Ender 3 ignoring Cura settings

[sak1364 0]

Another 3D printing newbie here with a question.

I'm using UltiMaker Cura 5.3.1 for Mac and I have an Ender-3 S1 printer.

As I've tried using different materials, like PETG, I have changed the settings according to recommendations I've found online. The problem is, some of the settings don't change on the printer.

 

For example, I changed the temperature and that works fine. I also change the print speed to 50 and the fan speed to anything else (including off altogether). When I start the print the Ender control panel display shows the print and fan speeds at 100 and that's how fast it goes. I can slow the print speed on the control panel and it'll print slower, but I can't change the fan speed. In fact I don't think I've ever heard the fan run at any speed other than full.

 

So my question is, why are the Cura settings being ignored? Am I doing something wrong?

Perhaps these questions are best asked in an Ender forum but I thought I'd try here first.

 

Thanks for any advice.

 

 

[Slashee_the_Cow 22]

It would be helpful if you could provide the gcode for the print (and the Cura project file, if you have it).

 

On 8/12/2023 at 1:02 AM, sak1364 said:

For example, I changed the temperature and that works fine. I also change the print speed to 50 and the fan speed to anything else (including off altogether).

Did you change the settings on the printer or in a profile in Cura? The printer's settings for things like print speed and fan speed will be overridden by the gcode Cura produces, so you need to look through all the options because there's things like different temperatures, print speeds or fan speeds for different layers, stuff like that.

 

One thing I'll admit is weird: I've never experienced a situation where there's anything I can't change mid-print using the control panel on my Ender 3 v2 Neo. Make sure you're running the latest firmware is about all I can suggest.

[GregValiant 1,110]

Sometimes it's a question of perception.

The "FeedRate" shown on the LCD is a percentage.  When it is at 100% then all the speeds in the gcode will pass through the printer/planner unaltered.  If you tune it to 75% then the printer planner will take all speeds and cut them to 75% of whatever they are in the gcode.  The FlowRate works the same way and is a percentage.  If your gcode was set up to print at 50mm/sec and the LCD says 100% then the print will be at 50mm/sec.  If you change the LCD to 75% then the actual print speed will adjust to 0.75 * 50 or 37.5mm/sec.

The Hot End fan generally cannot be controlled using stock firmware.  It can be switched (Ex: "turn on at 50°") when the firmware is set up that way.  The speed of the hot end fan cannot be controlled - it's either on or off and some of them are loud.

 

M106 lines in the gcode control the Layer Cooling Fan speed.  They are pulse width modulation so in the gcode you would see "M106 S255" if the fan was at 100% speed and M106 S0 will turn the fan off (as will M107).  The fan icon on the LCD should show the Layer Cooling Fan speed as a percentage of full speed.

Edited August 16 by GregValiant

[sak1364 0]

Thanks for the replies. My apologies. I was expecting an email alert about replies but didn't see any, then forgot I had asked the question. 

 

I'llKjostad - SweetLife.gcodeKjostad - SweetLife.gcode attach the GCode file but I did not save a Cura file for it.

 

I did make some changes to settings. But I'm only guessing based on suggestions in videos I've found online. It's a bit overwhelming when you see how many things can be set.