DIY-Basic Laser Engraver With Arduino

do you want to make nice pcbs at home but you don't want to use a printer or a Sharpie then this laser engraver is the perfect solution for your problem my friend I designed and built this beauty for about 120 bucks let's take a look at how I buil it these are the parts we need you can find the part list in the video description first I am starting with assembling the sigma profiles in this part you'll need eight angle brackets make sure to leave a 2 cm length of space in all four corners of the frame [Music] now I am assembling the feet for the engraver I am doing the same thing for all four sides now I am assembling the two pully holders for the pulley I am using two 3D printed pully holders these are the 8 mm smooth throt holders we need we require four of them now I am assembling the stepper mounts to the stepper Motors after that I am attaching the stepper mounts to the frame for the power supply I'm using is 12 volts and 10 amp I also attaching the power supply to the frame with 3D printed parts now I am attaching my female power PL it's important to note that this method is not the safest way to connect to the mains than this part is going to be the right side of the [Music] x-axis later we are going to attach the belt in this long bolt this is the left side which is holding the xaxis stepper modder this 3D printed part is going to help us in the cable management we are going to zip tie the stepper cable to it this is the middle part carrying the laser itself this is my laser I'm using a 4wt laser with adjustable Focus these two bolts are where we are going to attach the belt now I'm inserting the smooth rods if your rods are too loose you can use some glue this is how it should look in the end now I'm attaching my belts I'm also using some zip ties to hold the belts in place I'm trying to make the belts as stiff as possible to avoid any step loss this is how it should look like in the end now we are adding our CNC Shield to the ardino I'm using 2 a4988 stepper drivers this is a schematic and following this yellow cable is going to carry our pwm signal to adjust laser power other two is for powering the laser I am zip tying some filament to the cable to make it more rigid so it can hold up by itself I am also attaching the stepper cable using the same technique after connecting glass cable I connected my ardino to my computer I am using using laser gear GBL software which is free to use before clicking connect I go to tool section as you can see you can download the CH 340 driver from here for the Clone ardino board Additionally you can Flash ggbl firmware from this section too after that I click connect and then I click on ggbl configuration as you can see these are my settings now I am opening a random PNG file for testing as you can see when I click the blink button the laser blinks when I click the focus button the laser turns on at low power so you can adjust it focus by turning the tip of the laser also you can manually move your laser from here now I am clicking the frame button so it outlines the area that will be engraved I am adjusting it to pass four times then I start the laser I skipped a part of the video and as you can see it's done this is a circuit example as you can see this is a 555 timer circuit in this image you can see the atega 328 chip in the middle there's a grain of rice for size comparison you see two different styles of Engraving pcbs left one is named vectorize and it's way faster I want to mention that my laser is not a perfect dot it's more like a rectangle so traces are thinner than they should be when the laser goes sideways so that's it for this video guys the left is up to your imagination take care and be kind to yourselves see you in the next video

Channel: BitOfElectronics

Views: 5,657

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Id: NyUJvcocJpA

Length: 11min 56sec (716 seconds)

Published: Thu Dec 21 2023