gr5

Post the project file (it will contain your model). Do "file" "save program..." and post that file here. I'm wondering if your infill is non-existant or too sparse or if you don't have enough top layers - it takes a few layers (maybe 4 or 6) to recover from the bridging.

I know those guys. Smart. They should be able to set you up with the procedure (it's a pdf they can send you) along with the location of the recovery image but you'll probably have to locate or buy a uSD card.

Did you check #1 above?

Unplug the air handler and material station and reboot it a few more times. Give it 5 or 10 minutes each time (no more). If it still won't boot you need to do the recovery procedure which involves uSD. Contact your reseller as there are dangerous voltages in S5 printers. What country are you in Nicko? I'd buy an 8GB uSD right this minute (possibly issues if over 32GB) if you don't already have one. In fact get at least two because if your flash partitions got damaged the recovery can get more complicated and it saves a lot of time to have to uSD cards. more info here but I suspect you can recover the normal way: https://community.ultimaker.com/topic/20024-recovering-a-bricked-um3/ and if that doesn't work more details here: http://gr5.org/unbricking/

@tinkergnome ? Für englisches Menü Material Settings Customize Temperature Temperature: .4 (Wert ändern und klicken) Store as Preset ABS <--- wichtigster Schritt

Physically large objects should be fine but large files not so much. Maybe there are too many triangles. Report back how many triangles there are and try to lower it below say 50,000 triangles: http://www.shapeways.com/tutorials/polygon_reduction_with_meshlab @nallath any ideas?

The logs typically last for a long time - weeks or more. If you know the date it happened it's not hard to find the corresponding information in the logs. Anyway if it's intermittent then it is indeed difficult to fix.

I think it used to wrap around the staff but someone flattened the top and bottom of the snake/staff parts.

Top surfaces are always going to look different on a 3d printer because they are printed in a different way. But you do have some underextrusion. Try printing at about half the current speed. Underextrusion is more obvious on the top layers.

But you don't need to do any of this to print. Just tell the printer you have generic nylon filament and the material station will heat things to the appropriate temperatures. And if the printer complains that you have the wrong material loaded you just hit "ignore" (or something similar).

So in theory there are 3 ways (that I know of) to get the material onto your S5 but one or two of those mehtods doesn't work. 1) Print through DF and it transfers (this does not work yet - future feature as of july 2021) 2) Print over network (you don't even have to print - just discover the printer in Cura through the network and it immediately does the transfer). This is best way. 3) Print over USB (Cura has been putting material info into the UFP file for a while now - but only in the absolute latest firmware (version 6.5) does the S5 read this information and store it. I think it reads ALL the UFP files off the USB as soon as you plug it in and checks for new materials. Hopefully you have your computer with Cura and your printer on the same network so you can do #2

Also what kind of filament is this? Is this a very flexible filament? Like TPU or ninjaflex?

I looked at the model and it looks okay - I mean it has issues but the top of that snake is very flat in the model. Initially I thought maybe you wanted a more round snake but that's what the model shows - flat snake. Flat top surfaces are printed differently but they come out fine. The printer prints with different resolution in X and Y versus in Z. That's why it looks different depending how you rotate the model.

This looks 100% normal. Is this the first time you have ever sliced a model with a flat top surface? This is how cura normally does it (and how other slicers normally do it) - diagonal lines on top surfaces. Maybe we are missing something?

We usually call this "underextrusion". It's complicated because this is the first layer and having the nozzle ever so slightly high or low can, by itself, cause under or over extrusion. It's fine initially because of the initial "purge" that happens just before it starts printing. But you say you have an S5 so I'm going to guess it's not a leveling issue. It sounds like you have more than one S5 so I know you said you swapped the core but please swap the core with one of the working S5's to be sure. Once you've eliminated the core there's not much left: 1) center fan broken - the fan in the door that swings open in the print head - make sure that's spinning once the heads start to heat up (when either core is over 60C). 2) bowden issues - manually slide the filament in and out of the core - use the lever on the feeder to release the filament and slide the filament in and out of the bowdens. If you have the pro bundle on this particular printer it could be anywhere along the multiple bowdens. I'm not sure how to test problems related to the material station. The feeder can push with 10 to 15 pounds (5-7kg) of force so if you feel resistance of only a few ounces (a few 100 grams) then it's fine. 3) Feeder issues - Something may be wrong with the feeder. While the feeder is powered up you can fight it by trying to pull the filament out while it is printing - just below the feeder (again I don't know how to diagose this if you have a material station). If the filament hasn't reached the core yet you should not be able to fight the feeder even with 10 pounds of force (5kg). Most people can't produce that much force when reaching around behind the printer and with the standard finger grip on thin filament.

So possibly the printer uses one type of filament diameter (say 1.75mm) and possibly you chose a 3mm diameter filament? Just a guess.

You probably have to do it before you crash. The folder is here: %APPDATA%\cura\<Cura version>\cura.log (Windows), or usually C:\Users\\<your username>\AppData\Roaming\cura\<Cura version>\cura.log $USER/Library/Application Support/cura/<Cura version>/cura.log (OSX) $USER/.local/share/cura/<Cura version>/cura.log (Ubuntu/Linux)

Maybe your STL file is massive? Sometimes that's the issue. Try a small STL file. More importantly, please post the cura log file here. Do menu item "help" "show configuration folder" and one of the folders that pops up has a cura.log file in it. Post that.

Or design it so that the "ugly" side isn't visible when the part is in use. If you think of this part as a chair with very little back support, print it legs down. Then it can bridge across and connect the legs at the "seat" area, then change the design of the "back" to have a longer diagonal section so nothing needs support there either. Now you don't need any support and the ugliest area (under the seat where it did bridging) is hopefully hidden with normal use of this part.

For 99% of my prints I'm able to design them so that there is at least one orientation where I don't need any support. For most of the rest I use a dual head printer with water dissolvable PVA filament. Before I had dual head printers I would design the support in CAD right into the model so that it was functional, strong, and easy (as possible) to remove.

By the way - that hexagon is infinitely thin so it should print fine - it will have a line at the hexagon but it should print fine as the shells (red lines above) are touching and will melt together.

netfabb free repair service is here (you have to create a free account first): https://service.netfabb.com/login.php Here's another service - drag and drop mesh repair service: https://3d-print.jomatik.de/en/index.php Some people recommend tinkercad - it's free - you import your stl into tinkercad and then export it to a new stl and tinkercad will fix many issues.

There are other tricks. If you want to increase infill density in your model you can put holes through your model - but holes so small that they will hold no air. Cura will put "wall" lines around it and if you have enough of these holes it can be completely solid plastic in that area. Then to make it better, don't have the holes quite reach the outer skin of your part so they aren't visible from the outside of the part. The nice thing about this is you can give your STL to other people and they can use other slicers and it will work with all slicers and with all "normal" settings.

Oh. So maybe post to his github issues.

If you have a dual printer, that feature is very useful but if your supports are the same material you are printing - not so much. I'm guessing it's this one: support horizontal expansion. Set that to zero. If not then maybe post your project file here so we can look at all your settings. Do "file" "save project...". It will include your model in the project file and your printer and your profile and your overrides.