Problems I had with Revopoint Mini 2

Hello, I am Ercan from Turkey. I bought Revopoint Mini 2 a few weeks ago.

I am experiencing 3 different problems and I would like to ask you about them one by one.

1)I am scanning the part you see in the picture below. The part has a hole for the pin to pass through. I cannot scan and close this hole properly. Because when I say find the holes, it completely closes the hole. However, I only want the missing places to be closed for the pin to pass through.

As you can see in the second picture, it covers it completely. However, I want there to be a perfectly round hole.

2)My 2 problems are that such irregularities occur on the surface. Why do these irregularities occur? I am trying different methods to ensure perfect farming. I scan the piece separately from different directions and perform MERGE, or I continue scanning by turning more than once, but I often encounter this problem.

I isolate, overlap or simplify many times to get rid of this surface. Sometimes I wipe the surface of the piece there and make Fill Holes to complete it. But no matter what I do I can’t smooth this surface

3)My 3 problems are in assembling the parts. As you can see in the example below, I scanned the front and back of an iPhone phone case. I cannot combine these two. It cannot combine it with Feature itself. I’m trying to combine it myself with the marker option.But even though I marked the numbers, I cannot combine them correctly. I tried this on several different pieces, but it doesn’t work.

You haven’t shown how to combine it with marker in any of our videos.

And finally, I would like to express a problem I noticed yesterday. The one in the video below is a black piece and the revapoint pop 3 or range can see it very well. But my Mini 2 cannot see red colors, dark colors or black colors at all. I definitely have to paint the parts white or use spray. Frankly, it cannot see many colors other than white. Why is there such a difference?

I’m tired of painting products white. I understand that you may not be able to see black color with blue light. But there are some parts that I cannot paint white. because I need to use that part again. I don’t expect it to see very dark black, but it should be able to see at least those with certain tone colors.

Frankly, I regret buying this product a little. It is very expensive and I cannot scan almost any product with its own color. According to the video, pop 3 or range scans better. I chose Mini 2 just to see small parts and details. I didn’t know I couldn’t scan any products like this. This is really annoying.

I know I could never scan the exhaust part in this video with my Mini. And this is really annoying. While Pop 3 or Range can see these blacks, why can’t Mini 2?

1:You will get a perfectly round surface for the bore hole only if you can gain good data and direct line of sight all around the bore hole, still there always be a limit on how deep the scanner will penetrate a hole. If the data from one side cannot reach the data from the other side through the hole, you will basically get two round edges inside the center of the bore hole. How that will be filled automatically is totally dependent on the situation and the software. You must understand that scanners do not know what they see and how they are supposed to look like. Interpreting the data and patching it up will always be the users job. This kind of post processing can be done in 3rd party softwares and other mesh sculpting tools like meshmixer or blender for example.
You will always get noise data around the perimeter and edges of the part where points will just roll off of the obejct into empty space. the software can clean those up if there are good overlapping subsequent scan frames all around the edges of the obejct
2: Right now, even if you do everything right, merging two scans will often create anomalies on overlapping areas and also create seam lines. This is a problem revopoint is working on currently, but for your information, this problem is not exclusive for revopoint, it happens with other brands as well. It all depends on the accuracy of the gained scan data. There are perfect software solutions for this, you just need to wait for them to be implemented and uintil then, build on the strenghts of the tool and try to avoid its weaknesses! Currently the solution is to try and scan the object in one go, in one single scan. You can read up about the problem and avoidance on the forum, you will find this alot. Quick answer: use marker mode and markers on the object or attached fixture to let you transition from one side to the other seamlessly!
3. Thats a real problem many have reported to revopoint including myself. They are working on it. Current solution: Make a scan of the object standing on its side, do the scan in marker mode, all around the object! You do not have to cover all the surfaces, but just enough to create good overlap between the two sides. After that, you can align the two sides onto this scan you just did.

For painting: Thats the reality of 3D scanning, basically all 3D scanners need a prepared surface if they are dark, shiny, see through or just simply absorb ir light. Even the higher grade industrial and laser scanners do need prep work if you want to gain quality data instead of a noisy one. How much of difference will there be and what you can get away with, depends on the grade of the scanner used.
In case of the revopoint scanners we are talking consumer grade scanners. With more budget you can go multiple tiers up, to professional scanners and higher to metrology grade scanners.
I own more high end scanners that cost mutiples of the revo scanners and it is the same with them too, weaknesses exists mybe to a lesser degree, but generally the differences lie elswhere.
You don’t have to actually paint your objects, you can spray your obejcts with washable or evaporating scanning sprays, there are multiple topics on the forum about this if you look it up. Foot sprays, dry shampoo, weld crack inspector developer sprays, mixtures of baby powder, corn starch with alcohols and not to mention the purpose made evaporating scanning sprays from aesub and the likes.
In your video I want to point out a mistake. Your scanner can see other things that are not the scan subject, that will mess up your alignment in feature mode.
You need to create an environment, a backdrop where the scanner cannot see anything other than the object you want to scan or the attahced fixtures and marker dots. All the things the scanner can see need to be fixed relative to eachother, otherwise the software may not be able to determine which geometry to align to which other geometry.
Read up more, learn scanning a bit more deeply and you will have success!

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Hi @ercan_wrc , here you have chosen the wrong marking point actually. Because you scanned two opposite sides of the phone case, you should have chosen it like this:

It does seem a bit hard to judge.

Can you send us this project?

MINI 2 uses blue light, which absorbs colors like yellow, red, green, and orange. Therefore, scanning objects of these colors can pose some challenges. However, POP 3 and RANGE use red light, allowing them to scan black objects as long as the material is not reflective.

The MINI is designed to scan small objects with rich details, so some preparation is required for the objects, and the blue light is used to capture more details.
You can try scanning vibrant-colored objects in the black mode, but if that doesn’t work, we recommend applying some scanning spray to the objects. You don’t have to make them completely white, just lightly dusting them should suffice.

dear lajoosh;

I’m trying different methods to get to know many products better, but I can’t say it’s very successful.Thank you for taking me into consideration and writing at length.

Dear Jane;

First of all, thank you for your interest. My intention is not to criticize this product. Please do not misunderstand me, but I have tried a lot of products with maybe 20 different products, but I could only get the result I wanted with one of them.

I want to send you the project you want, but I don’t know how to send it.

Since I use English translation, I may not be able to explain exactly what I want to say, but I would like to briefly write to you about the problems I saw and experienced.

First of all, the reason why I chose the Mini 2 was to be able to work on small objects and see the details.I did not buy the Mini because Mini 2 seems to have a slightly improved field of view and an Anti-shake 9-axis IMU feature as in pop3 and miraco.I was thinking that I could make a good scan with the scanner in my hand, but with the slightest movement, the entire image is distorted and the scanner cannot align properly.As far as I can see, it is almost impossible to use this Scanner handheld. Maybe a stabilizer needs to be purchased, but its price is too high, so I don’t scan handheld anymore. I don’t even try it.

Many objects around us consist of different colors. There are millions of different products and hundreds of different colors, but Mini 2 cannot see almost any product except white and shades of white. This was a really big problem for me. Ok, I risk everything and paint this product white with acrylic paint or agricultural spray. I spray it or try to use products such as dry shampoo and powder, this way I can make it see the product I want to scan.

However, I choose the dark object to see the product better, but when I choose this, it cannot track the product properly because it is difficult to see and scan it properly. I want to use a marker for proper tracking, but when we select the dark object, the marker mode is not active, which becomes a big problem. Especially when the short edges of the product rotating on the table coincide, all tracking is lost and it moves towards space. I want to use marker to prevent this, but there is no option to use marker on dark objects.

Another problem is that the field of view is very limited because when we put any object, it already takes up space on the table. I try to scan properly by placing different objects next to it or select the marker mode, but there is no space left to see the objects or brands next to it.

In fact, when you want to scan a figure, the product works very well because there are so many indentations and protrusions that it does not lose tracking in any way, but we will not just scan the figure, right?

As I showed in the example above, we need to scan the battery cover of a TV remote control or the heater grille of a car.Maybe we need to scan a broken button or a similar small part. Unfortunately, mini2 is not successful at all in these objects.Actually, Mini 2 is a successful device as far as I can see and understand, but your revoscan software cannot keep up with the mini2 device, I cannot track it properly, the measurements are shifting.As I mentioned above, the software must have a full circle selection and drilling process. There must also be a softening option. However, this option should only affect the selected area, that is, not the entire scanned product.

I do some experiments to scan the product properly, for example, after turning one full turn, I stop it, open it to a new side, and scan again at the same angle. And then, when I combine them, the superficial problems I mentioned to you appear.

In order to avoid this problem, I try the following: After scanning the product for one full turn, I continue 2 rounds, sometimes even 3 rounds, but during this time, there are slippages at the points because it cannot follow the product properly. And again, I cannot get the result I want.

Then I want to try a different method and I do the following: I scan half of the product in a full circle, then I stop scanning, turn the direction with my hand and say continue scanning, but shifts occur again. Then I try this, I scan only one side of the product, a smooth and beautiful side appears, then I move to a new side. I scan another side and I still get a good result, but when I combine these two, what I get is a rough surface again.

In short, we cannot get a correct result when we turn it full circle without touching it, nor when we stop and start the scanning again. Even when we scan surfaces in more than one different way and combine them, we cannot get a proper result. So, with what method can we get a proper result?I will send you some pictures to show you how much scanning I have done and how many different methods I have tried, but as I said at the beginning, I have not yet been able to obtain a smooth, clear, non-slip and beautiful scanning result, except for one figure.









image

You have many more attempts like this, but as I told you, I am not really satisfied with this product and I regret buying it. The price may seem affordable in European countries, but in our country it is sold at a price that is the first times the minimum wage.

It cannot scan objects such as black and red, tracking is lost, you cannot see thin edges, the merging is not smooth, the working distance is very limited, it cannot scan in too much light, you cannot see many colors,You cannot drill the holes properly, the surfaces are often rough, no matter how hard you try, slipping will definitely occur after 2 rotations or when you change the angle of the object.So what can I scan properly? Just a figure?

Taking a product and trying to paint it or change its color to prevent reflections in order to show it to the Scanner, then trying to remove the roughness on the surface and succeeding in combining it correctly and trying to take the result of this definition and correct it with another program. I’m going to try so hard, but it makes more sense to sit down and draw.

The main reason I bought a scanner was to avoid sitting and drawing for hours. But believe me, trying to fix the file provided by the browser takes more effort and you try to learn new programs. Meshmixer, quicksurface, blender etc. As I said above, it’s really bad to pay twice the minimum wage and get nothing.

It’s been 10 days since I bought the product and I’m constantly trying different ways every day, but it’s not successful. I regret the money I paid for the product, but I cannot return it. because I opened the box and used it. This is an electronic product. The company does not accept returns. I really regret buying this product. I’m sorry but these are the facts. I wanted it to be an example article for those like me who are undecided about whether to buy the product or not.

Maybe I wish I had bought the pop3 instead of the Mini 2. At least black objects wouldn’t have to be bothered as much, and the working area would have been more comfortable since the distance was a little longer. I think it makes more sense to sacrifice the loss of detail and buy pop3. Because you can’t do anything with this product, I think Pop 3 can at least track more markers, or loses less during tracking because it sees an object at a wider level. It might even make sense to buy Miraco, but it’s too expensive. But it is a fact that unless the revoscan software fixes these errors, how right is it to buy a revopoint scanner? There are many people using 3D printers in Turkey, in fact, Turkey is the country where the Crealty brand sells the most 3D printers worldwide. As a result, even home users are now buying 3D scanners. (Just like me.) Unfortunately, I will not recommend Revopoint to those around me.

Still, thank you for your interest and trying to solve the ending.





By the way, I would like to point out that, as you can see in the pictures, I try painting the invisible parts of the products, putting different objects next to them, sticking brands, etc., but I use them, but you can see the results above.

I don’t intend to criticize you, instead take this a the experience of someone who has success rather then failure with the revopoint scanners!
In my opinion, all you have shown here, what you wanted to scan, I could do it fine with either a mini2 or a pop3. Obviously, the revo scanners are not the highes standard and most easy to use tools ever. Occasionally I do get bad results, but honestly all of those cases are the result of my own neglect, impatience or lazyness. I can see and acknowledge that and start over with more effort because I know and I can relaize what I did wrong. However if you are a beginner, you might just not know / do not understand and be able to realize the deficiencies of your methods. I think this is the case with you. Your scans are not that bad, they just miss a bit of refinement in your methods.
(I must add, even if you achieve good scans with no errors, dimensional accuracy and detail reproduction is a whole different topic on their own.)
So I will try to help you a bit:

I use the mini2 often handheld and the pop3 exclusively handheld only. If the object is prepared well, the scanning method chosen for the situation correctly, then they are perfectly fine to use handheld. If you make sudden movements, frames can be distorted and misplaced. This can happen to any structured light scanner, even if multiple tiers higher, albeit to a lesser degree.

That is a thing with scanners, different wavelengths interact differently with colours and material types. I’m surprised you have trouble because in most cases my scanners can see the surfaces even if I don’t prepare them. Do you use the exposure settings correctly? I have never used acrylic paint to scan anything, except for obejcts I wanted to keep as reference for comparison to scan with different type scanners once in a while. The formentioned scanner sprays always worked perfectly.

You should always keep the dark object mode as a last resort if you cannot spray the object for some reason. It should not be a high priority aspect of the scanner in my opinion.

You need to choose your scanner according to your needs. I understand you have limited budget, but for the same reason, you just cannot have all the things in the world for cheap. Thats how life is. I have multiple scanners for various reasons and types of use cases and I spent many thousands of euros to gain the capabilities I have now, and it is still not enough!

I see you have a lot of tracking problems. Could it be because of your printed markers that are not reflective, causing the problem, barely registering as markers in the revo software?
As you can see, since others have success scanning even really small parts, there must be something wrong with you setup, your method or the computer you use, I can’t see how else you are having such a bad time.
As far as software functions, it is what it is, you can be happy for the tools that come for free and buy third party software that allows you to do other, more specific post processing jobs to be done. Do not forget, you are talking about a consumer level 3D scanner. Be thankful it does not come with a subscription!

This means that while going around the object, there are areas that have insufficient geometry for proper tracking. Put on some blu-tack blobs on that area to create some extra geometry or use marker mode!
Do not go over the same area mutiple times, that will only make your data less sharp.

For this boot example: Since this is a flexible object, I would put shoe shape holder inside and also make some kind of rigid fixture to be able to manipulate the boot without actually touching it. Use marker mode, stick sufficient 3mm markers around the boot, be careful to only put markers to flat surfaces and not cover details!
Scan the boot all around while it is upright, then pause scanning! Flip the boot over to whatever orientation that lets you scan the remaining areas! Point the scanner to an area you already scanned and has sufficient markers and continue scanning in the same scan project! It will be a succesful scan this way.

You can scan all the things you showed us as example. You just have to learn the ways of the Jedi!

3D scanning ideally represents the very last details of the scanned objects, including its real life imperfections, so that is a good thing. It was never meant to create models for you free of the obejcts defects, to give you an ideal model of how it supposed to look like, you have to do that youself. A 3D scanner is a measurement tool.

Many times it does.

Do not be this pathetic publicly, please! There are european coutries in the same situation. Have some dignity!

It is a trade-off: Larger field of view, lower detail reproduction. Generally the pop3 is a more versatile tool, the mini2 is more specialized for small items.

that is true for feature tracking.

It is what it is right now, they always work on fixing bugs and improve the scanners. However do not expect other brands products to be flawless either, given the price range and target market.

Yeah, some times, it is tricky to scan models.
First of all, when I need to scan holes - i put a rod inside of the hole. It will give a perfect center line for the further editing.
At second, I will recommend you to calibrate a scanner. It is a simple process, but it could improve the quality.
At third, using a mating spray (such as TiO2, or baby powder with 99% IPA) - really good solution and it really works good!
Next, the best working distance for this scanner is about 180mm! If you get closer than 140 or go further than 240mm you will lose accuracy.
Also, I could recommend you do not scan under the strong and harsh lightning, and to use simple background.
Yes, you need a time to accustom to the scanner, but it absolutely worth every cent it costs.

I think you need to speak a little more clearly. After all, we have paid a price. Of course, we will wait for the return. You defend this brand too much. Maybe you have a collaboration, I don’t know, but I write the facts. I even look at the comments of the videos I watch. Believe me, I am not the only one expressing these things. I will send you an example video. please read the comments below

I paid 900 dollars and of course I will ask for the money back. Check out this video below. Revopoint mini2 is $900, einscan is about $1000. Now am I guilty when I say this? I think you are speaking very wrong. Also, for your information, never talk like that about the honor and pride of a Turkish person because you are too angry. It’s not your place to question my honor!

What do you mean, be more honorable? How can you talk to me like this? I think you should be honorable and don’t be a brand lover or a brand sponsor! I am not a YouTuber who can be bought with money or sent gifts. I’m not the one whose dignity should be questioned. You should question those who sell their honor for money.

We cannot achieve this smooth surface with Revopoint in any way.

einstar vs pop3
As I told you, Revopoint cannot track and revoscan does not work properly, which is why unevenness occurs on the surfaces. To prevent this, you make 2 or 3 scans, but when you combine them, roughness still occurs on the surface.

I would appreciate it if you don’t reply to me again. I opened this topic. If it doesn’t suit you. If you don’t like it, you don’t have to reply. You don’t have to be rude to the other person. It’s as simple as reading the topic and if you don’t like it, don’t reply. If you want to write an answer, you can write it within the limits of decency without insulting the other person.

Here’s our awesome scan as we head into space! a revoscan app with great tracking and my awesome mini2. I tried to explain it to you above. Mini 2 may be successful in terms of hardware, but it is very bad in terms of software and you cannot track it in any way. This is clearly obvious. Why does no one accept this?

Why do I buy a scanner? To save time and produce products quickly. Isn’t it so? If I am trying so hard to make a scan, why am I buying a scanner? I would like to have a Scanner anyway because I don’t want to bother. But we struggle for hours with different methods to do a proper job of scanning something into the scanner. Then, I can also draw, why would I want to have a Scanner?There is a saying in Turkish that we say “I made 40 somersaults to do a job”. This means that in order to do a simple job, you have to deal with 40 nonsense things. This is exactly how this browser works.

Thank you for your suggestions. Yes, I bought a powder and I have isopropyl alcohol on hand. I will definitely try it. I did the calibration, but the surface drivers still bother me.

Is that your scan? I see a highly underexposed dark plastic shiny object and a highly overexposed object on the same turntable.

The dark object is too long to be scanned by the Mini2 on a turntable while shooting straight at the object. Given the width, it is impossible to keep it within a decent working distance as it rotates. The working distance has a range of only 130mm (from 120mm - 250mm away from the scanner). That it loses tracking on the flat symmetrical part that is highly reflective and ends up way too close is not surprising.

Dark mode is last resort, and auto exposure is going to drive you nuts with the disparate surfaces on that turntable. That plus the highly variable working distance as the overly long object rotates is a recipe for a bad scan.

Despite all that, part of that scan is probably still usable with some effort in cleaning up the frames.

I am well aware of the weaknesses the revo scanners have. I see the same people having the same difficulties over and over, until they overcome it. As I said, you need to work around the problems and limitations, that is how it goes with my other brand scanners too. They just have different skill sets and capabilities, obviously more capabilities came for more price.
For example, I remember we had so many failures, sh!t scans with artec eva when doing car body scans, yet we pressed on and found working methods that got us to where we wanted to be at the end. And again we are talking a multi thousand euro scanner with yearly subscription, what a pain!

I’m not angry at all, but your whining was pitiful, in my country, the minimum wage is €670 so man up! Also learn to accept some minior criticizm and the possibility that sometimes YOU are the problem, and not balme it on everyone and everything else!
I stand by my point, that these scanners are useful tools, you just have to learn how to use them well. They are not the tool for every and all jobs though, but if you only have one scanner, well, you will find a way to do it with whatever you have.

Yes I have been working with einscan SP, I know it well. The surface smoothness and the precision it achieves is because it is a fixed type scanner with a different working principle, the revo scanners are handheld scanners, even though they come with tripod too. The difference is the SP can scan slow because it is fixed, it can utilize slower but better image quality cameras, more detailed and more varied projection patterns. The revo scanners, being handheld, they have to be as fast as possible in order for the frames not to be distorted or smoothed by hand motion. As a result, the frames are noisier. That is a trade-off. However, if you have a couple thousand euros, you can go up to higher tier handheld scanners that are even faster so they get better surface quality. By the way, I can achieve pretty smooth surfaces with the revo scanners, no problem. It is surface preparation…

Because you did a sh!t job in your demonstration video. The subject is shiny metal surfaces with no preparation, the image is underexposed, theres no good and distinct geometry in the frame except for that white block, which is overexposed, no markers nothing. Then you blame the tool for not working, where you created a situation which would nearly be impossible for very expensive scanners too.

3D scanning is not for everyone.

Allright, to end this, I offer you a bet! I bet I can scan all the stuff you showed us here, you wanted to scan but failed, no problem. A boot, a hubcap, a phone case, and that clevis joint looking thing. Only using revopoint scanners, no texture, just good decent geometry, without frame slips or overlap problems. Surface quality and detail reproduction will be hard limited by the scanners capabilities. The bet is your country’s 1 month minimum wage! Are you in?

Here are some of my scans of shiny metal parts I did with revo scanners. No problem. You know why I scanned these with a revo scanner instead of my pro scanners? Because of convenience.
(edit: I did that V8 engine just for fun with the pop3, and even that turned out good. I only sprayed the surface with some dry shampoo, scanned it with feature tracking, no markers.)





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Yes, I did not make any preparations in that video. It was just a video I uploaded to show the event. Look, man, I am trying to scan such a simple piece. Moreover, I am trying to scan it in white color, but even though I put a different object under it, it cannot detect it even when I change its direction. After not being able to scan even such a simple piece, this device What is its use? When I stop scanning and turn its direction, it should be able to detect it very easily because there are indentations and protrusions. If it cannot detect these, it is obvious that there is a software problem.

This product requires a lot of detail in order to scan it correctly. There is no problem scanning the figures because there is so much detail that it can distinguish it, but as you can see, no matter what you do in simple parts, it cannot distinguish it and the images get mixed up. What I am trying to scan is the grooves on the inside of this product. I tried but I couldn’t comb it in any way, and as I told you, even though this product is a different color with a white color that is easiest to comb, and even if I cover it with dry shampoo or powder, it makes combing much more difficult.

In my article above, I sent you other people’s videos on YouTube and their comments below. I recommend you to read them again. Do you think the problem is with us or are you the only one who knows this job? You say that you do everything very well. But I and many people like me complain about the Revoscan program.

In the other video above, a mechanism has been set up and both scanners scan the same product at equal distances under equal conditions (einstar vs revopoint)… and as you can see, there is a motor that provides movement. Why can einstar scan but not revopoint? The problem is clearly evident in that video. Whether you accept it or not, there is a problem. We are talking about a browser that takes hours for a simple scan.

I recommend you watch this video again until the end.

in your mini2 test fail, you are making 3 mistakes:
1: if it is such a small object, you should use marker tracking mode and just put the item alone on the turntable with markers. If you want to do the scan of both sides in the same project to avoid seams, then you should have put some markers on the object itself to an area that will overlap to both sides. Scan one side, in a way that includes not just the markers from the turntable but the markers on the obejct. Next, remove the part from the turntable, put on a turntable topper with differently arranged markerdots, place the object back on the turntable, now filp over to the other side. Start scanning from the markers you put on the object and work your way back to the turntable markers. you would have excellent result.
-You scan in feature tracking mode but you have two objects on the turntable and you move them separately, their position relative to eachother changes. The software gets confused where to align the new frames. never move objects in the scene unless they are rigged together! Even though you did this mistake, the software did a fairly good job keeping track.
-Even if you were to not make these mistakes, the two sides of the object just look to similar if not the same mirrored. How would the software differentiate between the two sides? Theres no way for it, they look the same.
Still these are user errors, if you were to take your time to learn and understand how these work, you would utilize the correct methods and your scanning would be close to effortless* with such simlple objects.

Yes, I think you and those many other people are just new to this field and need to learn.
I admit, there are more easy to use scanners on the market that would help beginners better, however they are generally one tier higher, along with their price.

In this video, the problems are: the surface was not prepared very well, and in case of feature tracking, there wasnt much features to track, in case of marker tracking, often there was just not enough markers in the field of view.
In every case, the einstar is in an advantageous position here because it has a much larger field of view, so it can see more geometry in feature tracking mode at once, and also more marker points in marker tracking mode.
The einstar is a good scanner, but we are discussing revopoint scanners here.

Meanwhile I did a test. I usually don’t do such things as clothing, but I wanted to see for myself. After all, the shoe is the benchy of 3D scanning.
I present you: My hiking shoe, with dogsh!t stuck to its treads.


As you can see, theres nothing special with the setup, no markers, just some dry shampoo was used. It is all about the method.
The scan was made with the mini2 in feature tracking mode.
You can see, there are no misaligned frames or noise. I promise I did nothing at all with the data, except for the isolation and overlap detection. This is not meant to be an examplary work, I did not do a thorough scan of every detail, just a quick one.



I do teach 3D scanning if you are interested :slight_smile:

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Look, I brought a white shoe for you and when I scan it, I first scan the front and sides. Then I stop the scan and move it back a little, so I can scan the back side. Can you watch the video to see how the image shifts suddenly?

This is another example, but I don’t pay much attention to it because it doesn’t have much detail or I don’t have any preparation. But as you can see in this shoe video, I can’t even scan the lower part, because the image completely slides until the scan is completed.

Well this shoe doesn’t have much distinct geomerty on it, only some surface details. So when you get to the heel part, that is basically a ball shape, misalignment happens.
The heart shaped thing is just mainly some paralell planar surfaces, theres nothing to track, but the center cylinder-like shape. The software behaves as expected, it will match that cylinder like shape and the planar surface, but not all degrees of freedom is locked down by this, so the data starts pinning out of control. I understand that you can see a heart shaped edge, but for the computer, it is not an edge, it is just an area that has data, next to another area where there isn’t any data.
Both of these cases would have required marker mode.
These principles I just described applies to all the 3D scanners in the world, given the same situation.
Believe me, all your problems stem from your lack of understanding of the technology. Give it some time, read up about it, practise, and you will have success!

I understand very well what you want to say, but you cannot understand me. For example, I still continue to scan that shoe with different methods and somehow I scanned the upper part. Now I will show you the problem again, please watch the video and explain to me how the software combines the sole and the side of the shoe, what does it match and combine them?

You may be right about the sides that are very similar to each other, but he just joined the sole and the sides of the shoe, so every time I scan it, it becomes nonsense in a different way. I also wait especially and start the scanning process again in the most obvious places. You can pay attention to this. I say the same thing again. Revopoint Mini 2 device works really well in terms of hardware, but Revoscan software cannot keep up with this device and ruins the whole scanning.

For the shoe, the scanner is pointed at the bottom of the shoe the majority of the time so you’re not fully utilizing the FOV available. It’s also a long object that gives you a wide variance of scanning distance as it rotates.

Similarly with the heart scan, the turn table is basically in the bottom left of the frame, and the rotation of the object is moving too much of it out of the FOV of the scanner.

For both of these, what do they look like after fusing and meshing? It seems you’re judging only the raw capture, and it’s rare that all those frames will align in the preview window.