temperature control

[jmoney 1]

all of a sudden all of my prints stopped extruding.

I noticed very thin brim then almost nothing.

I restarted print and manually overode the temperature from 210-219 and it seems to be much smoother.

there are pla temperature settings in CURA, I set my own temp but when printing it still sits at 210

then I went on device to material - settings - customize and changed them but nothing worked

then I downloaded material.txt and changed the text files on computer and imported, but nothing seems to change. Still at 210.

perplexed.

thanks in advance

[Remy 13]

Couple of questions first: What type of printer do you have (UMO/+, Ultimaker 2/Extended or Plus version)? You should also add this to your profile so it's easier to get help and advice from everyone on the forums :)How many printing hours have you logged? You can check this by navigating to MAINTENANCE>ADVANCED menu and clicking 'Runtime stats' near the bottom.

It's sounding like you might have some wear in the hot end. If it's a regular 2 or UMO/+, the PTFE coupler will wear over time and need to be replaced. (This will probably happen eventually with Plus models but the new TFM part they have installed is more durable.) Usually this is between 200-300 print hours, but if you're printing materials like ABS or CPE this can happen faster than that. When the PTFE starts wearing down, you get heat creep or the filament can get snagged on the PTFE as it deforms and will have a hard time getting through the hot end to reach the nozzle. This affects flow and results in under extrusion.

You might also have a bed leveling problem if you have a really thin brim. Pictures of your failed print/brim would be nice if you have them

You can't use Cura to set temperatures on an Ultimaker machine profile. The temperatures are set in the firmware automatically. You can set up or customize the material profile settings by going to the MATERIAL>SETTINGS menu and clicking 'Customize' I think it's called. There you can set the nozzle temp to whatever you'd like for that material profile (e.g. PLA default is 210 C, but if you want to use 220 C for example you can change that to the default for the PLA profile). *Edit: Sorry, I hadn't caught the part you said you did this already. I would try a factory reset, then changing the settings again using the printer LCD. You should also update your firmware to the latest version if you haven't already.

Otherwise if you really want to use Cura to set it, you need to lie to Cura and tell it you have a 3rd-party machine and set everything up for your "new" machine manually e.g. build volume etc. I think the printer LCD will then give you a message when you try to print gcode that you generated like that, something along the lines of "Settings in the gcode will override the firmware."

Edited September 2, 2016 by Guest
Added info

[jmoney 1]

Remy,

thanks for getting back to me

it's a UM2+ after upgrading it

turned out the problem was the gear similar to this

https://ultimaker.com/en/community/22360-ultimaker-2-suddenly-not-feeding

first print after fixing up seems to be cruising. gotta print the mod to keep it from happening again.

and will update my profile..

nice collection..

[Remy 13]

I've seen that issue happen a couple of times, luckily it's a pretty easy fix once you figure out what's going on. Glad to hear you were able to find the problem and get it working

If in the long run the issue recurs or you can't secure the gear on the stepper well enough on your own, you should be able to get a replacement from fbrc8, which is Ultimaker's US warranty provider. I've seen them replace the part for this issue before as it was originally a design flaw and not the user's fault. I'd contact the reseller you bought the upgrade kit from or email fbrc8 directly to see about this.

Thanks, I wish I did own all the Ultimakers listed in my profile! Truth is I only work with them at a UM reseller here in the US. One day I'll hopefully have an Ultimaker in my home office too though

[rowiac 53]

Just to add a bit of info here for other new UMO/UMO+ owners like myself--for the UMO(+) for temperatures are set in Cura rather than on the machine like on the UMO2(+). I believe you can set some default settings for PLA and ABS on the machine, but I have not messed with those, since whatever my settings are in the Cura gcode overrides them.

Also, as far as I know there is no way to check runtime stats on the UMO(+), which is too bad.