u/MovingTugboat

First three images show the problem, last two show pieces that turned out well.

I have been printing this really awesome chess set. And mostly it has been coming out fine aside for a few issues, but this one is really messing me up. I've been printing the tiles for the board. I am filling the plate, as many tiles I can fit. I managed 26 per plate. They were all identical. All supported the same, arranged the same, oriented the same. 26 black tiles was one print, 26 white tiles for the other. Now, I did the black first. Washed them, took them off their supports, left them to dry. Then I did the white.

Before I washed the white, I went to cure the black tiles, and found several of them were pretty beat up. 7 of 26 were all scratched and rough looking. Alright, that's annoying, but it could be worse.

Then I took the white ones off the plate, scrapped them all into my washing machine, set the wash cycle to go, and when I was pulling them out as they were done there were several issues. Not only did many have hefty layer lines, but many of these were also covered in scratches. 13/26 were all banged up, that's half. Very annoying, a lot of resin wasted, and a lot of confusion on my part.

I can understand the layer lines due to wobbling, there were none on the black tiles as I used extra heavy supports on those. But the scratches are something else entirely. Is that a printing problem? Or is it from the pieces falling from the plate and piling up in the washing machine? It is because the washing machine is moving them around and scraping them agaisnt each other? Is it debris of resin bits swirling around in the wash tank and scratching against the pieces? What is causing this? And how do I fix it?

If it is a washing problem, are there other, more scratch friendly ways to wash these?

In reference to my last post: https://www.reddit.com/r/PrintedWarhammer/s/oTNYKprOiZ

The printer almost failed on this one, the raft was delaminating, and the supports were hanging on by a thread. But it worked, and looks great. Can't wait to get the wings attached!

If you can help me understand even just a few of these that would be a big help, I know it's a lot., thank sin advance.

At this rate I'm never passing this fucking exam.

I am trying Landini's quiz for the first time. I didn't realize he only had a question bank of 55 items. Either way, it is chalk full of stuff I've never even heard of. That's fine, if I need to study more and learn them that makes sense. But THIS question grinded my gears.

Its asking about elimination or reducing. Those are two different things. Eliminating the risk entirely is avoiding. Reducing the probability of it occuring is mitigating.

I picked B, but it says A. Am I wrong here? Is this question not asking about two DIFFERENT risk response strategies? Why should I have picked avoidance when it also mentions mitigation? Or am I just wrong about mitigation is?

I Made a post here a while back about a big ass model I was trying to print and it wasn't working. Here is it, see for yourself:

https://www.reddit.com/r/PrintedWarhammer/s/StUsnUgWdn

I got tons of feedback, and lots of people saying I needed to turn the model 45 and support it myself cause this presupported model wasn't made well enough. And while I did that for the base, I did not do that for the main model because I simply refused. Yes, I was having failures. Turns out a few fep, new resin and manually realigned build plate fixed that right up. (My FEP was pretty stretched out and needed to be changed soon anyway)

So Today it finally printed, properly, as it came presupported. Just as I knew it would. It came out flawlessly, better than expected, though smaller than I thought it would be. You were all wrong, and never should have doubted me, I always find a way.

So in the words of Dr. Dre circa 1999

"So Fuck Y'all,

All Y'all

And if y'all don't like me

Blow me"

The rest of the lyrics after that are not applicable to this situation so I can't go further than that.

I have no limitations.

This was not meant to throw shade at anyone, it's a joke. I just wanted to show off this cool Belakor proxy I printed. I am Very Happy with it. Please Don't ban me...

This will probably be logn so please bare with me. Any and all help is appreciated. So this print is presupported, and I am printing it at double its original size. I have never printed a model this big before. I am wanting to run it as Belakor, and on its base, with its wings, it is roughly the correct size. (At least it should be).

I have already printed the wings at double size. There were no failures, they came out perfectly.

These two however, did not. I came to check on them, and the prints were stuck to the fep. It was only at layer 144, but as for which layer actually failed is uncertain.

I thought it was supported MORE than well enough, but apparently it's not. I haven't printed it at its original size, so I can't say for sure, but this is not a model I ever want to support manually. There are just too many DAMNED protruding details, and the amount of supports on it do not leave me thinking it will be an even remotely enjoyable experience.

What I can say for certain is that layer 144 had not even reached the foot. I figured that if the supports were strong enough to hold at its original size, they would not be weaker when twice as big. Not to mention, they are no bigger than a standard lichee Heavy support. I am not understanding why this failed then, when the supports are standard size, the model is VERY well supported, and my calibration settings are not off, (unless a model this big requires an adjusted exposure time. I originally tried printing a model from the same creator for a demon prince and had to shrink it to 40% of its original size. Most of them came out perfectly, 4 did not, all on one side of the plate. Maybe I have an alignment issue, but I hardly believe I am having the same issue here.

I understand that with models this big, Hollowing needs to be done. I have never printed something this big, I have never hollowed a model before and I don't know what I'm doing. If I hollow it out correctly, and put drainage holes in the feet, do you think it will print successfully? How much should I hollow it? Any tips for Hollowing that I need to know? Do I need supports inside the model?

Is there anything else I should do to ensure the print's success? Any and all help would be appreciated.

(last Picture is the unsupported versions to give you an idea of what I'm working with here)

I'm using Anycubic ABS like Pro 2 Grey resin, and Printing on a Saturn 4, if you need any more information just let me know.

I don't have much experience with unsupported models, especially at this size, and this is a tricky one. Sadly there's no PreSupported version. Trying to print two of these for Hades Breaching drills. I know I wont do it straight up but at an angle, but I'm not sure how steep or if I have to rotate it or anything.

My main question is, should I do drill side down? Or drill side up? If the drill side is up I feel like it would print better, so that I don't need to support each of those teeth, but the bottom side is open, the model is hollow on the inside with a conveyor through it, so I feel like that would make it harder. How would the more experienced printers do it?

Has anyone worked with this model before? How did you do it if so?

Thanks for any and all help!

Just doing some size comparison testing before I try to print some models here. Not sure if I have the scale represented correctly here.

The model in the middle is the height of a guardsman. The model it is being compared to original fits on a 50mm base, and it about the height of a demon prince.

I am using this model, and a few others in the same file pack to run as some large demons for my world eaters. I'm making Angron, Skarbrand, and a Bloodthirster. As well as Belakor, as I want them all, these will be fun to paint and will look really cool on the table.

The second image I have a scale of a guardsman next to both Angron and Skarbrand.

The original model I'm using for this demon fits a 50mm base, and so realistically I should double its scale (right) but that seemed too tall. A 150% scale increase looks a little better (left) but I'm not sure if I'm just under estimating the size difference here. Its also hard cause the gw models have terrain on the bases, but it looks like the guardsman goes up to about the knee. That requirement is kind of being met for both of them here.

Anyone here have any recommendations? Do either of these look right for anyone who owns the models? Should I do something in the middle, maybe 175%?

Thanks for any and all help!