Jump to content

victordriggs

New member
  • Posts

    8
  • Joined

  • Last visited

Personal Information

  • 3D printer
    Other 3D printer

victordriggs's Achievements

0

Reputation

  1. So, I made some adjustments, and then lowered the Z steps as I was watching the brim print (-0.1500) thinking about more squish, and the brim appears to be... uniform and is adhering - which i've achieved before on these 93% scalings, but, the actual object is always a gobbled up mess, not solid at all, usually looks like a bird built it as a nesting experiment. Here are some images of how it's printing right now. Based on doing this... probably 50-100 different times now, I pretty much know this won't succeed. Another spot check and the supports aren't staying in place and the ring itself looks pretty bad so I'll stop the print. EDIT: So you can see in the last two photos after I stopped the print how the infill is spotty, not even up against some of the walls. And the adhesion is quite bad. This is pretty much par for the course for this print scaled to 93%. 94% will be a world of difference for what it's worth. I appreciate the help.
  2. I think I've strayed away from too much squish because all I've ever gotten is curling back up onto the nozzle. And, this has happened with two brands of PETG now, black and transparent. I've swapped out nozzles a number of times. The layer thickness and some unique bed prep has helped adhesion finally. I tried a print with no mods based on what you sent. I got zero bed adhesion. Admittedly, I should probably do more with the bed, I do clean it and I've tried hairspray - seemed to make no difference. What I settled on is this - clear packing tape, stuck to the bed, and then I let it heat up. I peel it off before the printing starts. What i've seen is that is does a good job pulling of any debri left behind, and it leaves a super thin layer of tack-ness (I think?) and that's been how I've been able to finally get some bed adhesion. With your settings, based on my experience, the speed was too fast for me, the temp too low. Going to give it another go with a slower speed higher hot end, and higher bed temp. btw, that fin is cool! and the quality looks great. that's how my prints look in my dreams, lol.
  3. Thanks for the advice and project file. PETG is likely going to be the filament I need for things I have in mind so that's why I spent so much time trying to get it to print. It is gooey, sticky, etc. All the reading and trying I've done seems to tell me that what works for another, might not work for you. The two things I've noticed so far, go slow, and don't flatten it too much, when I do, it curls back onto the nozzle. I say all this with the caveat of "I'm only a month into 3d printing". I'm going to try your project settings and see how it turns out. That short video I showed of the brim is showing vastly different from a good print. Good prints for me are solid, stuck to the plate, uniform. The 93% print is wispy, feathery... almost dusty. But anyhow. I appreciate your input, I'll post back with results.
  4. Here is a video link to see what the quality is like: Video Here
  5. I've gone with that layer height because it's been the only way I can get my PETG to adhere and not stick to the nozzle. It might be the altitude I'm at, or the dry air (~4100 feet, Humidity at ~15%) But I've been all through those settings. I will try and reduce it and see how that works. And if anyone has a PETG profile that works, I'll gladly give it a try because that was a handful in and of itself and this is where I've landed most of the time because it works.
  6. I agree that it looks fine when sliced - I couldn't see any issues there either. But what I will do is so a simple % reduction from 100 down to 93, then start a print. I'll take a picture of the brim lines, which at 93 start to get all wobbly, which also is a sign that the print quality will be very bad, poor adhesion, etc. Anything above 93 and the brim lines are properly aligned with adhesion, etc. I'll also include the project file. I've attached the project file, and I'll start a print and take some pictures. Added the pictures of the brim being printed. Based on that, I know that the rest of the print will be very bad quality. It won't adhere, and it will just come apart. At 94 and up, the brim is tight, the print is sold, adhesion is good. 93percent_ring.3mf
  7. Sorry, I missed your reply. Yes, duh, forgot the stl file. All I'm doing is using the scale functionality to scale down to 93%. Anything lower than that and the print will not succeed. I'm kind of new to this, so it's probably something related to line width or thickness or something that doesn't work out after scaling down. Even the brim printing is really bad. I'm using PETG, and I've tried tinkering with thickness settings but I'll be honest, i'm out of my element on a lot of these settings but even with PLA and just standard quality, the print is still failing. At 94%, it still prints smooth as butter with my PETG settings. Thanks for your help. CC_MK_I_Ring.stl FWIW, i have a stock Ender 5 Pro, no mods.
  8. I'm brand new here, and to avoid creating another post on this topic and at risk of digging up an old thread - I just wanted to add a bit of my challenge here. I'm also struggling with scaling down an stl in Cura, and having it be printable. I will look into the wall thickness and the other points you mention, but something else I see with my situation, is that the brim is also messed up. The lines don't always align properly sometimes are wavy when they shouldn't be. It basically looks like the brim was drawn by hand, if that makes sense. The rest of the print quality is so bad and adhesion is next to none... I sized down from 100% to 91% Anything down to 93% is ok, but beyond that things get bad fast. I guess I'm asking if wall thickness is enough to deal with the issues I'm seeing or if I need some other kind of adjustment. Getting my PETG to print was hard enough without the scaling problems, lol! Thanks for your help, and sorry to be the newb digging up an old post. I'm wondering if I'd get better results importing the STL into something like blender, sizing down there, then re-exporting to STL. I really only want this to be a last resort, however... Thanks for any tips!
×
×
  • Create New...