Home made 3D laser scanner

[@ovalwingnut]

Incredibly clear (no labels needed :) GR8T work. Thank you for posting.

[@prashkd7684]

Perfect.. Did you ever opensource this project ?

[@MRTOMBO]

Pretty amazing. Have you considered making something that could scan/measure a distinct object, like a machined metal part? I work in manufacturing where we machine small, somewhat complex metal tooling for die cast and mold making, and contactless measurement of those parts in 3D "is a thing".

[@moje754]

I'm working with 3d scanners in my laboratory. To be honest - this particular scanner is just a toy. It's uncertainty is too high to be considered for small meta parts. For this purposes we are using structured light scanners with resolution up to 6 - 10 microns and measurement error less than 0.05mm

[@MRTOMBO]

@@moje754 Thanks for the reply! Our challenge here is that we are making steel molding parts that often have accuracy requirements of .0002" total. In our most difficult parts that might be .0001" total tolerance. To date we've been using manual tools such as sine plates, gage blocks, .0001 and .0005 dial indicators, as well as some Optical Comparators, drop gages, etc. No interferometry or laser based systems. Lots of time to setup for checking, and doing the checking, and it's all serialized activity. I've been looking at Keyence's new "LM" series optical measurement unit. Not that I have a budget mind you, but they are being kind enough to run some of our parts we've provided to them so we can see real-time results. Supposedly 1um accuracy on that. Anyway, thanks very much for your video. That's quite a piece of work.

[@yasuohahadsm1816]

I am working on a similar project that involves a 2-DOF system with yaw and pitch capabilities, along with a ToF LiDAR. After scanning, I obtain data that includes distance, yaw angle, and pitch angle. I use MATLAB to convert these into Cartesian coordinates and to create a 3D view. However, some lines that should be straight appear curved. Do you know why this might be? I intend to use this setup for 3D reconstruction of fluid objects such as sand and gravel, in order to calculate their volume

[@yasuohahadsm1816]

Nice project, but why are some straight lines appearing like curves??

[@3D_Printing]

Have you though about using Interferometer

[@IbrahimEshera]

Also, what program did you use to map each point from an X, Y, Z coordinate to a point in space? And could you talk a little more about the calculations you used with the stepper motor gear ratio calculations? Having some trouble with that, thought an encoder might help.

[@moje754]

I didn`t use any program. I calculate the coordinates directly on Arduino, then send it via serial port and save as one TXT file. Encoder is not required as long as you do not lost any steps on motors. As long as you are 100% sure that you`ve calculated every step, then your scan will be valid.

[@IbrahimEshera]

Marcin Adamczyk I see. would you be willing to share the 3D .stp file for the parts?

[@Fondation3]

Hello, I have a small question. ^^ The specifaction of "Lidarlite (v3 now)" indactes "Precision ± 2.5cm" (130 euros) But if you look the same thing for the "UNI-T UT390B +", the precision is "± 2.0mm + d * 5/100000" (20 euros) Why there is no composant with the same précision (2mm) for this price (20 euros) ? You have an idea ?

[@ultraderek]

They are similar but not the same. They use different lasers for one. Ut390 will make you go blind if pointing it in your eye. I would still not do that with a lidar lite laser, but it is safer. The rest I can only speculate. I can tell you this. For lidar applications, if someone could make a cheaper more precise product with long ranges they would.

[@ShlokMhaprolkarSHLOK]

This is an amazing project and I also want to implement it can you share details about the project. Like the making procedure Which software was used ? What all components were used ? Code for the project . .

[@shelbyhuff4890]

This is very impressive. Can you share your STL files for the 3D printed parts?

[@houssampedro96]

do you use any algorithm to manipulate data from the sensor (to increase accuracy) or the sensor is good enough and you just collect data and display it ? :)

[@robertlee6529]

Great project! May I ask what the software you were using for the design is?

[@francogentili5296]

Great job!. Is it possible to speed up process and still have accuracy? Thank you

[@omerdurmus2980]

Hi, I am going to make a LIDAR like yours. I will wrtie LIDAR data to a TXT file. But how will it be inside of the TXT file. What format should the data be written in? Thanks for answer

[@andrewschroeder8707]

Very nicely done! Do you have some sort of routine that fixes each stepper motor in the same place everytime? Or whenever you do a new scan, do you just assume that you're starting at the "origin" (for lack of a better term). If so, could you kind of provide some detail on how you did that in Arduino? I only ask because I'm trying to do something very similar, but really would like to have repeatable scans (so I can measure accuracy over time), and I'm not too excited about doing point cloud stitching in MATLAB. Thanks in advance!

[@moje754]

Andrew Schroeder Do not exactly understand, what do you mean? The problem is the start of measurement? I adjust the motors position using a limit switches. Very important thing, in my case, is the parperdinculary of axis (horizontal and vertical). As long as they stay perpendicular at the beginning of the measurement- the measurement is fine. But when I start the measurement with non-parpendicular axis - then the measurement is broken. That is why I use a limit switches at each axis. Is that you've been asking?

[@andrewschroeder8707]

I figured it out! I was trying to ask exactly what you mentioned, with respect to the limit switches. Thanks!

[@ginnnnnnnnnn]

Hi, I want to ask. I know how the sensor works by measuring the distance between sensor and the surface objects. The scanning data will be saved into? How to visualize it as a 3D model? What software do you use for visualizing 3D model?

[@agrxdrowflow958]

I don't understand why resolution is so low (20 mm) from a laser! Theoretical resolution is in the microns. Processing?

[@moje754]

Why do you state that theoretically it is in microns? The measurement error of this particular TimeOfFlight sensor jest around 10-20mmmm, the resolution of stepper mottors is 200steps per rev. I'm using microsteping, but still the resolution on 5m sphere is about 20mm. It depends on the distance also, as the bigger the distance the lower the resolution.

[@agrxdrowflow958]

@@moje754 You certainly did nothing wrong. It's the laser manufacturer. In radar, resolution is proportional to wavelength. The wavelength of red light is 700 nm. So I don't understand why these lasers are so crappy at determining distance. D = speed of light / time. Their sample rate must be too slow to take advantage of the tiny wavelength?

[@LucasChamberlaimLucasound]

Do You would be sharing your project? Where can I find that?

[@batosato]

what software are you using to view your point cloud? Great work though

[@alico797]

That's great! ... I hope they upload more videos and that the channel grows ... I subscribe

[@Emaspr]

Nice Project! But how do you measure the position of the stepper motors?

[@moje754]

I don't :-) stepper motors do not require this as long as you do not lose steps :-)

[@Emaspr]

mhmm.. but how does your code know where the point actually is? :)

[@moje754]

Stepper motors: You start at one, specific position of motor 1 and 2 and after every step you pick up laser measurement. The rotation incrementation is already known (can calculate it from microsteps counter implemented in atmega and gear ratio), so you can calculate the rotation angle. After that the only thing to do is transform spherical coordinates to Cartesian one. That’s it :-) Of course you can`t lose any steps - but using step-sticks and motors with sufficient power - you will not :-)

[@Emaspr]

Marcin Adamczyk thank you so much!! I am going to try it

[@cekuhnen]

This is fantastic would you be interested in sharing some insights how we could build a 3D Scanner for interior room Scans with my students?

[@richmorris8240]

do you have the stl files for the 3d print job i like it looks good..... thanks be nice if you could share the code written for that that’s a pretty cool project

[@jeffthom3155]

Very nice.....congrats!

[@SiddharthThakur-12]

Which material are uses

[@lukaszmatecki4218]

What is the 3D software you are using?

[@moje754]

Lukasz Matecki What do you mean? CAD software? Catia v5

[@lukaszmatecki4218]

Heh, I was hoping for something free :). Anyway, cool project!

[@maryamzarringhalam5567]

what 3d scanner software did you use?

[@manickn6819]

Nice project. Decent results.

[@rainergerhardt5029]

Is there a way, to get the stl-Files?

[@waleedahmed4010]

Which software is used for 3d mapping

[@moje754]

what do you mean by 3D mapping?

[@proximus323]

cześć, czy jest opcja podzielenia się plikami STL ?

[@moje754]

Hejka, w jakim celu?

[@proximus323]

@@moje754 buduje dokładnie taki sam system tylko z użyciem dalmierza. Jest podobny projekt na necie ale Twój wygląda na lepszy zwłaszcza że wykorzystuje sprzęgła.

[@proximus323]

@@moje754 Cześć, i jak jest szansa na podzielenie się plikami stl ?

[@raghebbenmrad7808]

hey! Nice project! is the slipring axis also carrying the upper rotating part or it's only the motor axis that is carrying it and the slipring is just follwing the movement(no stress on its axis) ? and what is this part allowing to fix the rotating part on the motor axis.thanks in advance .

[@moje754]

Ragheb Ben M'rad Tge rotating connector on the upper part of the scanner has no load on it - the mass of the sensor is low enough so that the connector do not have to work as a support. You are asking about the small mounting plate? It is just an aluminium plate with center hole for the motor shaft, small BS-screw to prevent from rotating and 4 threaded holes to mount something into it. It is just a common part you can buy with a stepper motor. If You have any further questions - ask :)

[@jafetbarrera4787]

¡Hello Bro! ¡Your project was amazing! I'm trying to build something similar, but I have some problems with my Arduino's program. :'( ¿Would you help me a little bit with the program?

[@mukilan574]

Sir how you convert scanned data into STL or model in catiav5

[@omerfarukyildirim1945]

hello, can you share the drawings and codes?

[@ДелайВсёСам]

Крутой проект ! Молодец ! Лайк !

[@DmitryMikutsky]

What is the measurement error? Have you checked? Manufacturer says 1 cm - it's true?

[@moje754]

Do you mean the laser unit? I Don`t. Manufacturer says that it is +-0,025 m (in the newest version LiDar 3.0). I believe this could be. If You consider my project: well.... :-) 3D printed gears, stepper motors with microsteps setup :-) I would not expect too much :-)

[@muneerahmad8266]

nice project (Y)

[@nesihcoban1138]

this is the project I need to do in college finishing project, can you help me about the materials

[@moje754]

sure - just ask!

[@nesihcoban1138]

how did you get your laser data and show it to your catia

[@moje754]

try to look for informations about the Time OF Flight measuring technique - this is very simple measurement method. Then read the sensor documentation (Lidar V2). Then get familiar with Arduino platform. I`m using Arduino to get data from Lidar sensor. Then data are saved on HDD via serial port that is connected to the PC. You can also use a SD card and storage the TXT file on this card. Then visualization: I`ve used Catia, but there are a lot of app that can be used: for example CloudCompare (freeware!).

[@pinipininax]

HOLA se pueden descargar a autocad?.se puede usar en movimiento?

[@fauzanabdullah4442]

tutorial please for this i very interested please reply me!! :)

[@KJohn-os9yy]

Lasers for 3d Scanner www.ebay.com/itm/112384535961?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

[@muneerahmad8266]

i want a bit help in this project

[@moje754]

ask

[@alisuhairs.altamimi2302]

muneer ahmad I need information about this product can u help me?

[@nullptr4042]

Using a stepper makes the process very slow

[@moje754]

true - but also chepaer :-)

[@dustin3599]

why the fuck was the audio so loud on this

[@moje754]

I did it in purpose, just to make You angry :-) Try to check the volume level in Your computer :-) Have na nice day!

[@MasterMindmars]

There is much information you must submit.

[@moje754]

MasterMindmars What do You mean?

[@moje754]

What do You mean?

[@MasterMindmars]

Marcin Adamczyk Wich kind of laser ? Where can I found the program to generate the green screen ? How works the entire system ? ...

[@moje754]

Hi there, I`m using LidarLite V2 sensor - just google it, there is a lot of this stuff on the internet (as far as I know there is a new version v3 available). The software I`m using is Catia V5, but You can use a freeware one: CloudCompare is realy good for this kind of projects. How does the entire system work? Well :-) Try to figure it out by your own - there is a lot of informations on the internet available. Search for: Time of Flight scanner principles - I`m sure You`ll find everything you need. The principles of working are really simple, I`m sure You will manage!

[@MasterMindmars]

Marcin Adamczyk Ok

[@chhornvandate812]

Excuse me bro, now I am currently working with it for my school mark and I need some help from you. Can you give me your email for me to contact you, please?

[@moje754]

ask - I'll see if I can help you :)

[@chhornvandate812]

Yes, bro I want to ask you that what kind of software or tool that you use to get that 3D mapping? Thank in advance bro?

[@moje754]

Hi, The answer is not so simple. Generally I`m using Arduino Uno platform (ATmega microcontroller) to obtain data in spherical coordinates (2x angles + radius: angles from stepper motors rotation and radius from Lidar v3). This data are stored on hard drive as a TXT file (any soft that can log data from serial port). Then I`m using Matlab to calculate the Cartesian coordinates (You can use Excel, LibreCalc or any other soft). To display data you can use soft like CloudCompare - very good freeware platform for managing clouds of points and triangle mesh). In the movie there is Catia V5 used for visualisation, but this is only because of PoTY competition. Hope it was helpful! Regards, Marcin

[@tuliosouzaa]

That is as clear as it can be. I was thinking about homogeneous transformations for the points, instead of converting from spherical to xyz.

[@moje754]

Marco Túlio Souza Glad to hear that it was helpful. According to homogenous coordinates, I'm not an expert but I think they are better with description in field derectors projection, ex. camera calibration.

[@jimmychen3873]

slow motion

[@SiddharthThakur-12]

Please help me

[@jimmychen3873]

Cruise missiles

[@bogas78]

Bardzo fajny projekt jesli mozesz skontatkuj sie ze mna przez widowmosci youtube. pozdrawiam

[@moje754]

bogas78 pogadamy jak wroce za tydzien. teraz jestem w Albanii

[@moje754]

Hej, jestem już w Polsce, możemy pogadać. pozdrawiam, Marcin

[@bogas78]

daj znac na xerofukagmail.com

[@watch2getherixbit40]

motor too slow, now dislike

[@mlx83]

Cześć, buduje coś podobnego dla drona, miałbym kilka pytań odezwij się jeśli możesz...

[@moje754]

Marcin Lamczyk heja, co tam?

[@mlx83]

Możesz podesłać mi wiadomość na mojego emalia [e-mail], napiszę dokładnie o co chodzi