SefPinneyStudio

Old Post. Weighing in for Community benefit. From my experience / understanding: 0.8mm Layer likely too Tall for the Nozzle Dia of 1mm. (Narrow success range) Also, I don't think Cura does great out of the box calculations for > .8mm nozzles... I'm guessing b/c UM's printers don't ship with 1mm or larger.(Lack of feedback, machine designed for < .8mm) I'm assuming you're using a 1mm nozzle. If you ARE, the Line width should be .9 or .95mm (fractionally less, to force the extrusion ovals into close contact with adjacent lines.) My reading tells me that for a 1mm Nozzle (not UM.) you could do 0.5mm Layer height, or maybe .6 but .7 or .8 would require real tweaking. Slowing speed down is always important, because "you're already" pushing lots more plastic at 1mm. Also, 215° might be too hot, If 190-200 works for .8mm, thats a big jump to 210 for PLA. Start your Cube printing at the low end of the Temp range and increase on-the-fly until there's no underextrusion to find your spot for Feeds and Speeds. Do others experiences comport with these ideas on larger nozzles?

Cura 4.4.1 I feel I'm missing some setting, and have read Cura may be limited somehow with single wall shells? Therefore needing Spiralize? I thought designing an .STL to Exact Nozzle thickness was recommended. However I have two possibly related problems. Problem #1: Layer Height is disabled with .8mm UM nozzle and UM CPE+. There is no ability to change the slider, but neither does it indicate WHAT the layer height will be. It CAN be changed in Custom... but I'm trying to print only with UM recommended settings. See Greyed Out. I have tried deleting Configuration Folder. Problem #2: 0.80mm for the Line Width causes the slicer to introduce major holes. 0.78 is less bad 0.75 Slices well. The part has EXACTLY .8mm walls. See Black 0.80 dims from Rhino. This corresponds with .05 less Line Width than Nozzle Diam: 0.80 ---> .75 Line Width. But shouldn't Cura correctly slice a .8mm wall, with Recommended defaults? This is such a PITA moving target! I am willing to design / optimize a Solidworks part for the Nozzle width... but not if even THAT doesn't slice as Logically expected. I'm worried this a feature and not a bug. Can the community help identify why .8mm walls won't slice with .8mm nozzle? Pulling my hair out.

@DrCeeVee I've ran an Ultimaker 3+ for 3 years now, printing usually once a day (1-6hr prints) , and can't remember a single instance of a Software crash (on the machine,) especially mid-print. Cura itself DOES crash, but that's irrelevant to the sent Gcode. There have been no memorable cases where I've needed to power cycle EXCEPT during setup: Sometimes the Prime Blob goes crazy (3x volume) and then gets dragged over to print (haven't seen that too much this year. If I mess with the print cores, or leapfrog prompts, it will give a Print core temp error, and I'll have to Off/On. But these are both Pre-Print, or Early print. All issues I have typically point back to my operator error, such as customizing Cura settings, w/out calibrating/testing the speed ups, changes etc. Wet filament, Dirty Feeders, Lubrication, Print heads clogged... the long-term, weekly and monthly Maintenance that IS critical to quality operation. This is all very well covered on UM Support on the web, but are all totally unnecessary for a brand new machine. My UM3+ machine's test print and ALL my prints for the first 9 months at least were PERFECT, from a machine hardware perspective. Using UM Filament. Also, I hate the rotary dial, and 4x20 LCD... it sucks as a GUI... So S3/S5 are going the right direction. Also: @DrCeeVee) There is SO much competition right now in FFF printers, of all sizes, that it's easy to pluck a Cheap-ass, New, open frame printer with a fraction of the features, and worry that it seems flawless out of the box... but we won't sing the same tune 2 years down the road, when we need deep UM support, and a community of Masterful tinkerers to point the way. Granted, they SHOULD whisk those damn buggy printers back to the factory and bend over backwards to fix your issues ASAP. My $6K and your $10k is too much to spend on poorly QC'd or Calibrated machine... and I point to my own 9 mo. of perfect prints as a reasonable expectation at this price point. In this environment of bleeding edge competition, you could spend 50% less for a similar spec'd printer (likely open-frame) , but you likely won't be getting the history and community of sound engineering. Do your research on Cel-Robox, Raise3D, BCN3D... and I personally would still come back to Ultimaker for my first production printer.

@panhalt : I have the UM3+ and the Solex Hardcore set. I regularly use the Solex 0.8 and 0.6. Both of them require me to OVERRIDE the nozzle just before print time, as you say. This is the scary warning "If you override, You can break your damn printer." more or less. I wish it wasn't this way. But in my understanding, Ultimaker has an Open Filament system, (Using a Custom Material Profile will not require an Override. But, they DO NOT have an open "Print core" system. So, Using anything OTHER than the .25, .4. .8 Print Cores (Stock) will always require the scary warning, an an Override to start the job. Considering that Automatic Leveling can (and should) be set to "Always" , I don't see WHY a non-stock Nozzle is such a threat. The G-code is not going to crash the Z-height of the .8 Solex Nozzle, if it is "auto-leveled." Anyone know what best practices are for reducing Overrides?

I figured it out. But it’s none of the solutions listed above. The only way to enable maximum build area is to turn off Travel > Avoid printed parts. A search for maximum build volume was my turned this up. (+ no Adhesion or 2nd extruded, obviously) even if the second extruder is disabled, Cura still attempts to avoid it crossing over the single extruder area.

Having the same Issue. I realize this is an old thread. I have a Part that's 211.9 mm Round and Cura's ACTUAL allowable area seems to be LESS than 215. This is very frustrating. One would think Cura would compare the bounding box of the object the shaded area.... but that's not all of it. 2nd Extruder is OFF. Adhesion is Off. However, it is NOT helping, nor is Cura giving guidance as to why it won't fit. Update: Here's the screenshot that would have driven you all mad. Both the OP and my own part visually FIT within the shaded area, using the Parts Z shadow and numerically, it has at least 1mm on all sides. Turns out the setting that fixes this SNAFU doesn't have any shading for it... thus no feedback. Took way too long to find the "Maximum build volume" Manual page in Google searches, when it could have just been indicated some way in the GUI. If Combing is on: Turn OFF: Travel > Avoid printed parts. Anyway that's the answer. I'm not sure when combing > All became a thing... but I'm not convinced it's helping more than hurting. Will turn it off to avoid dragging dripping extruders over clean walls.

Can’t text to your number, and the email is invalid coming from an iPad.... Sef here, might be interested if still available. Studio@sefpinney.com if it is.