I JUST EXTRUDED 156 mm of filament!

Whatever that inane error was, I think there's a chance is disappeared upon reloading marlin.  Damn me if I'm speaking too soon, I still have a few things to fix before I can run a test print.

I'll give it a shot. Even the USB cable. To clarify though that I am moving my printer fine and the solidoodle bed. So this really feels ridiculous. Next up I'll short the heater mosfet gate to 5v and see if things heat up, and also I'll switch out my atmega chip with another one I have lying around. But really, this is odd. I thought I became good with troubleshooting but I have no bloody idea what I can do.

Edit: The mosfet is fine. It's being turned on my sanguinololu. I believe by an unrelated event my wires to the heater failed. They were the stock wires...I had to replace them a while ago but I only replaced one of the wires that was broken and now the other is. It seems like low quality wire. Replacing with some nice 19 gauge silicone wire from hobbyking. MOVEMENT FORWARD. Will report updates.

(20 minutes later)
ITS ALIVE!!

Now back to testing if I still have the extrusion problems.

It has to be the host or the firmware. Or the USB cable, I guess.

I love you. but sometimes the love hurts, and we go through these periods where I feel I can't understand you. I wish it wasn't like that.

Sincerely,
-Frustrated.

I thought the new files were suitable for arduino 1.xx?  I can try again with Arduino 0.22, but I was having trouble with the board not responding (SK500 not responding errors.)

EDIT: I realized the problem with Arduino.22 was that I was used to it saying "verifying sketch" to know when I need to restart the sanguinololu (mine seems to only connect when I reset right before connecting.)  So this time I uploaded and reset right when I saw "binary sketch size.." and succesfully uploaded via arduino 0.22. Let's see if this works.

So my hot end still doesn't work after reuploading the firmware (though i did it now with 0.22) but my bed works fine. I'll investigate hardware but nothing has changed besides that I re-uploaded ...AHHHHHHHHHHHHHHHHHHHHhhhhhhhhhhhhhhhhhhhhhhhh.

Urp: No hardware issues that I can see....Heater is perfectly functional, I just can't get it to run.

I got home and started progressively increasing my manual extrude commands. I tried E10, E30, E50, E100, E150, and I believe it was on E150 that my heater turned off. I didn't get the 'too long extrusion prevented' message but I assume that's because I was in manual mode. When I went through my gcode for a piece, there in fact were several E15X commands.

This doesn't quite explain why it triggers an excessively long extrusion...My max limits are definetively 159+150 or 160+148 (I don't know which is used for that definition), but if reloading marlin helps...I'll be all set. Maybe somehow mysterious one of my limits was broken...I don't know!

A cursory glance at my Gcode however suggests that it never commands anything as X159.xx  or X160.

So is #define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH)this the only way to get a "too long extrusion"?

If my repetier has my printer defined as Y_size=148mm, and X_size=160, while my marlin firmware says X_max = 159, Y_max=150, I can't imagine I'd ever have a problem. 

My prints that I'm running are somewhat large...but not beyond my build platform. Moreover, the oddest thing, that is driving me nuts, is that a print that worked a few days ago failed yesterday. Maybe I can try a small cube, because admittedly that old print was rather wide.

I'm still at work but I'll give a shot at reloading the firmware but it seems like such stab in the dark (because it is.) If anyone has suggestions for other stabs to take, I'd be very grateful.

I'm seriously disappointed that I forgot how to read german in less than four years. Oh shit, as I wrote that I realized it's been four years since I took german for three years :O:O. Anyway, life-crisis are not for this forum.

For some reason the german page doesn't translate well, but I'm still at a loss. Combed over every setting I could find.

I'll also try to reload marlin in case ---well, I'm desperate and don't know whats happening.

I got home and tried a print (the exact gCode) that worked two days ago, and it failed.

Woah. I will check my firmware settings, but I have no idea- there have been no major leads that changed =-/

I laughed at the pointers joke.

Only time I've seen "too long extrusion prevented" is when I hit the extrude button like 20x.

Can you run some old gcode?

Yay! I didn't notice your post first pass through, but I'm glad to have amused. Tis my life goal to keep the world punny.

Good call on running the old gcode. I somehow can't connect to my computer today at work (I must have not logged into my account at home, or left my computer offline), but I'll set it up when I get home.

First failed file:
https://dl.dropboxusercontent.com/u/361 … ight.gcode
Second failed file:
https://dl.dropboxusercontent.com/u/361 … uide.gcode

What I believe is the config file that I uploaded a few weeks ago:
https://dl.dropboxusercontent.com/u/361 … guration.h

It looks like I have prevent dangerous extrusion on, but I can't tell what parameter I look for in the Gcode to discover if I have a crazy extrusion length. I can also go ahead and try the Gcode of some file I successfully printed a few days ago, to ensure that it's not recent.

If I have a better idea what would be considered a dangerous extrusion for me (not sure what in the config file defines that), I can write something tiny in python to search through my gcode for such a value. 

Thanks for the response! I felt discouraged yesterday and wasn't sure how to move forward, but now at least there are some ideas.

#define PREVENT_DANGEROUS_EXTRUDE
//if PREVENT_DANGEROUS_EXTRUDE is on, you can still disable (uncomment) very long bits of extrusion separately.
#define PREVENT_LENGTHY_EXTRUDE

#define EXTRUDE_MINTEMP 150 //{SD Patch}
#define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances.

What were you printing? It may have sliced wrong and thrown a errant value in. Do you have your G-Code?

Only time I've seen "too long extrusion prevented" is when I hit the extrude button like 20x.

Can you run some old gcode?