"Cheap" 20W Fiber Laser With Outstanding Performance! ComMarker B4 Laser Engraver REVIEW

Just a few years ago, a fiber laser engraver was something that cost tens of thousands of dollars and only just big companies could afford these wonderful machines. But today, thanks to the advancement of laser technology, even a small home business or a hobbyist can own one of these laser marking tools.
You can get it here:
commarker.com/product/b4-lase...
Use coupon code "jtmakesit" for 2% off!
Or get it here:
amzn.to/3ZsPDXb
Aliexpress: bit.ly/3PRatNW
Full written review: hobbylasercutters.com/commark...
A fiber laser engraving machine excels at engraving metal and plastics. It is precise and 100 times faster than conventional laser engravers. I have thoroughly tested the new and very affordable ComMarker B4 20W fiber laser engraver which delivers a lot of performance for its money with its motorized focusing Z-axis, live engraving preview, two different lenses, a rotary system, a foot pedal and handheld capability. It can also engrave in color!
amzn.to/3ZsPDXb
(I get a small commission which supports my channel at no extra cost to you. This helps me to make reviews like this for you free of charge!)
Kittl graphic design tool: www.kittl.com/
0:00 Intro
0:52 What is in the box of the Commarker B4 Fiber laser marker
1:10 How to focus the machine
1:32 Supported software
1:51 This laser is incredibly fast!
2:35 Measuring the focus spot size
3:33 Using the bigger 200mm lens
4:18 Engraving a large photo with amazing details in just minutes!
4:46 Testing different frequency settings on stainless steel
5:47 How to get black engravings on stainless steel
6:12 Some tests on aluminum
6:38 Cleaning dirty coins with this fiber laser
6:55 PERFECTLY removing RUST with lightning fast speeds
7:21 Using Kittl for making cool vector designs I used on anodized aluminum dog tags
8:39 Geometric correction for cylindrical objects
9:20 How to EARN a TON of MONEY with this laser
9:50 Variable text and auto increment function for serial production
10:24 Engraving on black acrylic is AMAZING
10:50 The high quality rotary chuck for cylinder engravings
11:21 How to use rotary chuck for engraving both sides of a metal ring
12:31 Removing coatings from stainless steel cups
13:08 COLOR Engravings on titanium
13:55 Etching a very deep engraving in brass
Check my other review videos:
Enjoywood M4 - budget alternative to fiber lasers: • Enjoywood M4 - a Low B...
Best CO2 laser: • Gweike Cloud Pro 50W C...
Best 20W diode laser: • Sculpfun S30 Pro Max v...
Diode infrared laser for metal: • GAME CHANGER! This New...
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#commarker #fiberlaser #bestlaserengraver

[@JTMakesIt]

You can get it here: commarker.com/product/b4-laser-engraver/?ref=iNBVv9XmXs_p18 Use coupon code "jtmakesit" for 2% off! Or get it here: amzn.to/3ZsPDXb and Aliexpress: bit.ly/3PRatNW Full written review: hobbylasercutters.com/commarker-b4/ (I get a small commission which supports my channel at no extra cost to you. This helps me to make reviews like this for you free of charge!)

[@balusamys3515]

Thank you so much for your work!

[@balusamys3515]

Learned many things!

[@petergebert4817]

Link is not working

[@JTMakesIt]

@@petergebert4817 I checked and it works. Try again

[@TajulIslam-ei7gd]

1.8-2.2k is not cheap? Might as well buy a Lazer cutter. Although the rotary spindle was cool

[@BadgerLaser]

the annelead titanium technique is very cool - i have messed about with laser engraving for years but thats a new one to me!

[@JTMakesIt]

Awesome!

[@Mariosyian4ever]

Excellent video as usual! Love the in-depth reviews!!

[@JTMakesIt]

Much appreciated!

[@TMS5100]

@10:44 It works on almost any colored acrylic because the opaque dye allows the plastic to absorb the energy from the 1064nm laser and it foams the surface, making it white effect. If you overdo it and "cook" the engraving with too much power, it turns brown. Clear acrylic is transparent to 1064nm so no energy can get absorbed into the plastic. You need some dye in it to work. White HIPS sheets also works, but in this case the laser is cooking the styrene in the plastic and causing it to discolor and turn dark grey. Basic rule of thumb for 1064nm is, if you can see through the material then the laser won't be able to scratch it. This is why 1064nm fiber laser can't touch glass, but CO2 laser at 10600nm engraves it easily because glass is almost totally opaque to 10600nm.

[@JTMakesIt]

Thanks for all this great information! 👍

[@Konrad_Adenauer]

What laser do I need for engraving the surface of clear PET? As I understand a fiber laser will not work?

[@user-kf5ff6lo5c]

Never thought i'd get visually rick-rolled watching a laser vid haha Nice machine that is though, frighteningly quick!

[@partytempo]

Really neat engraver. Almost seems like a pro-sumer and/or light commercial grade

[@JTMakesIt]

This one can really fit a small engraving business. Its fast and you can make a lot of money in short amount of time

[@DENNCUSTOM1]

Great video do you have a setting for silicone on lightburn I just got the machine ! I plan to do apple watch bands silicone ones

[@JTMakesIt]

Best is to try for yourself an see what works the best.

[@LaserRanger15]

Can't really mark clear acrylic (or anything clear except for clear polycarbonate) because it is almost 100% transmissive to that 1060nm to 1064nm wavelength. You did an excellent job reviewing this and at $2K is a bargain for a low production shop or a hobbyist. I assume it is Chinese, so I always worry about support and service though. Do you have a feel for that?

[@JTMakesIt]

They are Chinese, but anything non-Chinese will cost at least 3 times more. They are not a new company, they already have a lot of models out, I think they should have a functioning support channel.

[@PickUpGaming]

Isn't jpts stuff like 800-1200 seems better

[@RaicoRosenberg]

Thank you for a really in-depth video! Subscribed! Could you tell me the name of the font used from about 03:00 minute mark? Thank you🙏🏼

[@JTMakesIt]

Thanks! These are shx single line fonts which you install directly into Lightburn. Google Lightburn shx fonts to get them.

[@RaicoRosenberg]

@@JTMakesIt wow thank you so much!! Can you tell me the name of the font? I don’t have lightburn yet and would like to try that particular font. Thank you

[@JTMakesIt]

@@RaicoRosenberg It is called gbeitc or something similar

[@TheJacklwilliams]

Great product in so many ways. I was blown away when I launched the Amazon link and saw the price. I can damn near get a CO2 laser for that price and certainly some of the great LED lasers. Again, great product but too expensive for it’s limitations in my book.

[@TheLumberJacked]

Actually, for a MOPA Fibre laser that price is incredible. The 20w and 30w are very close in price too. Pretty wild.

[@TheJacklwilliams]

@@TheLumberJacked I’ll take your word on that. I know little about them. Ive wanted one for awhile and have only really researched C02 lasers.

[@user-rx3ic4vw8g]

im curious, the video mentions pre stored art work. is it possible to laser print any graphic? could i for instance down load to this a spartan helmet ? then print it off,, or will it only do graphics that come with it? thanks in advance for any insight you can offer

[@JTMakesIt]

You can print any graphic you get from the internet. Vector images are the best, but it can also engrave photos and other images

[@tihzho]

With titanium the oxide layer is not colored at all. What produces the color is light refraction / reflecting through the titanium dioxide layer that causes a light wave interference which is seen as a color. When you look at straight on the oxide layer is whitish however when viewed at an a certain angle you see iridescent colors. The different colors produced are from the thickness of the titanium dioxide coating. 😀

[@JTMakesIt]

You are correct. But I also mentioned that this is due to oxide layer forming

[@lybce]

Amazing !! Have Do you try engrave on 3d PETG or ABS printed parts ???

[@JTMakesIt]

It works great on ABS, havent tried PETG, but I assume it works too

[@ram5213]

@@JTMakesIt Would it work on a light gray matte PLA too?

[@JTMakesIt]

@@ram5213 yes it works well on PLA

[@josefmud161]

Hello, what are cutting (max 10mm) and engraving capabilities for wood/balsa/plywood? Do I need different type of laser or this machine is universal? Thanks!

[@JTMakesIt]

Hi fiber lasers don't work on wood at all. For cutting wood, check my other videos

[@deathgaming4449]

I want to learn how to make laser on the wood with details. Is it can be used for laser Pecker 2 . Please guide me

[@JTMakesIt]

Fiber lasers are not good for wood engraving. Check my other videos for wood engraving machines

[@zgi5950]

JT, do you think this laser is suitable to do deep engraving on steel as well, multiple passes of course. I would intend to use it to do deep logo engraving on stainless and carbon steel knife blades. Thanks GZ

[@JTMakesIt]

Yes it can. In the video I engraved in very deeply in brass, but it can do steel too.

[@zgi5950]

@@JTMakesIt Much Appreciated, yes, i have seen the brass, but was not sure how the times change with the different materials. If its unreasonably longer than i should go uo w power, but this just looks ebough to me. Much appreciated for the quick reply!

[@toniusv5980]

Can someone give me link to their webshop? I'm interested in buying this product! Awesome review of this product btw

[@JTMakesIt]

Thanks! Check the video description for the link.

[@trick29420]

Would this engrave golf club heads which are typically forged steel?... What about different finishes like chrome, nickel, or black oxide?

[@JTMakesIt]

Yes it can engrave all types of metals.

[@Mohamedayman-ud9pd]

And again which one would be the best for precise laser engraving for metal cards? This is the only option that I need so any other option would be just extra and I would like to start laser engraving on metal cards

[@JTMakesIt]

This one is very good. I plan to test more fiber lasers in the future

[@Mohamedayman-ud9pd]

Hope you do well and will consider getting it, but are considering a type over another just for the purpose of laser engraving over metal cards?

[@JTMakesIt]

@@Mohamedayman-ud9pd Fiber laser like Commarker is the best type of laser for engraving metal cards. You will learn more about this in this video: kzbin.info/www/bejne/e2a3fqejmtVseNE

[@LazerBeeLyonsGa]

Where are you getting sheets of titanium? Are they very expensive?

[@JTMakesIt]

I get them on Aliexpress: s.click.aliexpress.com/e/_DExTunZ They are reasonably priced.

[@Personalized-engraved-gifts]

How is the support for the machine if you have questions or run into problems?

[@JTMakesIt]

They have a website with contact information.

[@ajbahe]

Is this really the 20W version? I'm looking for deep engraves on Brass, Copper.

[@JTMakesIt]

It is a true 20W fiber laser. In the video you can see that I did a very deep engraving on brass

[@NRiggiKnives]

Where did you get the hold down pins for material? Or did you make them?

[@JTMakesIt]

Can you point to the part in the video where pins can be seen?

[@NRiggiKnives]

@@JTMakesIt 2:45 time stamp

[@NRiggiKnives]

just realized when re- watching that these are magnets?

[@iordanradev4239]

Hello, I have a question. Is this laser engraver working on silver and gold?

[@JTMakesIt]

Yes it should do fine

[@thanatosor]

Is this the same to Diaotu B5 ? Same fiber laser Same 110x110mm working area

[@JTMakesIt]

I am not familiar with the Diaotu

[@yorusama5011]

I was so impressed! Clicked on the link and saw that said $300k and I'm like, oh....this must be a Lamborghini. I can't get this anytime. But the product is so beautiful!!! EDIT: Didn't realize it was an IndieGoGo, that $300k was the backing. The cost is under $3k. That makes more sense. It's still out of my range but not forever.

[@JTMakesIt]

Someday you can do it!

[@yorusama5011]

@@JTMakesIt Thanks! I think so too. Right now, I'm working on getting a beginner laser in the $300 range. I know I'll need the air assist, honeycomb, and enclosure with air filter too. So maybe those things come later.

[@JTMakesIt]

@@yorusama5011 check my other videos, I have reviewed some beginner lasers too. And also tested some accessories

[@endibobey]

Can it (20W version) cut gold plates as name tag jewellery without any warping or creating any problem.

[@JTMakesIt]

If they are very thin, you can slowly cut them with many fast passes without warping. but if you want to cut thicker you need more power

[@endibobey]

@@JTMakesIt How thin is very thin in mm?

[@JTMakesIt]

@@endibobey I would say up to 0.5mm

[@endibobey]

@@JTMakesIt Thank you. What is the price of this 20W version? Also, what is a suitable power to cut up to 2 mm gold plate? and do you have such version as well?

[@JTMakesIt]

@@endibobey you will find a link to the machine in the video description. For 2mm you would need at least 60W, but still many passes will be needed. I plan to test more powerful machine soon

[@lemchingshak8114]

Is it possible to make aluminium injection moulds with this?

[@JTMakesIt]

You cant make very deep 3D engravings

[@chrissmith841]

this is out of my price range currently. im looking for a metal engraver for zippo lighters ,pens knifes etc. any recommendations. thank you

[@JTMakesIt]

This one is more affordable. kzbin.info/www/bejne/g5vJZ353Zqhsfsk But lasers for metal are not going to be very cheap

[@chrissmith841]

@@JTMakesIt Thanks. yes i was looking at that one. would you recommend me save my money and save up a little more for the commarker?

[@JTMakesIt]

@@chrissmith841 Commarker is approximately 10x more powerful. it can remove more material and make engravings deeper and you can engrave faster. Also you can adjust frequency setting with commarker, which helps to get different finishes. You can watch my newest video, where I also talk about the differences between these two machines.

[@efraingonzalez4642]

Where can I get the grids you are showing ? I wanted to replicate them on my B5 engraver.

[@JTMakesIt]

I didn't the files for this. You can easily make them on your own with the fill parameter

[@efraingonzalez4642]

@@JTMakesIt thanks, that's going to take a while LOL

[@JTMakesIt]

@@efraingonzalez4642 you just draw a square and set the fill density to the required interval spacing. Not much work to do

[@playvision5667]

can you engrave brand name on black plastic casing on electronic products?

[@JTMakesIt]

Yes, although the contrast of the engraving depends on the type of plastic.

[@playvision5667]

@@JTMakesIt When you have time can you make a video of etchings on black plastic? I'm planning to buy this laser model and want to see how it looks. And does the MOPA model engrave color on plastic or just metal?

[@JTMakesIt]

@@playvision5667 I will make it sometime in the future. I think I engraved some plastics in my review of the Enjoywood M4 too. It should behave similarly. The best engraver for plastic would be the Commarkers UV laser. I plan to test it soon

[@playvision5667]

@@JTMakesIt UV laser is very expensive, I think I would stick to this model at most. I originally wanted to buy the M4 but thought this B4 model would bring out the engraving better. I'm only interested in printing my brand on black plastic on my products, I'm not interested in engraving other materials.

[@JTMakesIt]

@@playvision5667 it definitely can engrave plastics, it is just a matter of what contrast can be achieved. Fiber laser offers a lot of settings and with some tweaking a lot of different results can be made. Look around the article about fiber lasers and plastics so you get a feel what can they do

[@allinclusive5762]

is it possible to do PCB's with it?

[@JTMakesIt]

You could use it for resist removal prior etching for sure. Some use fiber lasers also for directly removing copper, but I think it is not as easy, but it can be done

[@iamD2]

This whitening also happens on Polyoxymethylene (POM). Grtz

[@JTMakesIt]

Thanks for this info!

[@iamD2]

@@JTMakesIt i use a industrial co2 laser at my company, and to check the pusle widte and overlap etc. we use a actual microscope and check for these properties. Its actually very cool to see it from close up, you can play with the powers and actually see how the burned white have different forms from the laserbeams power if you fill under 60 degrees and 40 or 90 90. The results r quite cool.

[@JTMakesIt]

@@iamD2 Wow that is some valuable info. I'm going to try it out, I actually have a microscope at hand! Thanks!

[@neoniellbuduan6817]

Hello so this one can carve copper for pcb?

[@JTMakesIt]

It can engrave copper. But I haven't tested it for directly removing copper instead of etching. In theory it could work. But it can be used to make an etching mask for sure. (paint the PCB in some paint, then mark the design with this machine and then etch in acid and later remove the remaining paint.)

[@AckzaTV]

engrave iun COLOR?> HOW layers of paint?>?>??

[@PippoLoVe]

Can I engrave with this machine on gold and silver?

[@JTMakesIt]

Yes. Easily!

[@TheFutureisTheFuture]

can you think of any way to recover that gold and silver? Vaporizing gold at least would be a shame to let that all just be swept away, and expensive...@@JTMakesIt

[@yantschek4989]

Can you engrave jewelry like gold or silver

[@JTMakesIt]

Yes without issues

[@LalitKumar-fe7bl]

Can we design PCB using gerber/DXF file?

[@JTMakesIt]

Most PCB design programs support exporting output files that could be read by the Lightburn.

[@rasaabdalrahman741]

Hey does work to engrave stone?

[@JTMakesIt]

Yes it can

[@thanatosor]

pretty nice for $2k

[@carloscarbajal1399]

Can you engrave leather and wood with no problems?

[@JTMakesIt]

Leather can be engraved, but wood can't

[@TMS5100]

@@JTMakesIt you can engrave wood if you soak it with baking soda+water mix. still not as good as co2 laser though.

[@stefan-bayer]

Has anyone succesfully lasered magnets with an fibre laser? If so were they more susceptible to breaks? Would a CO2 laser be fine as well with 1064 nm?

[@JTMakesIt]

I think if the engraving is not deep it will not affect the mechanical stability of the magnet. I don't think CO2 laser can engrave on magnets though. Maybe if painting the surface black first

[@stefan-bayer]

@@JTMakesIt Okay thanks a lot! I think then your laser model looks good.

[@wesftrgyuhdsakoiju]

欲しい

[@mtz3843]

how does this work on wood?

[@JTMakesIt]

It does not work on wood.

[@mariamsaied6156]

Can it cut metal sheets?

[@JTMakesIt]

Very thin ones with many passes. Up to 0.3mm thick approximately

[@rickh633]

can it mark carbide

[@JTMakesIt]

I think it would work

[@FC-eo9tn]

.....have you bought the B4 "Deluxe" Version for 2400 EUR???? What is the difference to the 400 EUR version?

[@JTMakesIt]

I have the master package with one rotary tool. With deluxe package you get three versions of rotary tools

[@masoodali6758]

Kindly tell me the price

[@JTMakesIt]

amzn.to/3ZsPDXb

[@stephensharma3259]

this is the 2d or 3d?

[@JTMakesIt]

2D. Check this one for 3D engravings: kzbin.info/www/bejne/iXOZh3qsgatjr9k

[@rgdubb5]

how many cm do i do for the 200mm lens. looks like you got 34

[@JTMakesIt]

It should say it in the manual. each lens is individually calibrated and exact value is hand written in the manual.

[@rgdubb5]

@@JTMakesIt i actually got it from the manufacturer. only my 110 was hand written the 200mm was blank

[@JTMakesIt]

@@rgdubb5 You can also figure it out by yourself. Let it continuously engrave a small area (a lot of passes for filling up a ~2cm rectangle with 50% power and 500-1000mm/s ) and while it is engraving, manually rotate the focusing crank and keep adjusting the focus. The point where the engraving noise is the loudest is the perfect focus. Then measure with a ruler and you have your number.

[@stephengiacobozzi7785]

can you make circuit board

[@JTMakesIt]

Yes

[@Graham_Wideman]

If you're imagining using the laser to blast off copper, no you can't. You could use the laser to remove resist material that you previously applied, and then chemically etch the copper. But for that purpose you don't need a laser this powerful or expensive.

[@JTMakesIt]

@@Graham_Wideman Enjoywood M4 that I tested recently would be good enough for this you can check the video

[@snotode543]

Could you try color engrave a 3d printed black PETG?

[@JTMakesIt]

I don't have any at hand, sorry

[@peterxyz3541]

How much?

[@JTMakesIt]

Link in description

[@nareshmehndiratta]

Cost ?

[@JTMakesIt]

Check the link in description

[@yourpcmd]

$2000, and they say cheap.

[@yantschek4989]

2000 is really cheap for a laser machine

[@LaserRanger15]

Little bit of a lie on their site. It is not the smallest marker out there, but size doesn't mean anything when there are several not much bigger than a shoe box. This does have a lot of capabilities. if I was going to do a side business, I'd give this a hard look.

[@JTMakesIt]

the smaller ones (Atomstack M4) are not a true fiber laser. i am testing this right now and it is way less powerful.

[@pcmicrodude]

Not as enjoyable to watch while listening to a robotic voice.

[@JTMakesIt]

Working on this issue :)

[@andyb7754]

Thanks, but not for $2000. Interesting video.

[@JTMakesIt]

Compared to other fiber lasers its pretty cheap :) If you do some projects for other people you can pay it off pretty quickly. People are crazy for custom dog tags and such.

[@cplcabs]

Pretty cool, but it is an indegogo project? I think I will pass, Indegogo is just a con. This also looks very much like the Atomstack.

[@alexs.5675]

Con? I've bought many things from there and never had an issue.

[@cplcabs]

@@alexs.5675 yeah, I have bought a few things from there and kickstarter and they never materialised. This is why they state that its not a shop. However, when they creators just do a runner with all the money such as the Rook project saying they will give a refund, but actually don't. Fyre, same thing as Rook, Jiffy, same thing. Ping which is supposed to be a GPS tracker but actually isn't and it took a lot to actually get the product when many have not. Just to mention a few. Basically, a lot of people use these things to scam people and as such are not trustworthy.

[@guyb7995]

Agreed in part. I am not saying this is a con, but there is basically no consumer protection from sites like indegogo so I would wait until it is available for purchase in a more standard way, where you can perform a chargeback if your order never arrives etc

[@cplcabs]

@@guyb7995 this is a lesson I have learnt if I see something on indegogo or kickstarter. The cost maybe a little cheaper, but the likelyhood is that the creator will just take the money and run so best not risk it.

[@JTMakesIt]

A lot of companies do a first run as a crowdfunding campaign as a form of marketing. Usually, the goal is set very low because they already have a functioning product. Commaprker is a company which already has some models of fiber lasers selling right now, when the campaign ends, they will add it to their standard offer list. But you will need to wait a bit and then, the price will most probably be higher.

[@dravenravenloft3257]

The cheapest one I can find of this exact laser with rotary Chuck and so on. It's about $6,000... Not really very cheap! Definitely not something for hobbyist! If you're looking to make money and you want to go and take out a loan for this. You might be able to pull that off. But you start off by saying it's cheap and it's definitely not that..

[@JTMakesIt]

It is around 2.5k$ on the indiegogo campaign in my video description.

[@paulmilne3038]

Looks like a good way to qualify for a guide dog, very unsafe and you can hold it in your hand! Unbelievable how dangerous is this, wow.

[@JTMakesIt]

I think no one will ever use this handheld. It is very unpractical. Handheld use is more of a marketing gimmick. But desktop operation is reasonably safe with good safety goggles. It is no different to any other fiber laser.

[@TrigTrig]

Cool product but I don't trust that I'll actually get something from an indie gogo campaign lmao

[@JTMakesIt]

Then you need to wait a bit for it to start selling elsewhere. When it does I will update the link

[@hermanhasan6773]

Impressive ,, Then see the price, 😵😱😂😂😂,, look around again find another one, it's out off my budget

[@JTMakesIt]

Check my newest video for a cheaper option :)

[@GNM-TO-SAFETY]

Cheap maybe for you ;-D

[@JTMakesIt]

No. Cheap for a fiber laser. 20 to 30 years ago this would cost 10 to 50 times more.

[@gthumbus]

" cheap" lol this is like when you go to mexico and they say "only five dollars" almost free. you and i and most of the rest of the world has a different idea of "cheap" nice videos tho.

[@JTMakesIt]

It is cheap for a fiber laser. These things did cost tens of thousands of dollars just a good decade ago. :)

[@gthumbus]

@@JTMakesIt i understand that and agree but there are others around the same price and cheaper than this one. but anything in this price range is still not "cheap" might be cheaper than some but still not what most hobbyist would call cheap was my point. that was all.

[@longshotin05]

Don't like the ai voice

[@longshotin05]

Love the video though