Simple Laser Scanner with stepper motors!

GITHUB FOLDER BELOW
► In this video I show you the laser scanner I've been working on for the past few weeks. This machine turns mirrors very rapidly to create an image on plane. This is called "scanning"
► Normally this is done with high speed galvoactuators, but I wanted to try to do it with stepper motors
► GitHub Folder github.com/NiklasHammerstone/...
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[@hafizgunawan4594]

Very well documented project! Especially your pdf, Great work

[@ShopperPlug]

You gotta use galvos or polygon mirrors or other types of motors other than just stepper motors to make any practical use out of it, but it is a nice laser show lol

[@robb233]

very nice build.

[@diegopinciroli9239]

Gracias por compartir lo voy a tratar de hacerlo

[@robb233]

Add a z-stage, and replace the diode with 405nm and you could create a simple SLA printer.

[@WoodenWeaponry]

Thats a very interesting idea! A motorized Z axis wouldn't be too hard to make..

[@thomasgerster8405]

Wow the steppers are more accurat than i thought!
What microstepping are you using?
I'm wondering if Nema 11 or even smaller would be a better choice, because they have less inertia

[@G7Dropes]

Excellent work, and well documented, thanks for sharing.
I was reading the code, well written, however the PID control is not present, maybe with other types of sensors you can read the analog position.
When you send only the GCode coordinates, the entire calculation hits the microcontroller... could this be performed before the scan and stored in internal memory, 1MB in the case of Teensy, or is the calculation speed not problematic?
I've been developing some galvos, and the sensors are critical, as soon as I finish, I'll post it here ;)

[@adimegan4677]

use high voltage stepper driver, higher voltage make motor more stable in high speed movement... like 48v supply driver

[@98f5]

thank you

[@omsingharjit]

How higher it give the output frequency if its clock are in 600 MHz ?

[@mohammadakbaribirgani7389]

perfect

[@donbevn]

Can we control the power of the laser via gcode for engraving (like S command in grbl?

[@WoodenWeaponry]

In this particular design: No. The laser driver is driven via a digital output / transistor. But in principle you could try to connect the VR Pin of the laser diode via an electrically driven potentiometer to GND in order to control the laser intensity.

[@qbitsday3438]

I would like to know if the buck convertor is a constant current or a constant voltage - I am new ,want to use on red laser for medical purpose- Thank you very much.

[@WoodenWeaponry]

It is constant voltage and therefore not suitable of driving a laser diode

[@qbitsday3438]

@@WoodenWeaponry Thank you for the response . I would like to know if we can use a CDROM tray open motor in place of Stepper , with Rotary encoder with the motor , like the one in this link , here he uses maganetic encoder , since i have the old ball mouse i would like to use the encoder wheel with the motors i dont know how to go about .. The Link : th-cam.com/video/gK14SaaYMoc/w-d-xo.html

[@desys.]

DIY Simple Looser Scanner with step by step

[@amansingh-ct8ie]

You didn't show us it's working and LASER projecting on the screen. We only got to see the mechanics, electrical and coding, kindly upload a video to show LASER projecting the Integers, characters or shapes or similar.

[@omsingharjit]

You can write g code
...
Can you make video on g code prog writing ?

[@erickschullz]

hey i only have 28byj-48 stepper motors, can i use them in this project?

[@WoodenWeaponry]

I guess, but the low accuracy, speed and torque of these steppers will probably significantly reduce the overall accuracy of the output. I'd recommend getting some nema17s instead.

[@KenanSatir]

No you cant... they are very slow and have huge backslash...

[@artandtechnology3022]

Hi I want to run this system on Arduino Uno because this is available for me

[@motherphonkerofficial]

When will you make wooden weapons again?

[@jhrlasers]

I don't think an OEM Standard Scanners now days are that expensive as you might think..
Trust me, you might get like at least a 20k or 25k.. for just a few bucks..
But oh well, not recommended since we all actually goes up into 30k as standard 😉🤗..
But you should check em out tho, at least get one so you can explore what's inside of it and maybe explain on how it works deeper and more accuracy 🙂

[@artandtechnology3022]

So please share the firmware that works with Arduino Uno

[@WoodenWeaponry]

Hi, an Arduino would generally work, but it will probably be much slower than using a teensy. The code on the GitHub page (see video description) is compatible for arduino (since arduino and teensy use the same IDE and language) but you may have to change some pins.

[@artandtechnology3022]

@@WoodenWeaponry Hello, I downloaded the firmware on the Arduino Uno, but the stepper motors did not move and no voltage reached them. Even when I turn them with my hand, it seems to move easily. It was not connected. Can you help me, send the firmware and modify the custom pins to the Arduino or

[@WoodenWeaponry]

@@artandtechnology3022 Sorry, I don't have the time to modify the firmware to other systems. I did try to keep the Code as clean as possible so that others can modify it. In your case you should confirm whether you are using the using pins. Use a probe to check if they are working. Make sure your stepper motor drivers are connected and powered correctly.