How to Angle your Resin Print for the Smoothest Surface Possible. Real life use of trigonometry!
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- Опубликовано: 29 сен 2024
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There is a lot of advice out there about how to angle your prints to improve your printing, but honestly most of them are totally wrong. And it really depends on what you are printing. In my case I’m printing tanks with lots of big flat surfaces and I need them to be as smooth as possible. So I discovered how to use trigonometry to calculate the best possible angle to use in order to get the flattest surface on the print.
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I remembered watching this video a while ago and I have posted a link to it on the Galaxy 1 group on facebook today (4/12/23), I tried this method on my Saturn printer and it did really work so hopefully others will find it useful too. I look forward to applying the same to my Galaxy 1 printer, although haven`t yet.
What would you recommend for a printer with an asymmetric pixel size. My printer is 19 micron in the X and 24 micron in the Y.
The 0.04725 Pixel size is for the Anycubic Photon you will find .Where did you find calibration cube for a resin printer ? Keep up the good videos a big help to me .
0.047 also for the Prusa SL1
Brilliant. Very handy! Thanks!
Thank you for the explanation! I'm new and still learning. What resin and settings do you use for your Mono X?
Good Info!
Ok dumb question if you know how to do this stuff. I have the longerware orange 10, how do I figure out my pixel width?
It’s listed under the Specs on their website. Those pixels are huge by modern standards.
LCD Resolution 854*480, 115µm
how do i know my printer pixelwidth ? photon s anycubic
Finally I found the answer in this video what I am looking for. Thank you so much for this informative video!
Very nice! I’m a beginner and I actually understood what you were saying. Learning new tech at age 66 isn’t the easiest thing in the world for me. Can’t wait to play with my settings today! Thanks for the explanation and sharing your knowledge!
As you mentioned this benefits models with flat surfaces. Could I request a video that goes over the anti-aliasing? Pros/cons. Thanks a lot :)
yea, i think this is where anti-aliasing would come in affect -- curious to see how well it works
There's a pretty good one by dennis wang who explains and shows the effects of angle, anti-aliasing and image blur on some test prints that have multiple blocks at different angles to show the effect of each on the print. He also shows the effects on some tanks with some of the different settings. Video is pretty good and well explained and he took care to actually show the effects rather than "well, you can't really see it on camera but the surface looks worse/better."
This formular worked perfectly with my Phrozen Sonic Mighty 4K, but I have just bought the new Elegoo Saturn 3 Ultra, which has rectangular pixels instead of square pixels. How can I calculate the correct angle?
Same process you just have to make sure you are angling the print in the direction of the pixel size you calculated. Basically there are 2 different angles depending on if you angle towards the x or the y.
Brilliant. As a shortcut, it seems if you set your layer height to the same as your pixel size, then you can always use 45deg.
No idea if you'll see this, but how would you go about doing that? I have a M3 Max and I get crazy layer lines at .05 on flat surfaces.
@@johnprescottonline M3 Max has an XY pixel resolution of 0.046 mm, so setting your layer height to 0.046 would get you flat surfaces at 45 degrees.
Good point. If your printing a cube I think that will make all 4 sides pristine. I need to try it though
I discovered this as well when calculating! I feel like that could have made for a shorter video.
So, without doing the calculations and based on this comment thread, if my pixel size is .018 (Mars 4 Ultra) then I need to set my layer height to .018? I don’t know if I can even go that thin for layer height, and even if I could wouldn’t that dramatically increase my print time (more layers, longer print time)? Of course, if you’re going for the highest level of detail, time to print needs to be ignored.
I started out using .05 layer thickness but already considered going down to .03 for my prints. I think these layer heights are getting so thin that we’re reaching a point where you need a magnify glass or microscope to see the layer lines, even if we don’t optimize the angle. Not trying to be lazy choosing my angles; however, I may try some experimentation with some test prints to see if it really matters with my tiny .018 pixels.
here is the formula. WHY ISN'T THIS IN THE DESCRIPTION?
arctan(layer height/pixel width)
EXAMPLE:
anycubic photon mono
arctan(0.050/0.051) in degrees
I print boxes, stuff with straight sides directly on the base without any supports I find that gives me perfect sides on all sides and it prints much faster.
Im having a hard time figuring out what my printers pixel width is, how did you find yours?
With Chitubox, importing your sliced file back into chitubox will reconstruct the print with the layers that the printer will make.
You can get relatively quick feedback showing how each layer stacks up.
That’s great to know…thanks!!!
Great video. I 'm impressed how clear the explanation was. I did some more research on physical dimensions of my printer. I found that single step of Z axis motor moves by 0.000625 mm. So, setting layer to 0.051 mm would require 81.6 steps. Printer would round it and proportions in Z axis would be wrong. So it's better to calculate angle correctly rather than change layer height to mach pixel size.
Interesting point
I wonder why is there no Z antialiasing yet.
This was interesting! Thank you for the insight. I have had this issue on a few prints but now I will try this
Everyone: Do 45 degrees. Me: Ahh, a video that will finally tell me how to really calculate it. Arctan(0.050/0.050) in degrees, now Google tell me what the real answer is......oh, 45 degrees. Guess I was doing it right already. hehe
Doesn't it stand to reason that with 44.433 dgrees, which causes the other angle to be 45+degrees, doing 45 averages out the difference? 1/2 a degree is gonna make that much difference? Use thinner layers......
I know this is an old video but since the problem I have is related to latest developments in screen resolutions I thought I would ask. How do you calculate the ARCTAN of a screen that has a different pixel width on the X axis x Y axis? (a rectangular pixel resolution instead of a square)? For example... The Uniformation GKtwo 8K has a square 29.7 μm pixel resolution. Easy enough to calculate. The same printer with a 12K screen has a rectangular 19 μm on the X axis and 24 μm on the Y axis pixel resolution. How do we calculate the ARCTAN here? Do we just average, 19 + 24/2 - 21.5? Won't that sort of defeat the purpose of trying to get an exact angle?
Awesome question and a major reason I chose the Mars 4 Ultra over the Saturn 3 Ultra!
Finally someone explained how to tilt models that are not miniature figures. Thank you! Will be using this when I print out some building details and vehicles for my model railroad.
interesting video Where can I find the pixel size of my Saturn Elegoo?? Thanks a lot!
this technique seems to not be optimised for high res printers. for example running the formula for a elegoo saturn ( arctan(0.1/0.05)= 63 degrees)
did you try printing at that angle?
Very nice video explaining this in a thorough and easy to grasp way.
Glad it was helpful!
I dont' know if you or anyone else will still see / comment on this...but what about compound angles (specifically to reduce the cross-section face). That is, rotate both in the x and in the y direction. Auto-orientation often seems to try to do this anyways. Would the literal best possible cube be rotated by the formula in the x and y direction?
Fantastic research.
However, it doesn't help me as my printer does not have square pixels.
I suppose its just more simply put you want your layer height to equal your pixel size. Then the formula always works out to the perfect 45 degree angle.
Oh my God thanks for the tl;dr!
I watched the whole thing, but I always wish video creators would do this. It makes this so much more useful as a long-term resource.
I’m new to SLA (Mars 2) and it’s been boggling my mind why all my organic shaped objects (miniatures etc) are coming out awesome but I have not been able to get a decent looking print out of a simple cylinder shaped container. Your video is showing EXACTLY how crappy my results have been. I can’t wait to try your method. Thanks!
Hey. So have you tried the calculations? How did your flat objects fare?
@@bentalls85 yeah it works. 45 degrees. But it’s still not great.
I'm in the same boat
Any and all flats or some what rounded flat surfaces are showing this layer affect.
Being pretty noob I thought it maybe a lil bit cloudy fep, after watching this I've learned more
But I've used 45 degrees in every print
It's just not working out to get rid of lines at 45
Google mars 2 and Saturn pixel widths and they same the same .050 🤷
ELEGOO MARS 2 - They claim pixel size is 0.05 but based on my experiments its actually around 0.051. So use 44.43º instead of 45 for a layer height of 0.05.
I’m new to 3D printing and just getting my AnyCubit Photon mono 4K out of its box but this is exactly what I need as I have a bunch of rectangular, flat surface parts to print fit the Interstellar Endurance model. I’m a bit at a loss, just where do I find the later height and pixel width? I looked in the Photon Workshop 64 software settings and I think it may be what is labeled as X-Y Pixel size um 35, as the Photon mono above it shows your 51. Also, I didn’t get the parts you said you did the changed AFTER the export? Don’t you just take the exported file from usb to your printer?
Hey bud. Just got my own Mono 4k and I was wondering the same thing but I calculated the pixel width to be 0.034mm or 34μm, which is 132mm/3840px. Haven't ran these same tests yet but that's what I got on paper. How'd your prints turn out?
@@astro7473 How did you determine pixel width? I'm trying to solve for my Phrozen Sonic mini 8k.
does anyone know what the pixel size is for the EPAX E10 please
A question I have for this: On a Mars 2 Pro with a pixel width of .050" and a layer height of .050" the angel is 45 degrees as discussed. Intuitively, one would expect at a layer height of .025" that 45 degrees would also work fine, in addition to 22.5 degrees (with exactly half the layer height you would expect to still get even pixels twice as often).
However, the ARCTAN of (.025/.050) is 26.5650512 degrees, not 22.5, which would imply based on your formula that 22.5 is no good.
It's been a long time since calculus classes in college.. what am I missing?
I thin yuo think in a line function, see tve tang functiom
Nice video. What would the Anycubic Photon Mono M5s Pro be. XY Resolution is 16.8X24.8um? I think its arctan(0.02/0.0248) = 38.884. Sound right?
Tried it out today with my Anycubic @0.05mm:
What can I say.. Nice Theory, Absolute bullsh!t in reality. Never had such extreme steps between the layers.
Thought I wanted the tl;dr, stayed for the whole thing because it was so interesting. Great video. Thank you.
Where did you locate the pixel length of ".051" for a spec.? I can't verify that information from Anacubic.
I always have issues printing bigger flat surfaces on my resin printer. I want to use it to print small cases for a small device (calculartor size), but i am still not sure if resin is the answer. Not just because those lines, but because it always get warps. :(
this formula works for square pixel size, what happens when you have rectangular pixel size, like for example the Saturn 3?
I have an Anycubic Photon Mono M5s where according to the formula arctan(0.01 / 0.019) my ideal angle is 27.76° It looks pretty low. Is this correct?
pixel size (XY): 19 x 24 μm (0.019 x 0.024 mm)
layer height (Z axis) = 10 μm (0.01 mm)
sorry didn't get where I find the pixel width of the printer...mine is m3 max..thank you, very interesting video
Since pixels are seldom actually square, I assume I'd need to do this calculation for both axis to get perfect prints on all sides, correct?
HELP! Wondering if anyone has advice, Maybe stupid question because I'm new to this! trying to print flat surfaces with the Anycubic Mono M5s. Pixels are rectangular at 24um x 19um. With the arctan equation, wondering if I should use 24um or 19um or the average of the two (which would be 21.5um)
No… you’re not going to cover what is the perfect angle to print your resin 3D prints.
You’re going to cover what the perfect angle is to print your 3D resin prints.
ENGLISH.
I tried this today with my SM4K : IT WORKS !!! Thanks for the explanations. The formula can even be improved for a smoother finish. After watching this very instructive video about the printing angles on 3D printers, I noticed that these parameters are all calculated for prints parallel to the pixel rows.
many of my friends and I noticed that rotating the parts on the build plate gives smoother results.
I took my old calculator (Yes... the 35 years old one I had at school) and after rotating the part by 45° on Z axis, the new formula is :
H = layer height
W= pixel width
A= Angle
A= Arctan (H/Sqr(2W²))
OH. Good call. I hadn’t thought of that. Testing tomorrow.
How was the test?
Following.
It wasn’t as good as I had hoped. And then I have had my printers running non stop on others things and haven’t gotten back to it.
45° for SM4K?
XY 51 MICRON and Z 10 MICRON does the Z micron not account for anything here just out of curiosity as this is really interesting and trying to work mine out for my anycubics m5s 12k amd saturn 2 8k
How calculate the pixelsize of a Anycubic M3 premium 8k?
So, wait, is pixel width the xy resolution? So, with say a epax e10, which has a xy resolution o f0.05, if I'm printing at 0.05 mm, what is a 1 in degrees?, 360 degrees so perfect vertical??
Nice. Because the Elegoo Saturn has layer heights and pixel width of both 50 micron, then the angle actually is 45 Degrees! It doesn't get more perfect than that!
Photon-S looks like a 47um pixel width, in case anyone is curious :)
how did you get that number? could you please explain? thanks in advance
@@aykutakalin7886 my dad used my account to comment for some reason, I don't know anything about 3d printers other than what he rants about people doing wrong
Hi, nice video!!! Could you tell me the pixel width for elegoo mars3 pro and Saturn, thanks
so i changed my layer height to 0.0285mm down from 0.030 to match my printers pixel size, elegoo saturn 2, so my angles are 45 degrees now. think i should change the exposure time?
So if printing a action figure... Print angle doesn't matter? Only for flat surfaces?
Coool.. GOing to try it right now :)
Thanks for the guide
How do you resolve this on, essentially a spherical object? Printed a grapefruit sized object and these striations show up pretty bad, but fortunately can be sanded down over 95% of the printed object. There’s no angling a rounded/curved object that’s basically equal on all sides.
I like this theory and my compliments for your explanation. However, I think in practise this will only matter at slight tilts w.r.t. horizontal. And when applying this theory, you will need to calculate the optimal angle very accuratly or you will get a small number of very ugly (rather large steps) lines. I think it is better to make a large than a tiny angular error here. At larger tilt angles, (as far as my experience goes) flat surfaces will usually have no issues, so no reason to do the math there.
How would I round up a decamal point t of 0.5 as my saturn 2 is 28.5 micron would I round it up to 28 or 29 micron? As the calculator doesn't seem to like these decamal points?
Brilliant video! Thank you so much! But i a little bit confused about the axle. You applied the angle to different axles Y and X. So what axle I have to use?
hi, do you think that this model positioning will work and print fine?
Or how would you place this object to avoid failurs?
drive.google.com/file/d/104Z6Bw0C3-GILCXklRpnXFM8-s1mhFaj/view?usp=sharing
Thanks.
So as the issue are aliasing artifacts, the solution should be to have antialiasing. Display greyscale.
Some of the slicers like ChituBox offer AA. Not sure if Lychee has it yet.
Lychee does have AA. They recently added AA V2 which is greatly improved.
I've mono x6k and its 5,760 x 3,600 px 34 μm so my pixelwidth is 0.034. Am I right? But it says 0 degrees?
ELEGOO MARS 2 - They claim pixel size is 0.05 but based on my experiments its actually around 0.051. So use 44.43º instead of 45 for a layer height of 0.05.
really? that's maybe why 50 micron layer height, 50 micron pixel with, 45° angle still produces artifacts. it's 51 microns!! going to try that
Great video and excellent description. You could be a tutor with your skills!
ps i know this vid is old but that chart was posted on the Photon S facebook group like 3/4 years ago, i had is saved at one point (it was made for the photon S, it has a .047 pixel width)
photon s at .020 Hight angle is 23.05 degrees.
Thanks for the video, but how can I see the pixel width in anycubic photon workshop
Shouldnt antialias prevent this? Theoretically?
Thank you interesting stuff! Does this matter with a 8k printer, since the pixels are much finer anyways?
Maybe you could activate subtitles for other language people please
You left the same link twice. Was that intentional?
Want more details on what exactly is happening? Check this out: ruclips.net/video/lC4Q6sV0TVY/видео.html
We now know who made the original charts in the video. Check out his video about it here: ruclips.net/video/lC4Q6sV0TVY/видео.html
Wow, very good -posible- explanation of whats happening to.me , i got a photon mono x , i think that making hollog with infill could produce yhis lines, but i need to test it, im thinking about all the yuotubers videos i saw before i made my purchase ,No One even mentiin this "isiues", or layer lines, they allways said "quality,well its a resin printer, its print perfect out of the box"
Well we known now the true
hey bro, first of all, great tip!
So, i am printing figures medium and large sizes, but when i add suport the edges close to the supports got round for some reason, any tip to help me out?
Like, a figure sliced on the legs, i put some angles on the leg and the cut lose its shape, leaviing a gap when i put ir all together. Thank you!
so, my guess is, set layer height to the integer multification of the pixel width (my english is trash), and tilt them 45 degrees, there should be no or less noticable artifacts?
So I'm super new to resin printing and was making a bust of Kratos from God of War. He came out great but the stand had some odd artifacts that look similar to the stepping but not the same. Is there any way I can connect with you to send a picture of how I set it in the slicer and how it printed and get some advice on it?
Dont touch the Resin. Look at your hands! OMG.
There were all cured before filming.
This is awesome but im not sure how to calclate for my saturn 3 ultra with the non square pixels
(9:40) - Because you are printing a Cube (or an object that has two flat surfaces at right angles to each other) and using ArcTan to get the 'perfect' angle, the other side (perpendicular) will always be off, UNLESS you set your Layer Height and Pixel Width Identical so you get a 45 deg angle.
What if your two flat surfaces that connect along one edge are not perpendicular? You are going to get 2 different angles, only ONE of which is the perfect angle...
Also, you have printed your cube along one edge of the cube. Does this also apply if you printed off of one of the corners? How does that effect the 3 sides that are now printing in a non-flat/perpendicular orientation to the base plate/vat?
having watched ilm printing razor crest for mandalorian it looks like they angle it in 2 axes to the magic angle
I have a anycubic photon mono 4k how do i find out what my pixel size is ?
My issue comes about 1200ish layers in
How do I find out about how much pixel is there for my printer?
Where are you getting the pixel width info? I'm not finding it anywhere for any printer.
What´s about Anti Aliasing ? Thats my solution against layers
Very useful. I'm not sure why, but I was somehow picturing the granular structure of resin prints to be different from fdm. This was a great solution because it quantifies it. You got a new subscriber!
What is the difference in the wrong angle and having to subtract 90 etc? When does that happen opposed to just typing in your correct angle? Awesome video btw!
Where do you find the pixel size for a Halot One?
This info is pure gold
This is helpful. But how do you know what the pixelwidth of your printer is?
All the manufacturers will list it on their website as pixelwidth, or x/y resolution in either microns or fractions of a millimeter.
Have you EVER try the AA option ???
Great explanations, your prints looks great.
My prints with vertical flat walls 90° to FEP, like a rectangle for instance, have ugly lines-marks-stripes a cross the model.
I'm using an anycubic photon mono and the model is at 45°. Faces at 45° look great
Any advice, suggestion or comment is will be very appreciated.
so can someone sum up the vid in one sentence, which angles should we sue
the flat foreward faces of a gun
For me what worked the best for the past years from working with DLP printers is it depends a lot on the model. I used to do figurines at around 30-35 degrees and cube style parts at around 35-40 degrees on one axis x/y and around 15 on the other axis if I recall correctly
This was for the Envisiontec Perfactory 4 printers btw
FYI: For the Photon Mono X the pixel width is 0.05, which gives you an optimal angle of 45° with the default layer height of 0.05: arctan(0.050/0.05) in degrees = 45
Thanks! Hey, how do you know what the pixel width is?
Most of the time it will be listed on the manufactures website either in microns, um, or mm
Hey there! So I'm new to SLA printing and I have a ton of FDM experience, which I know does not really carry over, but I'm wondering if I'm making a mold and I have a magnetic flex build plate with 100% infill, could I just print my part directly on the plate rather than rotating it? My printer is on the way, otherwise I'd just test it lol
How'd you go with directly printing on the flex plate? I do this all the time with my Anycubic M3 Max but that has a laser engraved solid plate. A flex plate would definitely be easier if the parts adhere enough.
You are genious! Thank you!
Hello, a question, the elegoo saturn 2 8 k printer has a resolution of 7680 x 4320 pixels results in a pixel size of 28.5 µm for its area. What data should I put in pixel width? thank you
0.0285 would be the optimum height for a 45° angle. But not all printers can do that.
Hello, with the mars 2 0.05 and 45 degree I keep having lines like the ones at 3:48. Any thoughts on it?
I have the same printer and have the same results that you do. I suspect the pixel width of the Mars 2 screen is not 0.050
I believe its .047
@@MichaelPettingill Really? I'll include that in my tests.
This is some awesome info, thanks!
I have weird, curvy lines, not consistent ones. What's causing that?
Like these? How to Get Rid of Weird Lines or Waves in your Anycubic Photon Mono-X Prints | Just Reboot It
ruclips.net/video/SQnn6-y-vAQ/видео.html