01 Z-2.921 F1500.
F1500.
G01 X279.4
G03 X279.4 Y279.4 Z-2.921 I279.4 J304.8
G01 X406.4
G02 X406.4 Y228.6 Z-2.921 I406.4 J254.
G01 X279.4
G03 X279.4 Y177.8 Z-2.921 I279.4 J203.2
G01 X406.4
G02 X406.4 Y127. Z-2.921 I406.4 J152.4
G01 X279.4
G03 X279.4 Y76.2 Z-2.921 I279.4 J101.6
G01 X406.4
G02 X406.4 Y25.4 Z-2.921 I406.4 J50.8
G01 X50.8
G02 X50.8 Y76.2 Z-2.921 I50.8 J50.8
G01 X177.8
G03 X177.8 Y127. Z-2.921 I177.8 J101.6
G01 X50.8
G02 X50.8 Y177.8 Z-2.921 I50.8 J152.4
G01 X177.8
G03 X177.8 Y228.6 Z-2.921 I177.8 J203.2
G01 X50.8
G02 X50.8 Y279.4 Z-2.921 I50.8 J254.
G01 X177.8
G03 X177.8 Y330.2 Z-2.921 I177.8 J304.8
G01 X50.8
M22
G97 S18000
G00 T2
G00 X-4.7525 Y0. Z-13.175
M12
G00 Z-4.275
G01 Z0.381 F1200.

[diycnc]

any ideas, its a multicam 5000

[mactec54]

any ideas, its a multicam 5000

The program does not look correct, remove all the Z axes move from the program, they should not be in there, like below

There are a lot of other codes in this program that also don't look like a fit as well, look up what G and M codes that work with your machine and only use them


M90
G90
G71
G75
G97 S19500
G00 T11
G00 X406.4 Y330.2 Z-13.175
M12
G00 Z-4.275
G01 Z-2.921 F1500.
F1500.
G01 X279.4
G03 X279.4 Y279.4 I279.4 J304.8
G01 X406.4
G02 X406.4 Y228.6 I406.4 J254.
G01 X279.4
G03 X279.4 Y177.8 I279.4 J203.2
G01 X406.4
G02 X406.4 Y127 I406.4 J152.4
G01 X279.4
G03 X279.4 Y76.2 I279.4 J101.6
G01 X406.4
G02 X406.4 Y25.4 I406.4 J50.8
G01 X50.8
G02 X50.8 Y76.2 I50.8 J50.8
G01 X177.8
G03 X177.8 Y127. I177.8 J101.6
G01 X50.8
G02 X50.8 Y177.8 I50.8 J152.4
G01 X177.8
G03 X177.8 Y228.6 I177.8 J203.2
G01 X50.8
G02 X50.8 Y279.4 I50.8 J254.
G01 X177.8
G03 X177.8 Y330.2 I177.8 J304.8
G01 X50.8
M22
G97 S18000
G00 T2
G00 X-4.7525 Y0. Z-13.175
M12
G00 Z-4.275
G01 Z0.381 F1200.

[diycnc]

We have been using the same post for 5+ years with no issues.

Also multicam has supplied a test program and machine still does it, its a problem with archs.


also looking at your code, its exactly the same as mine, looks like a copy/paste..

[mactec54]

We have been using the same post for 5+ years with no issues.

Also multicam has supplied a test program and machine still does it, its a problem with archs.


also looking at your code, its exactly the same as mine, looks like a copy/paste..

It is copy/paste, but look again it is completely different

It could well be a problem with arcs, but the program you posted is incorrect, try what I posted and change the G75 to a G74 and remove the M12

M90
G90
G71
G75 ( Try a G74 Here )
G97 S19500
G00 T11
G00 X406.4 Y330.2 Z-13.175
M12 ( remove the M12 )
G00 Z-4.275
G01 Z-2.921 F1500.
F1500.
G01 X279.4
G03 X279.4 Y279.4 I279.4 J304.8
G01 X406.4
G02 X406.4 Y228.6 I406.4 J254.
G01 X279.4
G03 X279.4 Y177.8 I279.4 J203.2
G01 X406.4
G02 X406.4 Y127 I406.4 J152.4
G01 X279.4
G03 X279.4 Y76.2 I279.4 J101.6
G01 X406.4
G02 X406.4 Y25.4 I406.4 J50.8
G01 X50.8
G02 X50.8 Y76.2 I50.8 J50.8
G01 X177.8
G03 X177.8 Y127. I177.8 J101.6
G01 X50.8
G02 X50.8 Y177.8 I50.8 J152.4
G01 X177.8
G03 X177.8 Y228.6 I177.8 J203.2
G01 X50.8
G02 X50.8 Y279.4 I50.8 J254.
G01 X177.8
G03 X177.8 Y330.2 I177.8 J304.8
G01 X50.8
M22
G97 S18000
G00 T2
G00 X-4.7525 Y0. Z-13.175
M12
G00 Z-4.275
G01 Z0.381 F1200.

[diycnc]

OK i looked again and you removed the z depths from the g02/g03 we have already tired with and without the z height listed, no difference, still changes the z while cutting.

actually if you look in the video there is no z calls on the arch, we tried both ways. i just grabbed the wrong code with while pasting into this forum.

[MCPservice]

Most of the time with depth issues, especially if you haven't changed software or this is a new install. It is more then likely a mechanical issue, you have taken a test program and the machine did the same thing.

1. check your belt and pullleys, something maybe lose
2. check your tooling the bit could be pulling out.
3. check to see if your ball screw is not shifting on you,
4. It could be a board issue
5. When the depth changes is this something that is constant, or is each cut different.

[diycnc]

The machine changes depth by around 1mm it also knows its doing this as its reported on the pc.. it isnt mechanical issue. Watch the video and keep eye on z height

[mactec54]

The machine changes depth by around 1mm it also knows its doing this as its reported on the pc.. it isnt mechanical issue. Watch the video and keep eye on z height

I watched it, and that is very strange, the way it is doing that, the program you posted is not correct, the arc's don't start and end correctly, so I would go back to the drawing and check that part as well, I tried to run it on a different control, and got part of it to run, but it failed on the arc's Your I and J values are incorrect

Are you cutting on the line ( cutter center on the line ) or the cutter is offset from the line, what size cutter and what are the dimensions of the pattern

[MCPservice]

Question what CAD/CAM program are you using...

[diycnc]

Master cam/ alma cam/ also the Canadian vendor made code on multicams software, all 3 changes depth on G02 G03 If i only do G01 its fine, also if i do an arch 1mm+ past max depth (max depth active) it doesn't do it.. totally has to be software or firmware /electronic issue on machine or machines workstation.

[diycnc]

I watched it, and that is very strange, the way it is doing that, the program you posted is not correct, the arc's don't start and end correctly, so I would go back to the drawing and check that part as well, I tried to run it on a different control, and got part of it to run, but it failed on the arc's Your I and J values are incorrect

Are you cutting on the line ( cutter center on the line ) or the cutter is offset from the line, what size cutter and what are the dimensions of the pattern

the code is setup to use absolute arch centers. we do not use any cutter compensation and the tool is centered.

[Jim Dawson]

What would happen if you added a G17? That might force it into XY moves. If it was always working before and just started acting weird it might be a controller issue.

M90
G90
G71
G75
G97 S19500
G00 T11
G00 X406.4 Y330.2 Z-13.175
M12
G00 Z-4.275
G01 Z-2.921 F1500.
F1500.
G17 ( add G17 here )
G01 X279.4
G03 X279.4 Y279.4 Z-2.921 I279.4 J304.8
G01 X406.4
G02 X406.4 Y228.6 Z-2.921 I406.4 J254.
G01 X279.4
G03 X279.4 Y177.8 Z-2.921 I279.4 J203.2
G01 X406.4
G02 X406.4 Y127. Z-2.921 I406.4 J152.4
G01 X279.4
G03 X279.4 Y76.2 Z-2.921 I279.4 J101.6
G01 X406.4
G02 X406.4 Y25.4 Z-2.921 I406.4 J50.8
G01 X50.8
G02 X50.8 Y76.2 Z-2.921 I50.8 J50.8
G01 X177.8
G03 X177.8 Y127. Z-2.921 I177.8 J101.6
G01 X50.8
G02 X50.8 Y177.8 Z-2.921 I50.8 J152.4
G01 X177.8
G03 X177.8 Y228.6 Z-2.921 I177.8 J203.2
G01 X50.8
G02 X50.8 Y279.4 Z-2.921 I50.8 J254.
G01 X177.8
G03 X177.8 Y330.2 Z-2.921 I177.8 J304.8
G01 X50.8
M22
G97 S18000
G00 T2
G00 X-4.7525 Y0. Z-13.175
M12
G00 Z-4.275
G01 Z0.381 F1200.

[MCPservice]

Just out of curiosity what happens when you run a old successful program?

What would happen if you added a G17? That might force it into XY moves. If it was always working before and just started acting weird it might be a controller issue.

M90
G90
G71
G75
G97 S19500
G00 T11
G00 X406.4 Y330.2 Z-13.175
M12
G00 Z-4.275
G01 Z-2.921 F1500.
F1500.
G17 ( add G17 here )
G01 X279.4
G03 X279.4 Y279.4 Z-2.921 I279.4 J304.8
G01 X406.4
G02 X406.4 Y228.6 Z-2.921 I406.4 J254.
G01 X279.4
G03 X279.4 Y177.8 Z-2.921 I279.4 J203.2
G01 X406.4
G02 X406.4 Y127. Z-2.921 I406.4 J152.4
G01 X279.4
G03 X279.4 Y76.2 Z-2.921 I279.4 J101.6
G01 X406.4
G02 X406.4 Y25.4 Z-2.921 I406.4 J50.8
G01 X50.8
G02 X50.8 Y76.2 Z-2.921 I50.8 J50.8
G01 X177.8
G03 X177.8 Y127. Z-2.921 I177.8 J101.6
G01 X50.8
G02 X50.8 Y177.8 Z-2.921 I50.8 J152.4
G01 X177.8
G03 X177.8 Y228.6 Z-2.921 I177.8 J203.2
G01 X50.8
G02 X50.8 Y279.4 Z-2.921 I50.8 J254.
G01 X177.8
G03 X177.8 Y330.2 Z-2.921 I177.8 J304.8
G01 X50.8
M22
G97 S18000
G00 T2
G00 X-4.7525 Y0. Z-13.175
M12
G00 Z-4.275
G01 Z0.381 F1200.

[diycnc]

It doesnt work, the program we noted the issue on was years old run hundreds of times previously.

[MCPservice]

Just to clarify, this program was old and it has not been reoutput, this program was just in your DNC folder and you have tried to run a previously functioning program.

Then it is two thngs

1. DNC has forgotten some setting, if you are using the old JobServer for communications. It can get scrambled in its settings.

2. You have a control board problem. If this is a M24 K520 board, you options are:

a. Upgrade to a new control board, I have a customer in Grand Rapids, the quote for upgrade was I believe 19K.
b. Upgrade to another controller (Mach 3) last choice
c. Find a older control board, there maybe a few out there. The board will need to be programmed.
d. Get the board repaired but this is something I have been trying to do for the pass few years now to find someone that can repair.




QUOTE=diycnc;2119366]It doesnt work, the program we noted the issue on was years old run hundreds of times previously.[/QUOTE]