Races through first cycle upon first start up. Fine afterwards.

Wasn't exactly sure where to put this question. But this is like the third time it happened to me. Upon the initial startup I'll home out the axis, go to MEM, select a g-code file, then I hit start. And it'll race through the g code like the entire program was full of G0 commands. If I had a part in the machine it would have crashed.  It's like it ignored every G1 command. Once the cycle is done, If I hit start cycle again, it'll go through like it's supposed to. The strange part is, it does not do it every time. Is this a configuration issue or a G-Code issue or a Linux issue? 

tommylight wrote:

TheTinkeringMechanic1 wrote:

... go to MEM,...
Despite reading almost every post on this forum, i have no idea what that means.

TheTinkeringMechanic1 wrote:

... And it'll race through the g code like the entire program was full of G0 commands.  
Again, does the machine move at G0 speeds or just the gcode preview on LinuxCNC screen?

 

MEM refers to Memory Mode. This is where you select a program from the machine's internal memory and press CYCLE START button to run it automatically. 

Again? You never asked a question before this, so how is this "AGAIN"?
Ponder this: If "just the gocde preview on the LinuxCNC screen" is the only thing moving, how could it crash if I had a part in there....
Look, if you are not going to read what I posted where I clearly described what happened, there's little reason to continue this conversation. 
 

Are you sure you are running LinuxCNC?, I've never heard of MEM mode.

The phrase "again" wasn't referring to a previously asked question, it's just a "turn of phrase".

Like the other members responding here, I am a bit confused as to "MEM" in the context of Linuxcnc, as far as I was aware gcode isn't "stored in memory for reuse" but reread from a loaded file.

Now whilst you appear to frustrated it is no use getting upset when you are not getting the answer you require.

Now if you can give some details regarding your OS, version of Linuxcnc and any configuration files, that would be great. Even better would be a short video of what is happening.

One must remember that this is a multinational forum and whilst some are fluent in English it is not their native tongue.

"In CNC, MEM mode, or Memory mode (sometimes called Auto mode), is the operating mode where the controller executes a complete G-code program stored in its internal memory, allowing the machine to perform automated machining cycles for production."

When a sentence starts with "Again," it functions as a conjunctive adverb, requiring a comma immediately after it to separate it from the rest of the sentence. This usage is grammatically correct and can effectively add emphasis to repetition, the return to a previous point, or a second example.

Google -> "In CNC, MEM mode, or Memory mode (sometimes called Auto mode), is the operating mode where the controller executes a complete G-code program stored in its internal MEMORY, allowing the machine to perform automated machining cycles for production."

After being piled on by a pack of folks, that can only be described as: Deliberately obtuse.
I think I'm just going to the smart thing and just never mind.

You all have a nice day. Take care now. Bye-bye then.

I come from an industrial background, this is our only linuxcnc controlled machine. If I use a description that is common in other machines we use daily and you don't, then ask. I'd be more than happy to explain what I mean and happy to learn the "correct" description used by linux users. If you don't want to ask. Heck, Google it. It's free. 

No. Instead I get this snark comment from you:

"Despite reading almost every post on this forum, i have no idea what that means."

Guess what, that's not a question. But I explained what MEM mode was anyways. Again, google is free. 

Another person here felt it necessary be insulting as though I don't know what system I'm using... Sorry, I don't know your "linuxcnc" lingo.
THIS is how you people conduct yourselves here and act appalled by my response? 

Then you said "Again, does the machine move at G0 speeds or just the gcode preview on LinuxCNC screen?"

This was explained CLEARLY in the first text:

"And it'll race through the g code like the entire program was full of G0 commands. If I had a part in the machine it would have crashed.  It's like it ignored every G1 command."

No where in the post did I even mention "preview" of any kind. No Idea where you got that. I said if a part was in it that it would have crashed. Know what that means? That means the machine was moving....  I can't make it any clearer. I can't understand it for you. 

Now if you'll excuse me, I have an issue to figure out. 

I thought I was being quite helpful, like my esteemed colleagues I was confused about MEM.
Playing the victim, the use of the phrase "folks", the mini lecture on the use of the word again, whilst missing the comma you used to add emphasis as noted in the mini lecture and finally quoting google as to drive home the point that those that queried the whole MEM thing were plebs makes me wonder if the OP has had any oil, dirt or grease ever touch their hands.

But then again I'm a paranoid bastard that trusts no one.