Print temp changes

hi i have a taz 6 3d printer and every time i use cura to upload gcode, i set the printers required hot end and bed temperatures but octoprint or cura keeps changing the hot end to 170 degrees C. for example im trying to use t-glase which is 230 degrees for the hotend and 60 for the bed, when i upload a print using cura or just in general the temp changes the hotend to 170 and wont change back. does anyone have any ideas?

Is that actually during printing? I’m pretty sure the re-wipe temperature is hard-coded to 170 °C in the firmware (a constant frustration for me when I print with nylon).

Maybe check your startup code in Cura to see if there’s an errant M104 or M109 being sent prior to printing?

I agree with @cg49me … this sounds like the wipe temp.

If you go into Cura “Preferences” and look at “Printers” -> pick your TAZ 6 (whatever you named it) -> “Machine Settings” you can view the “Start G-code”

This code will be sent before the rest of the g-code in your print jobs.

This gcode normally heats the hot end to whatever the “soften” temp is and retracts some filament so that it does not ooze when the printer is performing the bed leveling (any filament between the nozzle and the washers would prevent it from sensing the bed… it uses electrical conductivity to sense the washers … so the nozzle and washers need to be clean of all filament.)

Next the nozzle should drop the temp down to the “wipe” temp. It will then perform the wipe.

Next it goes to the probe temp and performs the bed leveling.

Lastly, it raises the hot-end back to the print temp for “layer 0” of your part (as defined by Cura) and also raises the bed temp.

Once it reaches those temps, it will re-prime the nozzle with the filament it previously retracted… and starts printing.

To find out what all those temps are… while still in Cura “Preferences” go into “Materials” then pick your t-glase. Select the “Print settings” tab of the material.

You should see it all listed out there. Those are the defaults. But if you close out the Preferences panels and go back to your job settings, you’ll see all those same settings listed again in the “Materials” section of the job and you can tweak it there as well (and those will override what you saw in the Preferences).

On my Cura install, I see the “probe”, “soften”, and "wipe’ temperatures are all set to 170°C (but I’m using a TAZ Workhorse so your temps might be slightly different.)

You might see “Printing Temperature Initial Layer” (that’s the temp that the g-codes will set before printing). After the initial layer it should switch to the normal “Printing Temperature” (which might just be the same temp … but Cura will let you print the initial layer at a different temp than the remaining layers.)

OK, yes it is a wipe temp but in cura the temp for t-glase is hot end 170 and bed 60 so will it be fine if i just change the material setting in preferences or do i have to change other stuff also?

and how can i change the material temps in cura, if possible