Need help raising the Hot end Max temp inside the firmware.

[elqisqeyano]

I tried everything. I use Arduino V 0023 and load Marlin into it, I then go into config H down to the #define HEATER_0_MAXTEMP and change that to 275, I then save and upload to Rambo. When I go to print from SD card the MAX temp In the Control menu of the LCD Controller still reads 260C max. I need to raise the failsafe limit cause I have a new E3D hot end able to achieve higher printing temps for these new materials coming out. If I can't raise that MAX temp these new filaments and new hot ends might as well be useless with the Rostock Max if you can't go over 260C.

[Polygonhell]

I tried everything. I use Arduino V 0023 and load Marlin into it, I then go into config H down to the #define HEATER_0_MAXTEMP and change that to 275, I then save and upload to Rambo. When I go to print from SD card the MAX temp In the Control menu of the LCD Controller still reads 260C max. I need to raise the failsafe limit cause I have a new E3D hot end able to achieve higher printing temps for these new materials coming out. If I can't raise that MAX temp these new filaments and new hot ends might as well be useless with the Rostock Max if you can't go over 260C.

Commenting out that line in configuration.h will disable the checks altogether.
Can you post a picture of the temperature graph in Repetier around the time it reaches 260, it'll give me some idea of what's going on.

[elqisqeyano]

I tried everything. I use Arduino V 0023 and load Marlin into it, I then go into config H down to the #define HEATER_0_MAXTEMP and change that to 275, I then save and upload to Rambo. When I go to print from SD card the MAX temp In the Control menu of the LCD Controller still reads 260C max. I need to raise the failsafe limit cause I have a new E3D hot end able to achieve higher printing temps for these new materials coming out. If I can't raise that MAX temp these new filaments and new hot ends might as well be useless with the Rostock Max if you can't go over 260C.

Commenting out that line in configuration.h will disable the checks altogether.
Can you post a picture of the temperature graph in Repetier around the time it reaches 260, it'll give me some idea of what's going on.

So inserting two forward slashes,//, next to #define HEATER_0_MAXTEMP will disable the failsafe feature completely? I will be posting the pick now as soon as I get it done, be a few minutes.

[elqisqeyano]

I tried everything. I use Arduino V 0023 and load Marlin into it, I then go into config H down to the #define HEATER_0_MAXTEMP and change that to 275, I then save and upload to Rambo. When I go to print from SD card the MAX temp In the Control menu of the LCD Controller still reads 260C max. I need to raise the failsafe limit cause I have a new E3D hot end able to achieve higher printing temps for these new materials coming out. If I can't raise that MAX temp these new filaments and new hot ends might as well be useless with the Rostock Max if you can't go over 260C.

Commenting out that line in configuration.h will disable the checks altogether.
Can you post a picture of the temperature graph in Repetier around the time it reaches 260, it'll give me some idea of what's going on.

Here is that image you requested...

http://imageshack.us/f/854/tempcurve.png/

Thermistor reading 260C but I put temp probe on hot end peek area inside and it reads 248 true temp. I am going to need more heat, I ordered hot end able to withstand temps up to 400C, not that I need it to go that high, I do need a max of 300C for these new Nylon materials that print at true 250C to 268C. It's the reason I want to disable the failsafe feature. I am not going to burn myself up.

[elqisqeyano]

At true 248C I can barely do ABS.

[elqisqeyano]

//#define HEATER_0_MAXTEMP 350
#define HEATER_1_MAXTEMP 350
#define HEATER_2_MAXTEMP 350
#define BED_MAXTEMP 120
Even commenting it out doesn't disable the fail safe feature, it must be set from factory in the Rambo board. It set at 260 Max. I don't like to be governed, that's for trucks. LOL

[Polygonhell]

//#define HEATER_0_MAXTEMP 350
#define HEATER_1_MAXTEMP 350
#define HEATER_2_MAXTEMP 350
#define BED_MAXTEMP 120
Even commenting it out doesn't disable the fail safe feature, it must be set from factory in the Rambo board. It set at 260 Max. I don't like to be governed, that's for trucks. LOL

But you're setting it to 260 in the screen shot and it seems to get there.
Are you saying you can't set it higher in Repetier Host?
If so just use M104 S275 or whatever you want.

There is no hardware on the RAMBO board that can limit it.

[elqisqeyano]

//#define HEATER_0_MAXTEMP 350
#define HEATER_1_MAXTEMP 350
#define HEATER_2_MAXTEMP 350
#define BED_MAXTEMP 120
Even commenting it out doesn't disable the fail safe feature, it must be set from factory in the Rambo board. It set at 260 Max. I don't like to be governed, that's for trucks. LOL

But you're setting it to 260 in the screen shot and it seems to get there.
Are you saying you can't set it higher in Repetier Host?
If so just use M104 S275 or whatever you want.

There is no hardware on the RAMBO board that can limit it.

It seems to get there, but when I put my temp probe inside hot end area it reads 248C but repetier and LCD controller read 260 and hit the failsafe. So, I tried increasing the HEATER_0_MAXTEMP to 275 C so I can raise it to about 265 and get a good 250C. But the MAX Temp setting in the LCD MENU under CONTROL TEMPERATURE reads 260C. If I try to raise it passed 260C it won't let me, neither there nor where you control the actual temp, I turn dial on LCD controller clockwise but it maxes out at 260C. Not letting me get passed that temp to reach a good true 250C

[elqisqeyano]

Also, I print from SD Card cause file is too large to print from Repetier, Pronterface nor Cura.

[Polygonhell]

I just set mine to 275 which is my firmware limit without issues.
I just looked at the Marlin code, it doesn't clamp anything I can see on input, and all it does is busy wait if the temperature is higher than the safety number.
If you load up Repetier Host or and type
M104 S275
what happens?

[elqisqeyano]

I just set mine to 275 which is my firmware limit without issues.
I just looked at the Marlin code, it doesn't clamp anything I can see on input, and all it does is busy wait if the temperature is higher than the safety number.
If you load up Repetier Host or and type
M104 S275
what happens?

It heats it to 275 C. So even printing from SD card directly from the LCD I should still monitor through Repetier or what ever program so I can set it to higher temps through them?

[Polygonhell]

I just set mine to 275 which is my firmware limit without issues.
I just looked at the Marlin code, it doesn't clamp anything I can see on input, and all it does is busy wait if the temperature is higher than the safety number.
If you load up Repetier Host or and type
M104 S275
what happens?

It heats it to 275 C. So even printing from SD card directly from the LCD I should still monitor through Repetier or what ever program so I can set it to higher temps through them?

No if you have the temp set to 275 in the GCode file it would do the same thing.
You'll have to re slice the object and change the temperature in the slicer to change the temperature to be higher.
You can watch the graph if you want, but it does you no good.

[elqisqeyano]

Oh Ok, Poly. I see. Even when printing from SD card, if you want full control over temps you have to use the software whether it be repetier, pronterface to monitor and fully control the setting while printing?

[elqisqeyano]

I just set mine to 275 which is my firmware limit without issues.
I just looked at the Marlin code, it doesn't clamp anything I can see on input, and all it does is busy wait if the temperature is higher than the safety number.
If you load up Repetier Host or and type
M104 S275
what happens?

It heats it to 275 C. So even printing from SD card directly from the LCD I should still monitor through Repetier or what ever program so I can set it to higher temps through them?

No if you have the temp set to 275 in the GCode file it would do the same thing.
You'll have to re slice the object and change the temperature in the slicer to change the temperature to be higher.
You can watch the graph if you want, but it does you no good.

Oh my finally some one understands what I was experiencing. Thanks a bunch Poly, gonna be sending you a cracker. LOL Yeah I figured I could print without my computer being turned on, So everything I put in the Gcode transfers over and overwrites and prints according to my slice intructions

[elqisqeyano]

Another problem solved by the contributors here at the seemecnc forum. Thanks to Polygonhell.

Namaste.

This thing was driving me insane. I need those high temps.

[elqisqeyano]

Thank you Polygonehell. Thanks to your instructions, I am finally printing Taulman 618 Nylon very well. At 255 C. It's stuck like glue to the Garolite LE. No tape, no glue, nothing but the Garolite LE plate on top of the Onyx heat bed. Onyx heat bed is set at 115C. Prints are not splitting, cracking, warping etc... Heat is what I needed. I was setting it at 255C thinking it would be true 255C at the hot end but I was mistaken. Thanks to your instruction about the gcode, I set Slic3r settings to 269C, which gives me a true 255C, perfect for this taulman. It's pretty clean and smooth print accept for some rough exterior walls which I am going to have to fine tune. Layer height is set at 0.25 with a fill density at 0.4. I might need to switch to .20 or .15 Layer height and an infill of .35 to smooth it out. What you think? It's a pretty tall and thick part and it's not warping so far am half way through the print. Large 15MB file print.