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jeex

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  • Country
    NL
  • Industry
    Education
    (Product) design
    Engineering
    R&D / Exploration
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  1. For the walls with infill I set the material flow back to 100%. Results are really fine. However it does demand patience as printing PETG is way slower than printing PLA. The candyfloss is not really getting in the way, but sometimes it forms a blob of material that settles down on inconvenient places. I'll share the end results here. By the way: what I'm printing now is a part for the dashboard in my Volvo C70 where I'm replacing the completely useless up-and-down GPS with a box for my own TomTom or smartphone.
  2. The surface with Fine settings is really beautiful. The walls with infill are a mess on the inside.
  3. Fun thing is: I work with international students, so I write and speak English all day. And then here, I forget 😱.
  4. Apologies, it's in English now.
  5. I'm printing PETG now, brand is Kexcelled. Printing is OK at 250 degrees Celsius. Question however: during printing i see this thin canyfloss threads. In the first layer this is worse than in the rest. I raised and lowered print temp to 260 and 240. Same results. I reduced flow to 90%, small improvement. Any suggestions? Thanks.
  6. Normally we make PETG filament in our own lab at NHL Stenden Uni in Emmen. We get shreds from local industries. On account of corona and reduced lab capacity, that's not possible. I'll buy some samples here and there and see what I like most and share results here. What I'm printing now is 4 year old PETG from Hestay.nl. It comes out nice enough.
  7. PETG is stronger and more durable and doesn't get brittle after a while. And PETG is food-safe. I don't want to print ABS because of the smell and it's not food-safe. PETG is just as easy to print as PLA. However it is confusing, all the names en materials: CPE CPE+ PETG PC-PETG Still doing the research on them. Every brand seems to use different names.
  8. Thanks for all the help. I'm coaching a few students in my minor program Creative Programming for Non-IT Students and they are all surprised by the help they get when asking questions online. Share the love 😉 Printing old transparent PETG with CPE settings. The printhead leaves small crums here and there on a surface, but the result is fine. Thanks, you got me going again.
  9. Are there special settings for CPE/CO/PETG or are they like PLA?
  10. Hi All, I've been out for a while, now started printing again with my UM2+. Lots changed on the market of filament. New suppliers, new materials. Anyway, I'm looking for good PETG on the Dutch market. Preferably a web shop of course. Can anyone recommend please? Thanks.
  11. Did you add a new printer to Cura – the UM2+ printer – and removed the UM2 printer? Maybe then the upgrade will fit with the printer you actually have. It's just a thought, i just upgraded and updated myself, but cannot test yet.
  12. De feeder draait de verkeerde kant op na de upgrade naar 2+ Stekkertje in moederbord zit goed (kan ook maar op een manier zitten) in E1. Help!
  13. Correction: i use an iRobert feeder: https://www.youmagine.com/designs/alternative-um2-feeder-version-two. Just fixed the flaw by putting in 2 cm of the bowden tube at the bottom. The hole was large enough by now to squeeze it in. The extruder-top-feeder is in my opinion also makeable with the standard UM2 feeder wheel and stepper motor. I think the wheel can be mounted directly to the end of the long square pin in a printable feeder construction. On the rear corner of the UM2 case the stepper motor has a bevel gear driving a similar bevel gear where the square pin slides through. So
  14. Thanks for the reply @ultiarjan. In fact, i use one of your feeder designs. Only flaw in it was, after many hundred meters of filament, that the feeder wore out at the bottom, where the filament goes in. I've printed a lot more with a small piece of metal filling the gap. No problems there. I saw you improved that in your latest design. The Bond-tech thing does not solve the real problem, it only reduces the effects. It addresses the problem at the wrong place. The Zero-gravity design is a bit like what i had in mind: a direct feed, but without the weight on the extruder. Nice and also
  15. Have been printing a lot of production with UM2 the last two years. Same products over and over again. Thanks to the removable extruder from 3dSolex. Only one issue frustrates production regularly: the feeder. It grinds the filament now and then. Found, printed and tested many alternative feeders. Some are nifty and work well, but do not solve the problems. Also consider using a different wheel https://ultimaker.com/en/community/33367-knurled-feeder-wheel-versus-hubbed-mk8-feeder-wheel-for-filament-drive . Any results with that yet? But i found out that i'm trying to solve the problem at th
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