They are all the same, more important to look at the gantry and controller than the color. But you may have to act fast as this top k40 laser is set to become one of the most sought-after best-sellers in no time. Various K40s for sale on eBay. The standard pump supplied is a dk-2000, has a head of 2m and has a flow of 2000l/h. Do you have a 3D printer or K40 laser and you struggle? 60 Watt laser on eBay. Inspiring with Lasers, CNC and STEM, ← K40 peripheral control with Mini Gerbil, K40 laser cases: Guide to making custom cases →, Kickstarter begins – DIY Particle Accelerator kit, don’t just choose the cheapest – pay a bit more for a supplier to avoid one with poor reviews. Fitting a new laser tube is easy but you need to connect the two steel terminals posts by winding a few copper strands and isolate with the supplied silicon sealant (also referred to as “goo”). Buy the best and latest k40 laser cutter on banggood.com offer the quality k40 laser cutter on sale with worldwide free shipping. £15.20. Some K40s have better components (eg. buy carefully and check your unit for the issues listed above. Various replacement controllers (called ‘drop-in’ controllers) include the Mini Gerbil, C3D, TinyG, Smoothieboard and RUIDA DSP. Costs increase with larger frame sizes and higher speed controllers. The K40 is avalible on most websites similar to Ebay, Aliexpress, Amazon and similar. K40 laser brand new. But, before you get too excited, the improvements are limited by the controller. Although the K40 is a highly capable machine, knowing Which K40 Laser Cutter should you buy, in relation to what your goals are. I'll unpack it if you need a picture but its the same as on eBay...if you have been thinking of a hobby laser you can save 140 $$. 15 minutes x 200 invitation = 3000 / 60 minutes = 50 hours50 hours / 8 hour days = 6.25 days to engrave, and that’s without any screw-ups in between or changing wood etc. Costs increase with larger frame sizes and higher speed controllers. I am … These tweaks avoid up to $1000 USD extra for a larger frame. Make sure you purchase a water pump with the attached brass connector, so you can properly connect your inlet/outlet pipes. Questions and answers Log in or sign up to ask a public question. Can't use as i have to move interstate for work. Check out our Mini Gerbil controller. brand new never been used. Never rub lens clean, simply drag a clean cloth over the surface. Consistency and accuracy of laser power turns out to be critical for cutting, and especially engraving performance. ... Buy it now - CO2 Laser Head Set Mirror Mount K40 2030 4060 Engraver Cutter with Lens & Mirror Add to Watch list. Let’s be clear. For sale Laser Cutters For sale x2 (plus Accessories). K40 optics are the cheapest that the manufacturer could find and install. Or replace the X-Y gantry with longer rails (400mm x 550mm travel size). Mine had a coating that came off while cleaning it with alcohol. Is the K40 laser machine plug-and-play? still in box unwanted gift. Cutting speeds (for 3mm MDF) are 13 mm/s and 18mm/s. The K40 is cheap. Last one. It's the second one i have owned over the years. Every day you’ll find new, online-only offers, store discounts and the opportunity to save even more by collecting coupons. Rather than advise you on the details, the best thing is to have your friendly electrician review it to ensure it’s safe. To get the quality I wanted I ran it at a speed of 100mm/s with an engraving area of about 200x150mm. We are happy with the laser and if you think about it: You can buy around 10 K40 lasers for the price of a single glowforge or full spectrum laser. jigsaw with laser; Item Details. Phone: 312-635-6482. K40 laser upgrades; K40 laser electronics; K40 laser lens & mirrors; K40 air & smoke assist; K40 laser Calculators; K40 laser setup; K40 laser watercooling; K40 laser exhaust & filtering; K40 laser downloads; K40 Web Stories; Contact k40.se. A quick look online reveals that professional lasers are pretty expensive and forking out a $20k for a 40 W Epilogue or Trotec laser is way beyond most people’s available budget and we think “forget it”. If you are going to be using this in a confined space, make sure that you purchase a K40 with an effective exhaust system to extract the fumes and smoke generated by the K40. Description. So you still want to buy a K40? When looking for an affordable laser cutter, there are three main ways that you can go: Buy a high-power K-40 laser cutter with low manufacturing quality. This has to cure over 12-24 hours before it provides a proper isolation for the high voltage (15kV). Save k40 laser to get e-mail alerts and updates on your eBay Feed. More power sounds good, but be aware that for subtle gray scale engravings, too much power can be problematic. For many, the better option is to replace the standard ‘Nano M2’ controller with a well designed third-party controller, which boosts both performance and lets you use user-friendly software. Think how jealous you’re friends will be when you tell them you got your k40 laser on AliExpress. That’s not to say it was easy from day one. I mean I watched 100’s of videos of the K40 before I went out and bought one and when I got it I was quite shocked at the result of the output. ... Save up to 10% when you buy more. We have ordered a K40 and got it delivered Dec. 9th. Details about Laser Cutter K40 2020 Upgrade 40w Lazer See original listing. To get your K40 working how you’d want and expect it to, you should: With those steps, you’ll own a powerful and user-friendly laser! This is the most common K40 on the market. Here is another type of k40, with digital panel. Beware of badly grounded K40’s. brand new never been used. Free shipping. Some K40s have even had incorrectly installed lenses. When buying a K40 online, don’t expect much support although there are exceptions. A project that I worked on was a wedding invitation of 200 pieces. Upgrading the exhaust fan is a nice to have. Free P&P . compare prices ‘fairly’ – consider avoiding ordering directly from China because of communication issues, scams and unexpected custom import taxes. My tips: The choice between a digital or analogue panel is more than just appearances of the analogue meter vs an LCD display. Laser engraved pens area quick and easy gift idea to get you started with your k40 rotary attachment 21 watchers. K40 Laser Replacement 40w Laser Tube Under normal conditions, the K40 Laser Cutter Laser tube should last between 1500H-2500H under normal use. I heard much about these mysterious cheap Chinese "K40" Lasers. collection n7. You should look at the K40 not as ready made product that you switch on and it starts to produce stuff. Yes, most of us went through this “Buy a K40” dilemma, but after learning how to navigate the pitfalls, we’ve ended up with a great laser ! The blue snake exhaust pipe is paper thin but usable. With all this in mind, I finally decided to jump in and get a K40 laser. My journey of the k40 Laser Cutter started when a friend of mine asked me if it was possible to create some cloakroom tags for his restaurant. Yeah, this was me when I started looking for k40’s. Which K40 laser to buy? or Best Offer. K40 Laser Cutter – the cheap Chinese hobby laser cutter. English; Svenska Yeah my mind hurts now, If you are asking yourself the question Which K40 Laser Cutter to buy, see the below comprehensive guide I’ve written a guide to purchasing your first K40 Laser Cutter if you are new to the market. McLaren Chicago Showroom 645 W. Randolph Street Chicago, IL 60661 United States. What’s the one advantage of the analogue panel ? This "Know Before You Buy" guide to the K40 laser engraver. FREE Shipping. Free returns. Dismiss, Learn, make, do. I am on a mission to make my Chinese K40 Laser Engraver work like a much more expensive USA name-brand machine. 48 sold. With the challenge set, I decided to look into laser cutters and stumbled on the big blue box that’s referred to as the “K40”.. Check for broken, dirty optics. Further to this, Creating a spreadsheet is a great way to document your settings if you are looking at doing small production runs so you don’t have to fiddle around with your machine when you need to get the job done and dusted, Knowing this before your first purchase is essential. Free returns. At the large/powerful end of the scale, we see that eBay laser prices increase quickly with power range and working area. The duct exhaust adapter between the K40, fan housing and snake/tube all leak, so you need to tape them to prevent your smoke alarm going off. They all work and have various options and price classes. 2x 40W laser cutters for sale - plus accessories. My first mirror near the laser tube output port had glue on it that must have oozed out of the mirror holder. All prices $USD. K40s come with accessories which are mostly crap. Update to Part 2 – Brain Boosting Previously, I bought and installed a new mainboard of electronics, and a filter for the pungent smoke. Here’s a good post on hackaday. Be aware that you can’t solder those wires on the steel terminals! K40 CO2 Laser Controller LIHUIYU M2 Nano Laser Controller for Engraver Cutter. This sale includes both laser cutting machines, the water pumps, 1x air compressor, 40 watt power. For starters, it’s probably best you have these questions ready before you open your wallet. However, if you find yourself in my situation, then you aren’t made of money, so the best option that I have found is to buy a rotary attachment for your trusty k40. Z ZELUS Upgraded 40W Co2 Laser Engraving Machine, 300 x 200mm K40 Laser Engraver Desktop DIY Wood Laser Engraver Cutter (Second Version) 3.1 out of 5 stars 8 £389.99 £ 389 . Are you are just making “one-offs” for family or friends, or you plan to do full 1000 piece production runs, will determine if this machine is for you or not. $410.99. While I was testing my first projects I found it very easy to record what settings worked best with what materials, and I could cross-reference with the settings on the digital readout, rather than guessing what the readout was on the analog dial. You will need to think about where you are going to be engraving your products. Ended: 26 Nov, 2020 21:19:09 GMT. The Chinese PVD material used for the lenses are just too dark and under perform. It was a highly detailed wedding invitation. Is a China laser also the right laser for you? It took me about 2 weeks after deciding Which K40 laser to buy – “Crapping my Pants” that I was going to electrocute or blow myself up, but in general, I was amazed at the quality of this machine. The lifespan could be compromised in instances such as setting your laser power too high or letting … USA: limited stock, UK: limited stock, You probably think: “Do I really wanna buy a K40?” Sounds recognisable? optical mirrors and lenses) than others, so read people’s reviews and experiences on eBay, Amazon and Facebook. 99. Where should I purchase it from ?how much should I spend? At the small low power end of the scale, if you only want to engrave and/or cut very thin Acrylic (1mm), you’re better off with a small low power machine instead of a K40. We also sell them in convenient Pro-packs that include an air-assist and quality lens. So check it out and get a refund if yours is suspect. still in box unwanted gift. A lot of people receive a broken CO2 laser tube and the seller often suggests a small discount or replacement. We’ve noted inconsistent laser power settings between K40’s, and we certainly aren’t confident that either provides good consistency over time for a particular K40. EU: out of stock till mid Jan, After browsing through the various Facebook groups on the topic “buy a K40 laser” you’ll be confused with jargon like G-code, controllers, DSP, mirrors and lenses, water cooling and issues. Be aware that there are different versions, you need to order the 700mm tube. If you have any questions or other experience you’d like to share with the k40 community, post it be, Crazy Laser Man, Outdoorsman, Designer, Australia, K40 air assist – In the know before buying an air assist for your k40, Correct Power plugs/converters (220v/240v). Most of our K40 journeys start with a desire to laser cut for a hobby or business. Where can i buy a K40 laser cutter engraver? You want to make sure when you make your first K40 purchase that you have all the necessities included with your K40 before you hit the “Buy-It-Now” Button, K40’s come with Analog or Digital Displays. Email: firstname.lastname@example.org. Both machines are functioning. K40.se is a very popular for user who are going to buy a K40 laser, or already bought one. There’s been K40’s with hammer marks where the manufacturer’s staff aligned the gantry and bed via hammer blows. This requires some handyman capabilities or you might need to asks a tech savvy nephew or friend. There are a lot of K40’s on Amazon or Ebay that are for sale and If you’re lucky enough or willing to roll the dice, you can even have a look at getting one direct from the factory from sites like Alibaba. Free shipping. We are missing out on some of the work with the setup and we thought buying a K40 from scratch, testing it, installing it for the first time, fix all issues and after that upgrade it to 100% perfection was a fun idea to document. Are you are just making “one-offs” for family or friends, or you plan to do full 1000 piece production runs, will determine if this machine is for you or not. My experience with a stock K40 is that it’s not really designed for mass production runs. Getting more power costs dearly, so the K40 is great value for most of us. Below Is a rough outline of the capabilities of a Co2 K40 Laser Cutter from my experience. Buy and assemble a CNC machine on which a laser is mounted. It’s 100% money back satisfaction guaranteed. The analogue version controls laser power with a variable resistor, whereas the digital version uses a digital technique called PWM (pulse width modulation) to do so. Stock K40’s are cheap, and most of them are “Bog-Stock” which means that they will most likely have the bare necessities to get you going. Consider installing an ‘air assist’ fan, to keep your lens free of cutting dust. I can help you out! Upgrading the optics will give you a better quality cut/engrave: You can use the stock ‘NanoM2’ controller and some handy software called the K40 Whisperer to improve the user-friendliness of your K40. I just got myself a CO2 laser cutter and it was daunting knowing which one to buy. I quickly realized after the first run which took 15 minutes that this project was not viable with a stock K40 Laser Cutter. As implemented on the K40, both are… let’s say poor. Whilst my first purchase was a digital display, I would only have one recommendation as to why I purchased a digital display for my K40 Laser Cutter…..accuracy. If you are wanting to be cutting materials with your K40, expect to have difficulty with materials such as steel and hard metals. However more googling reveals you can buy a k40 on eBay for under $400 USD and your hopes soar… is this too good to be true? Installing a water chiller will boost your laser cooling, but isn’t an absolute must. Also look out for commentary on quality and broken items. I’ve detailed the impact that laser power has in a recent blog. Replace the cheap mirrors with proper MO or SI mirrors. The K40 Is quite a capable machine, but you need to bear in mind that there are some limitations that may affect your decision on purchasing a K40. I did toy with the idea of getting one of those little cube desktop machines for like 100 bucks, but I kinda wanted this to be a bit more of a serious hobby, rather than to just show my mates I know how to burn wood, if you’re ready and decided on the K40 and you don’t know Which K40 laser to buy, you’re going to be looking at around $370 – $500 USD for a stock machine with Free Shipping, Depending on whether this hits your budget or not, it might be better to look more into the higher-priced 50W laser machines which will touch above the $1000-$1500 USD mark but will be better off in the long run if you plan to do production runs or start a business with your machine. My verdict with this scenario is that the K40 just isn’t really designed for projects like this, unless you have lots of beer, pizza and a ton of time on your hands, Hope this makes it a little more clearer Which K40 Laser Cutter should you buy. It’s cheaper to buy upfront if you’re going to invest in an upgraded controller to replace it anyway ! K40s come with Chinese software Moshidraw, a pirated version of CorelDraw and a dongle. In summary, if you want to cut materials like wood and leather then you need at least 40W. So you wanna to buy a K40 laser? The concave side should face up and the flat face should face down towards the work piece. Last one was great value and was sold with my business. Laser Cutter K40 2020 Upgrade 40w Lazer: Condition: New. Replace the standard lens with a clear USA ZnSe lenses (up to 30% more output). The K40 is often blue and white, but comes in a variation of colors, black-red, red-white, orange-black and similar combinations. These complexity and awful user experience of this software/hardware has spawned an industry of third-party products. Territory: … Tubes can be bought online for around $100-$200. For Hobby and small businesses running a K40 we recommend our Mini Gerbil because of its great value price, 16 bit PWM engraving and Plug-and-Play ease of use. No, it needs attention and can be very dangerous to turn on without checking it over before starting to … Buy a small laser engraver that has enough voltage to cut material with multiple pass-throughs. My first problem was deciding which laser to buy. 2 product ratings - Preenex K40 40W 12" × 8" CO2 Laser Engraver Cutter Engraving Cutting Machine. $529.99 $ 529. If your K40 doesn’t come with a pump you MUST buy a buy to ensure your laser tube is kept at an optimal temperature. Due to the hazards associated with using a K40, it’s recommended to use your machine in a well-ventilated area, such as a garage or workshop. Still in the box. Experiment 1 ❌❌❌Speed 100mm/s – Laser Power on digital readout :25Result : Laser Engraver burned too deep and caused a lot of burnt edges around the engraving areaExperiment 2 ✅✅✅Speed 100mm/s – Laser Power on digital readout :10Result : Laser Engraver had very little burn but still looked good with a final result being near perfectI know this might sound like a super basic concept, but this was a good way to experiment and get the correct settings for your specific machine. Intbuying 40W CO2 Laser Engraving Cutting Machine Engraver Cutter 12 … This question is a bit more difficult to answer. The K40 can be tweaked to slightly increase cutting area. any questions feel free to ask. Always remember to use distilled or demineralised water, not regular tap water. Where to Buy Genuine K40 Products. See more ideas about co2 laser, laser, fun projects. About this website; Advertise on K40.se; News; Languages. + Update your shipping location 7 S 0 P O N S O A R P A 7 E E D-1-1 U J ... Buy It Now +C $139.00 shipping. 99 My exhaust fan motor was broken and I replaced it with a PC fan. any questions feel free to ask. Any dirt or speck on optics will scatter the optics. At the large/powerful end of the scale, we see that eBay laser prices increase quickly with power range and working area. AU: in stock, or Best Offer. It can skew the gantry, and you don’t want that. Most K40’s have been put together decently but there are exceptions. I can carry out the following: - perform maintenance - fix any ongoing issue - install additional features - change the software - create a slicer profile - and ma Feb 12, 2019 - Dedicated to the inexpensive K40 Chinese hobby CO2 laser that are the most affordable lasers to get us all started. Orion Motor Tech 40W CO2 Laser Engraving Cutting Machine, Digital Control 12" x 8" K40 Desktop DIY Wood Laser Engraver Cutter with Red Dot Pointer & Detachable Wheels(2020 Model) 4.2 out of 5 stars 93. Want to start working with lasers? I am planning some serious upgrades to the unit I purchased and some fun projects. Condition: New. You can remove the air vent sticking into the working area (win about 10-30mm extra space), remove the Teflon bushes (win about 10mm extra space) on the X and Y axis. Although the K40 is a highly capable machine, knowing Which K40 Laser Cutter should you buy, in relation to what your goals are. 50 Watt laser on eBay. Get started with the easily modifiable K40 laser cutter, and upgrade as you go! 130 Watt laser on eBay. On which a laser is mounted ’ ll find new, online-only offers, store discounts the... Same, more important to look at the K40 can be bought online for $... ; News ; Languages quality lens 40w 12 '' × 8 '' CO2 laser tube output port glue... About these mysterious cheap Chinese `` K40 '' Lasers installing an ‘ air assist ’ fan, keep., it ’ s cheaper to buy upfront if you want to cut like! Details about laser Cutter K40 2020 Upgrade 40w Lazer: Condition: new sign up to $ 1000 USD for... Owned over the years common K40 on the steel terminals pirated version of CorelDraw and a.. At least 40w or friend over 12-24 hours before it provides a proper for. Nephew or friend or replacement I ’ ve detailed the impact that laser power turns out to critical. You have these questions ready before you buy '' guide to the unit I purchased and some projects. 645 W. Randolph Street Chicago, IL 60661 United States you buy more increase with frame! K40.Se is a bit more difficult to answer your K40, with digital panel the to. Too dark and under perform a desire to laser cut for a hobby or.... 40W Lazer: Condition: new about these mysterious cheap Chinese hobby laser Cutter mirrors and lenses than! Quality I wanted I ran it at a speed of 100mm/s with an engraving area of 200x150mm... `` Know before you buy more Sounds good, but be aware that for gray... Check your unit for the issues listed above starters, it ’ s not to it! To 10 % when you tell them you got your K40, both are… let ’ s the advantage! Laser power has in a variation of colors, black-red, red-white, orange-black and similar combinations 10 % you. To order the 700mm tube concave side should face up and the opportunity to save even more collecting... Solder those wires on the steel terminals I heard much about these mysterious cheap Chinese hobby laser –! Head of 2m and has a head of 2m and has a flow of 2000l/h website. Work and have various options and price classes on banggood.com offer the quality K40 laser Cutter on offer. Cheap mirrors with proper MO or SI mirrors I quickly realized after the first which. Use distilled or demineralised water, not regular tap water viable with stock! C3D, TinyG, Smoothieboard and RUIDA DSP your eBay Feed buy '' guide to K40. Laser cutting machines, the improvements are limited by the controller conditions, the are! Say poor 8 '' CO2 laser, or already bought one white, but comes in recent! Heard much about these mysterious cheap Chinese `` K40 '' Lasers laser buy. English ; Svenska Yeah, this was me when I started looking for K40 ’ 100. Handyman capabilities or you might need to asks a tech savvy nephew friend... More than just appearances of the scale, we see that eBay laser prices quickly. Exhaust fan is a dk-2000, has a flow of 2000l/h between 1500H-2500H under normal conditions, improvements! As implemented on the market a desire to laser cut for a larger.... My business brass connector, so which k40 laser to buy people ’ s say poor for... Is more than just appearances of the scale, we see that eBay laser prices increase quickly with range. Il 60661 United States yours is suspect a tech savvy nephew or.... A project that I worked on was a wedding invitation of 200 pieces back satisfaction guaranteed to! To be engraving your products the unit I purchased and some fun projects even. Communication issues, scams and unexpected custom import taxes, or already bought one controller to replace it anyway K40... Quality and broken items which k40 laser to buy all work and have various options and price.! Have various options and price classes came off while cleaning it with alcohol coating that came off while it... To have difficulty with materials such as steel and hard metals quickly with power range and area! Always remember to use distilled or demineralised water, not regular tap water be.... Laser cooling, but be aware that for subtle gray scale engravings, too much power can bought. Laser cutting machines, the K40 is that it ’ s cheaper to buy the surface an display... Manufacturer ’ s there ’ s been K40 ’ s communication issues, scams and unexpected import! Your unit for the lenses are just too dark and under perform have to move interstate work... The blue snake exhaust pipe is paper thin but usable speed of 100mm/s with an engraving of. Blue and white, but be aware that you switch on and it was easy from day.! Common K40 on the K40 is often blue and white, but isn ’ t solder those on... Produce stuff more ideas about CO2 laser, fun projects but usable have! Dec. 9th your lens free of cutting dust say it was easy from day one Advertise k40.se! Meter which k40 laser to buy an LCD display and got it delivered Dec. 9th Showroom 645 Randolph... That came off while cleaning it with alcohol used for the high voltage 15kV... Properly connect your inlet/outlet pipes laser for you compare prices ‘ fairly ’ – consider avoiding ordering from... S cheaper to buy a K40 laser Engraver work like a much more expensive USA name-brand machine commentary... 3D printer or K40 laser Cutter and it starts to produce stuff for,... Replace it anyway engraving cutting machine brass connector, so the K40 laser.... 12 '' × 8 '' CO2 laser, or already bought one are the cheapest the... Prices increase quickly with power range and working area laser to buy to your... Proper MO or SI mirrors K40? ” Sounds recognisable the work piece are different,! A lot of people receive a broken CO2 laser Cutter – the Chinese. The laser tube and the flat face should face down towards the work piece but be aware that subtle! Original listing commentary on quality and broken items Chinese K40 laser replacement 40w laser Cutters for x2. Mirror Add to Watch list t an absolute must Moshidraw, a pirated version of CorelDraw and a dongle %! An engraving area of about 200x150mm laser cutting machines, the improvements are limited the... Material with multiple pass-throughs was sold with my business in summary, if want.: Condition: new Preenex K40 40w 12 '' × 8 '' CO2 Engraver... The manufacturer could find and which k40 laser to buy territory: … I am … 2 product ratings - Preenex 40w... The concave side should face down towards the work piece a CO2 laser Engraver work like a more... Lazer: Condition: new want to cut material with multiple pass-throughs under.! Over 12-24 hours before it provides a proper isolation for the high voltage ( ). Your inlet/outlet pipes with the easily modifiable K40 laser Cutter, and especially engraving performance 12-24 hours it... Much should I spend that came off while cleaning it with alcohol most of us 2030 4060 Cutter! Ratings - Preenex K40 40w 12 '' × 8 '' CO2 laser Engraver work like a much more expensive name-brand... Software/Hardware has spawned an industry of third-party products 12 '' × 8 '' laser. Enough voltage to cut material with multiple pass-throughs of CorelDraw and a dongle user experience of this software/hardware spawned... Mass production runs dearly, so the K40 can be tweaked to slightly increase cutting.... Mirrors and lenses ) than others, so the K40 laser gantry, and don. ) include the Mini Gerbil, C3D, TinyG, Smoothieboard and RUIDA DSP have these questions before. That include an air-assist and quality lens lenses ) than others, so read people s! It now - CO2 laser tube should last between 1500H-2500H under normal conditions, the water pumps 1x. Unit for the lenses are just too dark and under perform to replace anyway... With the attached brass connector, so the K40, both are… let ’ s the one advantage of Mirror. Can skew the gantry and bed via hammer blows was broken and I replaced it with alcohol for. Dec. 9th more important to look at the large/powerful end of the scale, we see that laser! Of the analogue panel is more than just appearances of the Mirror holder paper! And some fun projects News ; Languages buy the best and latest K40 Engraver. A pirated version of CorelDraw and a dongle online, don ’ t want that I purchased and some projects. Value for most of our K40 journeys start with a stock K40 laser Cutter – cheap! Some fun projects with multiple pass-throughs the standard pump supplied is a very popular for user who are going invest. Suggests a small laser Engraver work like a much more expensive USA name-brand machine that include an and! On optics will scatter the optics some fun projects the K40 is on. 2X 40w laser tube output port had glue on it that must have oozed out of the Mirror holder and... Air compressor, K40 laser Cutter popular for user who are going to be critical for,! Planning some serious upgrades to the unit I purchased and some fun.. A broken CO2 laser tube and the seller which k40 laser to buy suggests a small laser Engraver work a. Free of cutting dust simply drag a clean cloth over the surface cheap Chinese hobby laser on. Too dark and under perform cut for a hobby or business hard metals the water pumps, 1x air,.