How to Angle your Resin Print for the Smoothest Surface Possible. Real life use of trigonometry!

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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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These are some of the printers mentioned in the video.
Anycubic Photon Mono: geni.us/AnycubicPhotonMono
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Elegoo Mars Mono: geni.us/ElegooMarsMono
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Anycubic Photon Mono X: geni.us/AnycubicPhotonMonoX
Elegoo Saturn: geni.us/ElegooSaturn
Phrozen Sonic Mighty: geni.us/PhrozenSonicMighty
Prhozen Mighty Bundle: geni.us/PhrozenMightyBundle
Wash and Cure Stations: geni.us/ElegooWashAndCure and geni.us/AnycubicWashAndCure
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16 дек 2020

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Комментарии : 358

@Cbtrainnut 10 месяцев назад

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!

@mik310s 6 месяцев назад

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.

@avengethisman 2 года назад

Just started resin printing and still learning how it all works. After alot of research this video explains it very clearly and im not a smart person by any means but this just made sense. Im going to try it out right now on my next print thanks.

@pacificcoastminiatures Год назад

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.

@hillfortherstudios2757 3 года назад

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!

@doktormalifiko5488 2 года назад

Thought I wanted the tl;dr, stayed for the whole thing because it was so interesting. Great video. Thank you.

@evanlane1690 3 года назад

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.

@agepbiz 3 года назад

This was interesting! Thank you for the insight. I have had this issue on a few prints but now I will try this

@martinsivertsen7485 3 года назад

Very nice video explaining this in a thorough and easy to grasp way.

@TrueEliteGeek 3 года назад

Glad it was helpful!

@Scaleaton 3 года назад

Finally I found the answer in this video what I am looking for. Thank you so much for this informative video!

@luisdoria5689 2 года назад

This is perfect, thank you! It completely answered all my questions about angles!

@AlexSiu 3 года назад

This is gold! have to try this this weekend

@pogle63 7 месяцев назад

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.

@joeandrews1499 Год назад

A great hint when printing good-looking flat surfaces. Thanks!

@DIYGarage_SoCal 3 года назад

Super helpful and solves my pixelation problem. Thank you!!

@TheSlurton 11 месяцев назад

Thanks so very much you solved my resin warping problem. Had difficulty figuring out what you meant by Pixel Width but then listened to what you where saying a couple of times. I have an ANYCUBIC PHOTON M3 which has a 23 micron pixel size. So i set my print hight to .23 and rotated my model to 45 degrees and it came out perfect. Thanks again.

@45calshooter 3 года назад

FANTASTIC VIDEO.... I'm new to resin printing (monoX) and wondered why people say "print at 30° or 15°". The equation was perfect (I understand that). The rest of the video is perfect 👌 explanation. I have subscribed and will be watching. Thanks for the time and effort you put into this video. Siskel and Ebert give it 👍👍

@ozcanison 2 года назад

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.

@johnprescottonline Год назад

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.

@mallarky129 Год назад

@@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.

@billclark5943 Год назад

Good point. If your printing a cube I think that will make all 4 sides pristine. I need to try it though

@chiefbeats0817 Год назад

I discovered this as well when calculating! I feel like that could have made for a shorter video.

@forrestegan 6 месяцев назад

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.

@phillipnewman9174 2 года назад

Awesome! Thanks for sharing! Would never of thought of trigonometry to solve such a problem.

@dstark384 3 месяца назад

Just came across this because I was having problems with sagging surfaces. I was trying to print things at a square to the bed, I wasn't thinking in the context of layering to make it smooth. Thanks!

@ChrisSchryer81 3 месяца назад

Thanks for the video. I've been struggling with those artifacts for a while now.

@amcreaken Год назад

Really appreciate the TLDR type of setup of your video.

@mike0rr 3 года назад

Very interesting. I love seeing when the rubber meets the road when it comes to math and real life.

@abimanyuwddn 2 года назад

SUPERBB. Thank you so muchh. I own photon mono. I know about 44.43 degree thing. I always did that. What I DIDN'T know is that you can change the layer height to 51 microns! I always thought that the printer can't do that (0.001 mm Z axis step). This is mind blowing. The option is always there but I didn't realise that until I saw this video. Now I can make the perfect cube like you did! thank youu

@modelracecar 3 года назад

Super useful, made me realise there's logic to this hobby too.

@Tsunamiash80 2 года назад

Finally an answer that makes sense! Thank you!

@hauleroid Год назад

That was awesome and answered all my questions. Thanks a lot!

@MrElwood1985 3 года назад

Bro i'm not even kidding, this is the most usefull video i've seen on YT!! Probably because i'm into SLA printing but that doesn't matter hahaha

@maxmoors 2 года назад

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

@Patmouchon 3 года назад

Thank you for this great video, very easy to understand!

@LeadNavSystemsLLC Год назад

Randomly came across this as we were trying to figure this out yesterday. Great video. We are running a Formlabs Fuse 1 SLS with Nylon 12 Glass Fill and we were "eyeballing" the correct angles in the chamber and playing with the "show" surface quality.You get big steps in any slightly angled X/Y as this machine in powder is a .110mm layer and the laser is at 200micron...so if my brain can still do math (questionable) we are looking at between 28-29 degrees... Appreciate the video.

@ekaterinaveil8059 3 года назад

Priceless information ❤️❤️❤️thank you so much!!!!!

@shirenai Год назад

This video is a must see. thank you!

@breandanh4912 2 года назад

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.

@forrestegan 6 месяцев назад

That’s great to know…thanks!!!

@sideburn 3 года назад

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!

@bentalls85 2 года назад

Hey. So have you tried the calculations? How did your flat objects fare?

@sideburn 2 года назад

@@bentalls85 yeah it works. 45 degrees. But it’s still not great.

@217RockStar217 2 года назад

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 🤷

@Pepino2012 2 года назад

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.

@Wittmason 3 года назад

Seriously great video. Thanks so much for sharing this info.

@GeorgMierau Год назад

Great video indeed! I linked it countless times as a response to this question on Reddit :)

@andrzejwilkoszewski7850 3 года назад

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.

@alexp7274 Год назад

Interesting point

@logcabingaming3710 9 месяцев назад

Incredible! Some suggested this video when I was searching to why my straight edge prints were warping and sagging! Guess what….I’m also printing tanks 😂

@cosmic1969 2 года назад

thank you, very great explanation if my curent problem

@divencia 3 года назад

This info is pure gold

@ingofm007 2 года назад

Great video, very informative, have subscribed to learn more tips

@Acheiropoietos 3 года назад

I quite like the striped patina of 3D prints - it catches the light in interesting ways. I always use epoxy filler and sanding if I need a proper flat surface.

@bretthamelin8974 3 года назад

Thanks. Gonna give this a try.

@sebastienfournier3672 Год назад

Verry informative video!

@realspacemodels 3 года назад

Brilliant. Very handy! Thanks!

@EugenAnanin 3 года назад

Thank you for this great video!

@BillyAltDel 3 года назад

Very informative. Thanks!

@KenAugustino 3 года назад

Super useful! Cheers!

@renaudpouge6843 3 года назад

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))

@TrueEliteGeek 3 года назад

OH. Good call. I hadn’t thought of that. Testing tomorrow.

@AndreiUzun 3 года назад

How was the test?

@vikingcat2640 3 года назад

Following.

@TrueEliteGeek 3 года назад

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.

@user-xt3jn3no8t 3 года назад

45° for SM4K?

@Red-zv2xt Год назад

thank you so much for this! I'm trying to print large swords and couldn't find any video that detailed angling square like objects with two flat sides!

@pseudo_goose 23 дня назад

That arctan formula would also work in the opposite direction - find the optimal layer height for a given inclination angle and pixel width. For example, you could print the cube in an "isometric" orientation (one vertex at the bottom, opposite vertex at the top, all faces inclined at the same 54.736 degrees. For a 51um pixel size, the ideal layer height would be tan(54.736)*0.051 which is 0.072. That should give you a cube where all surfaces have the same "perfect" finish. I'm not familiar with resin printing, so I don't know if that is a reasonable layer height. If not, then integer multiples (2x, 3x, 4x) and unit fractions (/2, /3, /4) of that value should also be pretty good at reducing artifacts. So 0.036 may also work

@EastwoodFabrication 3 года назад

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 :)

@ozgultekin6100 2 года назад

yea, i think this is where anti-aliasing would come in affect -- curious to see how well it works

@VideoCesar07 7 месяцев назад

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."

@benjaminasherbowman 3 года назад

Fantastic Video!

@Penetralex 3 года назад

Really good video. Thank you

@AlejandroHernandez-qd5bj 2 года назад

gosh i love this video. so so good

@gomzovoncel 3 года назад

very adviceable, thank you

@ihorMenshykov 2 года назад

Superb!

@waltonchan3931 6 месяцев назад

Awesome video, you should try printing the nylon-like resin at different temperatures and longer post-cure times to squeeze extra strength out of the parts. I’ve heard a little extra UV and heat can increase strength and toughness a ton!

@garyspencer-salt4336 2 года назад

Well done Sir

@MatheusFP104 3 года назад

Pure gold!!

@ss220astro 3 года назад

Good Info!

@RicsPics-il5ec 3 месяца назад

Great video and excellent description. You could be a tutor with your skills!

@sailtogether3236 Год назад

You are genious! Thank you!

@bflynn2159 3 года назад

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!

@spongeknock7387 3 года назад

Nice info cheers

@nathanb62 Год назад

THANK YOU SO MUCH!!!!!!!

@I__Thingol__I 4 месяца назад

Thank you !!!

@xmetal280 2 года назад

Math to the rescue! This was a really interesting and useful concept, thanks for sharing this with everyone. I often have flat surfaces on things I design so this will warrant some experimentation. Much appreciated.

@jonathanballoch 2 года назад

I bet this same logic can be applied to FDM, but in slightly different ways. excellent

@KoolDesign Год назад

Thanks 💜

@This_Pleases_The_Nut 2 года назад

Gonna try this out on the Saturn S, hopefully it works

@jordidalmau4191 3 года назад

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.

@patronza 2 года назад

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!

@Skipp3rBuds 4 месяца назад

For others out there that just want to calculate the layer height given an angle the formula is tan(perfect angle)*(resolution). Or in excel =TAN(RADIANS(Angle))*Resolution.

@dtj9923 2 года назад

Pretty helpful video. Have you explored compound print angles and anti alias settings at all?

@AGreen-dg5jb 2 года назад

Thank you for the explanation! I'm new and still learning. What resin and settings do you use for your Mono X?

@noway8233 2 года назад

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

@San3djewelrydesignsmyanmar 6 дней назад

Thanks.

@greggrover8247 3 года назад

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 .

@eTraxx 3 года назад

0.047 also for the Prusa SL1

@Aaron.Jackson 2 года назад

Nice concise usable information! Thank you. Do you have any plans to address anti aliasing? I can't make up my mind as to whether it actually helps or not..

@totalmentekemado 2 года назад

not all heroes wear capes.... thank you very much!

@nosalis Год назад

very cool, looks like antialias might help with this quite a bit though

@TrueEliteGeek Год назад

It does. But AA isn’t great on these big flat surfaces.

@Shtukka76 8 месяцев назад

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?

@charlesmitchell487 3 года назад

Exactly what I was looking for. Different topic - do you have a recommendation for resin? We just bought the pfrozen mini 4k. My daughter and I are just getting started and could use some help. Thanks!

@kenengel620 8 месяцев назад

Why did you use supports on the flat cube? I print a lot of enclosures for electronics projects and I print right off the build plate. The biggest issue I have had with it is one you glossed right over. If you look at the bottom side of your flat cube in your video, you can see a big difference between the layers making up the bottom side and where it transitions to the vertical sides. I even sometimes get gaps and hole at the transition line. To help with this I started to make the higher exposed bottom layers include the entire bottom side of the model. That way there's better adhesion at the transfer line. As long as the side facing the build plate is flat it works great. I even have good results printing text and images into that side.

@__--JY-Moe--__ 3 года назад

congratulations!!! yup!! U can gather this information from the autodesk NETFABB...knowing, or finding the way the 3d software thinks..like superimposing the x&y, to equal the xyz 3d print...good job..🤩🍒🍄🚸🛠️📝👾♟️🍟🍔

@spinnetti 3 года назад

Makes sense, thanks. If I got that right, I take the horizontal print size/the pixels which on the mars would be .047 mm, so I should shoot for the same layer height if I want to print at 45 degrees?

@MrBEnIbb Год назад

Thank you interesting stuff! Does this matter with a 8k printer, since the pixels are much finer anyways?

@karllautman 2 года назад

Great video. Couple of questions: 1. When you demonstrate optimizing orthogonal flat surfaces, you only optimize the angle in the Y dimension. Why not also X and (if relevant) Z? 2. In some examples you nudge the layer thickness to achieve a 45 degree angle. In others, you nudge it to achieve a seemingly random angle < 45. Why not always shoot for 45?

@TrueEliteGeek 2 года назад

Some printers don’t do as well as others at supporting a 45° angle. The mini 4k for example seems to have a hard time with a 35 layer height. And sometimes you need smaller or bigger layers for other reasons. But at 45° you are locked into a single layer height.

@karllautman 2 года назад

@@TrueEliteGeekThanks. What about my first question?

@Michael_Hill 3 года назад

Really nice video, thanks for making it. I have a question though. Just got a resin printer (have multiple FDM printers) and haven't printed anything as I wait for the wash station to come in. I was wanting to try to print a cartridge shell I designed for a retro computer. It is a two piece shell that snaps/screws together. One side of each shell is completely flat. No crazy internal angles or anything. Should I still print it at an angle or can I print it flat on the bed? Someone told me that getting a large flat surface off the bed would be hard to do and dangerous for the bed of the reservoir. I look at it from a FDM point of view and I see a 45 minute resin print if I lay it flat, and a 5 hour print if I turn it at an angle. I was worried also that all those supports underneath it touching the flat cartridge surface would really make that smooth surface bumpy too, besides the long print time. Just wondering if this is something I shouldn't tackle with resin and stick to FDM. Any advice?

@raymondjayjohnson693 3 года назад

Thank you. Could we have a follow on video specific to non-flat surface models. I do functional printing where flat is common, but most of my learning challenges are more "organic" shapes.

@TrueEliteGeek 3 года назад

There isn't really a calculation you can do that I know when there are going to be curves. But I do have one coming on how to hide as much as you can on those models.

@ammimz7422 Год назад

11:50 You dont have to recalculate the angle if you just put a minus in front of the angle. But mind that it is going to shift the model into the other direction.

@mystixa 2 года назад

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.

@SteffenRichter 2 года назад

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