Mach 3 skipping G-Codes?

[ajk2004]

Hello everyone,
I am relatively new to mach 3 and sheetcam and am having what I hope is a minor hiccup. I have a plate marker I am trying to get going. I am doing some tests with it and am having a problem with it. I posted it on here because I'm guessing it could happen to me while plasma cutting too. I am just doing a lincoln electric logo. If you look at a few of the letters on the picture, parts of the letter never engraved. The plate marker stopped like it was done and went on to the next letter. Does anyone else have problems with this? I have the C&CNC Bladerunner package. Thanks.
Andy

lincoln.jpg (131.74 KiB) Viewed 1517 times

[sphurley]

If you run the program in the air (not touching the plate) does it still skip?
I have had issue with my marker stop vibrating (for lack of a better word) until the next start command.
It runs around the letter just stops engraving.
I have an oiler on it and still have had issues. Not really figured it out.

[ajk2004]

Sphurley,
Thank you for your reply. It stops vibrating, but it is because mach is telling it to. It stops and goes to another letter without finishing the letter. I ran it on air (without the aux port plugged in and it runs and doesn't finish certain letters). When you look at the screen in mach, it shows that the part of the word was not ran also. Not sure why. Everything looks good in sheetcam. Thanks.
Andy

[WyoGreen]

My guess would be that the letter has open lines in it, so sheetcam skips to another letter and will eventually come back and do the skipped line. You might try posting your dxf file so others can take a look at it.

Steve

[tcaudle]

Its not MACH. I would guess the last segment is just not in the G-code . There were problems with older POSTs that would cause it to skip tthe FIRST segment because it ran the offset but never turned on the plate marker. Have not seen it on the final segment. Is this a mixed cut file (plate marker + Plasma ) or just plate marker. It won't BTW happen on plasma beacuse there is no offsets and it uses a different M code and output

[msimpson99]

I had problems with sheetcam leaving out some commands. It all has to do with the modal commands. These commands will not issue the command if the command was issued previously. This keeps double lines out of some of the more advanced functions as they can get complicated. The problem is sheetcam can get lost and thus some of the modal commands get left out.

To solve my issues I pretty much rewrote most of the post processing sections and replaced most of the commands in the Pendown section with post.text and post.number commands.

[ajk2004]

Thank you guys for your input. Tom, this IS a mixed file. I want to engrave the piece and then cut it out. The post I am using is one I got recommended to me from luke. It is the 11J I believe. It could be the beginning of the letter isn't engraving. When I look at it and it stops, it looks like it is the end though. How would I go about remedying this situation? Thanks.
Andy

[tcaudle]

Thank you guys for your input. Tom, this IS a mixed file. I want to engrave the piece and then cut it out. The post I am using is one I got recommended to me from luke. It is the 11J I believe. It could be the beginning of the letter isn't engraving. When I look at it and it stops, it looks like it is the end though. How would I go about remedying this situation? Thanks.
Andy

Send me a direct email and ask for the 11M4 post. If its the POST causing it it should fix it. I do not recall it ever not finishing a shape only missing the beginning but its a place to start.YOu can send me the SVG file OR the SheetCAM job file. I have development sytem in my office that I can run simulations on.

[ajk2004]

Does anybody have experience with the 11M4 Post? I just imported it into sheetcam and now I get an error message in Mach that states, "no probe active." Not sure what this means. I could cut with no problems and after I put this post in now I get this message. This is getting somewhat frustrating. I am trying to put the 11J post back in because I could cut with that one and I can't even get it back. Thanks for the help.
Andy

[BTA Plasma]

It means you have not set your probe to active and port 1 pin 13 in Mach3/config/ports and pins/input signals

[ajk2004]

Well I set the pin to active and now my ohmic isnt functioning right. It is sensing but continues past touching and my gantry is lifting up. I have been using the 11J post for the last month or so and have been test cutting with fairly decent results. I was having some issues with my plate marker and Tom C. recommended importing the 11M4 post. Once I did that I was having the probe error. I feel like it is one step forward and three steps back.... Seriously guys, thanks for the help.
Andy

[ajk2004]

Well I used the 11J post again, and no problems cutting. I guess I will have to call the C and CNC boys tomorrow and see what I can get figured out. Thanks again guys.