Professional Customization Expert For Industrial Laser Machine&Laser Cleaning Machine

Arduino Laser Engraver Wood Design!

by:QUESTT     2020-06-22
Hello everyone, my name is Michiel and I will show you how to make a laser sculptor that looks great!
A few months ago, there was a CNC challenge at instructures, and when I looked at the entries for the competition, I saw some really cool engraving machines, and I thought, \"Why don\'t I do it myself? \".
So I did, but I don\'t want to do other people\'s projects, I want to do my own projects.
So my story started. . . :)
This laser sculptor uses 1.
The monthly W 445nm laser module, of course, this is not comparable to the laser cutting machine using laser (a lot)more than 50W.
But this kind of laser is good for us.
It can be cut by paper and cardboard and can be carved in various kinds of wood.
I have not tested other materials yet, but I believe it can carve many other materials.
I will let you know!
It has a large carved surface of about 500x380mm.
Who did this laser sculptor?
Hello everyone, if you are an engineer, a lawyer, a teacher or a student like me, you can make this thing!
All you have to do is follow the instructions.
It took me about three months to design and manufacture this engraving machine, including about a month to wait for the parts.
I said three months but, I\'m only 16 so I can only work on weekends.
As you may already know, this \"machine\" uses 1.
8 w laser with a wavelength of 445nm, the radiation of this laser is very dangerous for your eyes, even its reflection!
So I highly recommend you safety goggles with the laser wavelength you use!
You can\'t make a laser engraver without parts, so I made a BOM-
List almost everything you need to do.
Almost everything in the BOM is purchased from the AliExpress.
Because it is cheap, and most items can be delivered free of charge.
Other parts like three poles and wood chips were purchased at my local DIY company.
I ordered laser and laser drives on ebay.
Update: I uploaded BOM in two formats: one. pdf and one .
Because not everyone can open the BOM.
I am trying to find the cheapest product for all parts (
Freight is not included).
Well, I spent a lot of time before I came to this design, first of all I did some other design, but this design is really the best design I did (if i may :)).
I have drawn all the parts you need to make on my computer and I uploaded them somewhere in this step (go find them! ).
If there are some sizes missing on some drawings, that\'s because I\'ll tell you later in this manual, or because it really doesn\'t matter :).
The whole machine is made of medium fiber boards with thickness of 18mm and 12mm respectively.
I also did this design because of the connection Z-
Shaft and dremel rorary tools, so you can convert it to a cnc router.
Update: Do you want to make parts with cnc router? No problem!
I uploaded STL files for all parts so you can make them easily with a laser cutter or cnc router.
** Sorry for the names of all the parts, I think they will be better.
Of course, I can do a simpler design. . . But hey!
Where is the fun of this!
One sentence in this step: print the drawings! :)
When you print the drawings, draw them on your piece of wood (the right ones! )
Show them with puzzles
If you don\'t have a puzzle, go and ask your brother, neighbor, cousin, colleague, Santa, or go to your local store and buy one.
When all the parts are sawed into the correct shape, it is time to drill holes. -
Electronic case front and top: these parts don\'t have flat sides, so I drew an angle on the other side with a pencil and used a dremel rotation tool with that sandy bandy thing on it, I really don\'t know its name.
If you don\'t have dremel yourself, please don\'t bother your friends any more and buy your own dremel!
Jokingly, the spin tool is a very handy tool and you should really buy one. -The X-and Y-
Shaft nut holder: there is a hexagon hole on these parts so that they can fix the nut.
To make a hexagon hole, you need to drill a hole with a diameter of 11mm on the part.
Next, put the three-point rod into the hole, screw the nuts on both sides, pick up the pencil and draw the shape of the nut on the part.
Remove the nut and screw bar.
Now, pick up your dremel again with a small cutter on it (see images)
, Cut out the hexagonal hole with a depth of 6mm and put the nut in it.
Take a look at these pictures and they show what you need to do.
Now you have all the parts you need to assemble it.
The first thing I do here is to install the door on the left side of the electronic chassis with locks and hinges (
This is the easiest part, so I did it first: p).
I used a lot of L-to assemble the electronic case-
There are shaped iron pieces with holes, I don\'t know what they are called in English, but when you see these pictures, you will know what I am talking about.
If anyone knows how to call them, please leave them in the comments and for now I will call them \"those things \".
Update: these L-
The forming iron with holes inside is called L-brackets. ; )
First of all, from the left side of the electronic chassis again, install the front and back of the electronic chassis with something I talked about.
I didn\'t use screws or nails to install the top and control panels, I just installed some of them again and placed the top and control panels on them, because when you want to put electronics in there, you won\'t have a problem.
Don\'t forget to install some of these things to the right side of the electronic chassis and install them to the rest of the chassis.
Place the electronic box for a second, remove the substrate and X-
Install the shaft support as you can see in the picture, make sure X-
The shaft motor bracket is located on the right side of the carving knife.
Now, you can install the electronic housing as you can see in the picture.
Take two 700mm shafts, slide two linear bearings on each shaft, place one shaft bracket at each end of each shaft, and install it on the sculptor.
Now you should be the seventh picture. If not?
Go back to a few steps and find out what you did wrong.
If so: continue to do a good job!
Engrave this half laser for a minute and take X-
Axis moving part and y axis
Shaft stand and install shaft stand to X-
Shaft moving parts with some nuts and bolts and connecting two X-
The shaft nut supports it.
Now, take two 500mm shafts, slide a linear bearing on each shaft, place a shaft bracket at each end of each shaft, and install it on the sculptor. Mount the Y-
Y of shaft nut-
The shaft moving part with nuts and bolts, connect it to the linear bearing with some bolts and connect the three bars and the stepping motor.
Install this whole thing to the other half of the engraver and connect the three poles and the stepping motor.
Now you should be something that looks like 11 photos.
I also installed a piece of wood in the electronic chassis to install the step drive.
After I put in the electronics, I have attached the top of the electronics case, the control panel and the worksheet, or you can put them on your sculptor and enjoy your work and the magnificent design:)
The only thing missing right now is the electronics and the wires may look messy, but if you take the time to lay a wire at a time, it\'s a quick and easy step.
First, connect all boards, power supplies, relays, lasers, and control buttons (
Start, pause and stop)
Like the fourth, the fifth, the sixth.
Also, I used two fans on an old computer that were necessary for the cooling of the laser and the stepping motor drive.
Secondly, set up the step drive as I did in the third picture, these switches let the drive know what your motor current is and if you have used the microstep.
The driver divides each step into multiple steps (
For example, the motor needs to turn four microsteps to have the effect of a normal step).
I decided not to use microstep because my sculptor 0 is a normal step. 0075mm.
Now, just print the first image, put a wire at a time, and indicate on the printed image which wires you have done and which ones are not.
This photo uses other stepping motor drives because the program I made with it does not support the drives I use.
Laser drive: I really don\'t know what drive I need to drive the laser with, so I took a look at the instructures and I saw that famous mods, another author on instructures, just used ebay\'s LED driver in his Instructure.
Stepping Motor driver: the stepping motor driver says something strange, such, EN+, CW-, CW+, CLK-and CLK+.
You can take EN-, CW-and CLK-
Wire them to GND-
Pin on Arduino.
EN can go to the No. 8 needle.
The direction is CW stans and the step pulse is CLK.
Limit switches: when one of the axes pushes one of them, these switches ensure that the engraver stops working, which is to prevent damage to the engraver in case of problems.
These switches are also used to find the location of the sculptor.
Now there\'s only software left. let\'s start!
Download the latest version of grbl to this website (grbl-master)
This is the software used by our laser sculptor.
You will also need to download the latest version of the arduino IDE.
Search for configuration after downloading grbl.
The h file in the folder named \"grbl\" and replace the file with the one I uploaded somewhere in this step.
Open the arduino IDE once it\'s done and go to \"sketch \"-
> Import Library \"-
> Add library and select a folder named grbl.
Select import library again and click grbl \".
Now you should be the first photo.
Now press ctrl shift M in arduino IDE.
This is a string.
Monitor, set the baud rate (
Bottom right of the window)to 115200.
You should see the second picture now.
Press \"$\" and click enter and you will see some settings to change them to: $0 = 10 (
Step pulse (usec)$1=25 (
Step idle delay (msec)$2=0 (
Reverse shield of stepping Port: 00000000)$3=0 (
Dir Port reverse mask: 00000000)$4=0 (
Steps to convert, Boolean)$5=0 (
Limit pin conversion, Boolean)$6=0 (
Probe pin reversal (bool)$10=3 (
Status report Shield: 00000011)$11=0. 010 (
Connection deviation (mm)$12=0. 002 (
Arc tolerance (mm)$13=0 (
Report inch, Boolean)$20=1 (
Soft boundaries, Boolean)$21=0 (
Hard limit, Boolean)$22=1 (
Cycle of automatic search, Boolean)$23=3 (
Looking for dir reverse mask: 00000011)$24=50. 000 (
Feeding (mm/min)$25=500. 000 (
Finding (mm/min)$26=244 (
(Msec)$27=3. 000 (homing pull-off, mm)$100=133. 333 (x, step/mm)$101=133. 333 (y, step/mm)$102=250. 000 (z, step/mm)$110=500. 000 (
X max rate (mm/min)$111=500. 000 (
Maximum rate (mm/min)$112=500. 000 (
Maximum rate (mm/min)$120=10. 000 (
X accel, mm/sec ^ 2)$121=10. 000 (
Y accel, mm/sec ^ 2)$122=10. 000 (
Z accel, mm/sec ^ 2)$130=500. 000 (
X max travel, mm)$131=400. 000 (
Max Travel, mm)$132=200. 000 (
Max Travel, mm)
Upload to your arduino.
In order for our laser sculptor to carve something, we need to send it some code called gcode.
To create this code, we will use a program called Inkscape and its extension.
To download inkscape, just go to this page and download stable version 0. 48. 5 (! )
, This is very important because the extension does not work in later versions.
Now, download the files I uploaded at this step and put them in the folder C: \\ Program files (x86)
\\ Inkscape \\ share \\ extensions.
Now you can do some gcode.
* Note: Before making a file or starting engraving, please note that the sculptor will not color the picture and you will only see the lines. 1.
To create gcode, first find a line chart in google images and then copy it in inkscape. 2.
Select image and go to path-
> Track the bitmap, click OK.
Now the image looks clearer (see picture3).
Delete the old image. 3.
How big it takes to choose it. 4.
Go to tab extension-
> Laser engraving-> Laser.
Set the speed, name and location of the file and click OK \".
Now all you need to do is send the files to your sculptor.
To do this, you need to download GRBL controller 3.
0 Update: I have seen GRBL controller 3.
0 gives an error when you try to download it, so I found a good alternative for it, called gcodesender.
Before you send the file to your sculptor, you need to have the sculptor find his zero position.
Click to unlock the grbl and send $ h to the sculptor, then click on the zero position.
Before you engrave now, you need to focus the laser, to do this, just click on the \"spindle\", take a small screwdriver and turn the left pan so that the laser is only 0. 1 amps.
Now you can turn the lens until the laser is focused on a small point.
Turn the pot back to 1-1. 6 amps.
Don\'t give it more than two amps or you will damage the laser! ! *experience :)
Now you can select the file and start engraving.
If you notice that the engraved picture is upside down, just switch the wires of one coil of the stepping motor. Congrats!
You are now a laser sculptor yourself!
The only thing left is carving something, and here you have some examples I made with my sculptor.
If you do this project, don\'t forget to send me a photo, I would love to see your sand if you have any questions, you can email me or leave a message at any time.
Thank you for reading my guidance! ! ; )
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