AndersK

I think your problem is infill speed. I have reduced it to 40mm/s otherwise it will create blobs like yours.

Sorry, should have mentioned that I haven't tried them myself, yet...

Maybe insert threads could be a better option. You heat them and press them in. Guess you haven't seen a tap like this neither. 😉 Designed for difficult materials to reduce friction while tapping .

Send them a request, they are the manufacturer so they might be spooling soon.

https://addnorth.com/en/shop/?material_name=PETG&diameter=2.85&availability=1 I have used about 15 rolls from them last year, great quality. Link should show petg in 2,85mm that are in stock.

My UM3 had been "dead" for months with printing from SD card was the only option. Same as you described, nothing could get it back on line again. Then a colleague started up Cura 3.6 and he got connected, printed and after that rest of us with latest Cura could connect too. I have reported this and sent log files but not seen a fix yet.

Are you using straight taps in blind holes? Try spiral taps instead then. They are designed to pull the chips upwards instead of pushing like the straight taps.

As you say lifespan of a filter greatly depend on exposure and media. Low exposure to gas and particles and proper maintenance and they will last for years. Medical is another thing, short use only then sterilise and replace filter media if not disposable.

Sounds exactly like my problem that began after installing a new printcore

Scans might be available from the hospital you have contact with.

For anyone struggling with bed adhesion I would recommend using PEI sheets. Since I got my BuildTak flexplate system with pei there has been not the slightest issue. Printed pla, petg, tpu, carbon fibre filled nylon and petg it all works without anything extra on the plate. Pet is also fairly easy to get loose when finished.

Thanks I'll have a look at that. I was hoping the community would have some insight since I put more trust in the people here than on other social media. Have my eyes on a Modix 120 with a build volume of 1200x650x650

I assume you solved the editing, else I have the latest Inventor release so just shout if you need help. Have also possibility to run basic CFD. Regarding the comment on effectiveness, if you can hold it in place by inhaling it should be good enough. That's how we test scuba masks and other. The masks mentioned are designed to keep really nasty stuff out that can kill you in just one breath. I have many hours training in said masks and failing the inhale test or not keeping your filter dry would result in a very unpleasant experience when your in a building filled with military grade tear gas. 🤮

Will try that, just have to get some builds printed first... Manual levelling didnt help neither 🤬

In fact you can have them floating, I have tried that in the past. You need to disable auto drop, then Cura will build support between them

Installed a new printcore (AA 0,4) in slot 2 and now it look like its trying to print first layer 1mm or more below the build plate. It actually pushes the core soo hard it cant extrude any filament. Have done the X-Y calibration and active levelling before first print. Done "forced " active levelling twice after but still it will dig down. G code looks alright, first layer at Z 0,27 Any ideas? Am I doing something wrong? Have just done manual levelling but have another print from extruder 1 that has to go first so have to wait 4h before I can try again.

Mine often runs with just one material loaded. Sometimes cura see it as dual extrusion when it isn't.

Would you be interested in non ultimaker equipment in this network? Our organisation have some very well equipped labs with additive manufacturing technology and there's an ongoing discussion how we might be able to help

I'm looking for a new printer for large prints, unfortunately no Ultimaker is big enough. Must have a bed of at least 600x600 mm. FDM printer Dual extruders Fully enclosed Heated bed and possibly heated enclosure Preferably possible to use Cura, at least not only proprietary manufacturer software. Must accept materials from most manufacturers, no proprietary material restrictions. Any suggestions? I have a few on my list but want to hear what the community opinions are. If moderators feel I'm swearing in the church discussing other brands, feel free to remove this post.

HIPS might be a better choice over PVA in this case.

Might be a long shot but I have seen Cura sometimes think its a dual extrusion print, even if it isnt, and if Prime tower is enabled it will shrink the print area.

Add North has conductive 2,85 wire, Koltron G1 (graphene). Not soft as the ninjatek though, and yes, pricy as well https://addnorth.com/en/shop/product/ANKG111BLA

Ironing will solve that for you. The default flow for ironing is 10% which for some materials is too much, also depending on what brand you use. Start with about 4%. Increase if you still see a pattern and reduce if you get blobs.

I don't know those machines but if it started with a nozzle change I would change back to see if it changes goes back to normal.

It very much depend on the application. CF Nylon has better impact resistance which sometimes is more important than tensile strength. It's not as easy as just comparing data sheets. I have a very good example from a lever I designed. It had to endure 100 Nm bending and we chose a 30% GF PA that from both specs and FEA looked great. It held static load well but very easy to snap. Changed to another PA with less strength but higher flexibility and we just couldn't break it.