Please help torubleshoot benchy defects - new to FDM
reddit.com/gallery/10tt565Posted Feb 4, 2023, 10:23 PM UTC
08
reddit.com
Hi folks, new to FDM and I'm not sure what these types of defects are called so not sure what to google to fix them.
Overall quality of my first benchy seems pretty solid for FDM. Theres some really minor stringing and bridging issues I need to fix but also some other glitches that I don't know what they are or how to troubleshoot. I'd really appreciate some help to identify and/or resolve these issues in the photos. (Some description in captions)
This is on a neptune 3 plus, with default settings, using cura, sunlu PLA at 200deg nozzle 60 bed, 60mm/s
1
I think one is that your z height is way too close to the bed. There is text at the bottom of the benchy that you should be able to read.
You might try slowing it down a little. I know Neptune profiles have 60mm/s for the new 3’s, but even in the pro, 45mm/s to 50mm/s looks much nicer.
I also wonder if your z lead screw is a little tight, that why you’re getting those layer lines a little messy.
The artifact is the seam and it probably never going to perfectly align. Looking at my benchys with that same positioning, it doesn’t.
1
Thanks for your feedback I appreciate it, i'll try a lower speed and check my Z axis, i hadnt noticed the layer issues.
Are you saying there's meant to be a seam on the model? Does it start each layer in the same place or something? No way to fix that?
1
There will always be a seam, yes. That’s the nature of the tech. But look at injection moulding? Especially bottles? They all have one.
There are techniques to hiding it that work better than others.
Because it’s a pretty large topic, you’ll have to do a little googling, YouTubing, and experimenting. Since cura 4.9, there has been a seam preview feature so you can get more control over positioning it (Elegoo Cura is 4.8). Superslicer has some really good controls for location.
There is a feature called “random seam” which will make it so that makes not just one line. But personally I find it makes the model look worse than just hiding the seam in back corner or something.
1
Thanks, i didn't know that. I guess it depends what you're printing as to where you want the seam and what post processing you can do, I'll do some more research.
I find it funny how you can watch numerous videos on how to use benchys to calibrate and they miss seemingly obvious things like this, and often assume a base level of knowledge that just isnt there for a total newbie.
1
As you work through your learning curve I leave you with this thought: 3D printing is community driven. All the really interesting things around the technology is done on public boards like this one.
It’s like the computer clubs of the 70’s where people came together to talk, exchange parts, for their home brew computers: the way Apple got started.
There is some really great information out there, and there are great teachers like Michael from teaching tech.
But, a lot of it is experimentation. Unfortunately, that means that a lot the learning comes very scattered and unstructured.
The very thing that makes 3D printing so interesting (community driven) is what makes it so frustrating (lack of formal structures.)
1
Hello u/Scribbinge,
As a reminder, most common print quality issues can be found in the Simplify3D picture guide. Make sure you select the most appropriate flair for your post.
Please remember to include the following details to help troubleshoot your problem.
^Additional ^settings ^or ^relevant ^information ^is ^always ^encouraged.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.