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LongMIll MK2 CNC Machine
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LongMill Benchtop CNC MK2.5

(458 customer reviews)

$1,359.00$1,879.00

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Machines ship in 2-3 weeks.

The LongMill MK2.5 is a powerful and affordable hobby CNC router perfect for any workshop. Scale it to your needs by choosing from one of its three flavors: 12×30, 30×30, and 48×30.

The machine name roughly corresponds to its cutting area in inches and each machine has 125mm (~4.9″) of Z-axis travel.

Not sure what you need to order for your LongMill? Check out the Beginners Kit.

Shipping is calculated at checkout.

458 reviews for LongMill Benchtop CNC MK2.5

4.8
Based on 458 reviews
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  1. William Brigman (verified owner)

    I am satisfied with the machine. It was very easy to assemble and adjust. On the customer service, I have not had a reason to call for any help or advice. But from my experience with your company I feel that I would not be disappointed. I am a 64 year old lineman and this is the first time I have seen a CNC Router. It is and will be, for a while a challenge for me to get comfortable with it. I have been making some boxes and doing a little v carving.

    Thanks for making a machine that will challenge me and my imagination.

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  2. Andy R. (verified owner)

    I have had my longmill 48×30 for just over a month and while working full time I have been able to accomplish so many projects on my time away from work. I am running this machine for a hobby. The assembly was easy and straight forward. I love that they included a 3d printed T wrench for assembly it made the job a lot faster. I built the unit in 2 sittings due to time constraints on my part. The quality of the parts and overall machine is outstanding. I added the limit switches to my machine right away. The electrical wiring was the easiest part of assembly. I have a little bit of AutoCAD experience so designing my own projects is not a challenge. I invested in VCarve pro because it was recommended for this unit. It is easy to learn and great. GSender is user friendly and simple to use. I love that the Adreno controller is built so well and I have no bugs or issues. I did add a emergency stop for my router and a speed control for rpm. I am also adding a tachometer to the unit. I have made beautiful signs and last week I made hallowe’en lanterns which have been selling very well. I have zero regrets buying this 48×30 longmill I can rip plywood and screw it down to my work table and start cutting in a matter of minutes. The Longmill is great to look and and a very solid design. I would recommend it highly.

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  3. charles scully (verified owner)

    very easy assemble

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  4. jeffrey kearns (verified owner)

    i havent assembled it yet. so cant really rate it

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  5. Scott Chase (verified owner)

    Well let’s start this off with quality is great with all the parts . Once I figured out a few confusing areas on putting together ( drag chain ) and the added limit switch kit , I still have to tell the CBC they are installed. idc woodcraft reviews and his other videos were what I based my purchase off of . Same went with my bobscnc . I’m waiting on a bit to get delivered so I can finish my spoil board and get on to carving . And I hope the laser attachment and learning goes quickly as well.

    Only thing I wasn’t happy with is small Allen wrench stripped on first bolt. Will be going over all these with anti slip Allen wrench set

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  6. Arthur Gibeaut (verified owner)

    Appears to be a robust machine. I’m impressed.

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  7. Patrick D. (verified owner)

    Value for price is great. Wish there were a way to have the controller toggle the router on and off.

    Have had the bolts come loose on the carriage clamp that rides the ballscrew. The loose bolt marred the aluminum as the machine traveled with it pinned between the clamp and the x-axis. Created a burr that had to be sanded down to repair. Not sure why they backed out.

    Stepper motors get ungodly hot even when theyre not operating much. Raises concerns for end of life on parts coming sooner than I had hoped for.

    Drag chain doesnt like to stay oriented perpendicular. It gets pushed diagonally and doesnt sit on top of the x-axis. Maybe the 3d printed brackets to affix to the machine could be beefier so you can really torque down on it to prevent the chain pivoting.

    3d printed saftey covers for the ballscrew nuts were included for the smaller nuts, but not for the larger 48×30 nut.

    Wish dust boot also included a sliding rail to adjust and fix it at different heights.

    Auto zero doesnt work with really tiny bits like 2mm in Gsender. When it goes to touch the leftmost x bound, it approaches but never touches it and then throws an error. (This one is likely user error).

    Gsender crashes if you try to load to large of a gcode file.

    (1) (0)
  8. Hector Martinez (verified owner)

    This machine is exactly what I wanted.
    It does look and works even better.
    After the learning curve, it is very user friendly.

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  9. Vic Armstrong (verified owner)

    Living in Australia made it a harder decision to purchase from Canada due to import and shipping costs adding over a $1000 extra. No CNC experience watched lots of YouTube videos especially Garrett Fromme IDC Woodcraft ordered the 48 x 30. I also ordered a lot of extra bits including the starter pack from IDC EXCELLENT VALUE. It all eventually arrived went together quite quickly and easily, lots of frustrating moments and still ironing out the wrinkles learning the vCarve pro software. I’ve made several signs of various types from pocketing to v bit carved signs made mistakes – lots to learn, the software is very good but a big learning curve. The Longmill has worked well still trying to refine the precision but getting there. Long way to go but getting there. Only recommend to people with patients. 😜😄👍

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  10. Terry (verified owner)

    I love it. Very user friendly. Instructions for set up were easy to follow. Wish I would of spent the extra $500 at the beginning and got the bigger size. Now I have to discern with the extra cost of the extension kit and shipping again. Will be around $800 now instead of $500. Otherwise excellent machine.

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  11. Allan H. (verified owner)

    Overall, my comments and thoughts are my own.
    I was sitting on the fence for sometime between Onefinity and Sienci Longmill MK2. I chose the MK2 primarily because of cost/value for money. And it has not disappointed me. The purchase was simple and UPS delivered a week early so I was extremely happy.
    I was a bit worried about building the machine at first, having no experience what so ever; however once I started I had it up and running in just over 3 hours. I have completed a couple of signs so far and have been very impressed with the outcome. Not at all familiar with CNC machines or Cam/Cad software, so I chose the free software options to start me off, carbide create and Easel using gsender to operate the machine.
    Overall I am extremely happy with my choice, and I look forward to many projects.

    Thank you to all at Sienci Labs

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  12. John Lucassen (verified owner)

    This is the best machine, after having nothing but trouble with a Chinese machine, this one is fantastic, works perfectly out of the box and the service to all my emails was outstanding. building it by the online manual made it a breeze. You’ve got to try this machine it is rock solid and I love it. Also the laser attachment and helpful online videos made my work look very professional. Sienci Labs will go far, they are the best company I have ever dealt with, I predict that they will go far, I thank them and recommend them to all.

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  13. Dennis (verified owner)

    Great service and I love the MK2.

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  14. George Clark (verified owner)

    I am super happy with my LongMill 48×30. It’s a beast! The YouTube instructional videos with Chris made assembly a breeze. Looking forward to making some cool guitars in the near future.

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  15. Ron N. (verified owner)

    A bit pricy, but the quality is worth it.

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  16. owain jones (verified owner)

    I think its spot on love it

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  17. Steve Dills (verified owner)

    For the quality of the machine and size of it compared to others, the price is great. I had no experience prior to buying the LongMill . I have been wanting a CNC machine for awhile but did not want to spend the thousands of dollars some companies wanted. After reading many reviews, I decided on the LongMill. The assembly was straight forward with the aid of the assembly videos. I have not had to use the customer service yet. I have been able to find the answers to my questions either on the Sienci website or YouTube. I purchased the VCarve software to create my projects. I will have to say that there is a learning curve for the software and using the machine. The good thing is there are plenty by of videos to help you learn it. I am very pleased with my purchase and plan to use it to improve my wood working capabilities.

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  18. Jeffery Fannin (verified owner)

    The 5 or 6 part video series was very help full, I had only one question and the customer service folks got me on the correct path to fixing it. It really wasn’t a fix but they helped me out anyway. Thanks for the machine.

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  19. josh b. (verified owner)

    This is a great for the cost. I ended up spending 5k to get my table, vac, laser, software, computer, and other small things. But I am coming from using a Full size Shopbot CNC at work and wanting to be able to work from home when possible. So far the Longmill is working out great for the price it not a shopbot but in not 20k so you can’t compare. I do miss not have a spindle on the MK2 but it will come someday 🙂 I love the support you get with Longmill and the Facebook community is great. Building the longmill is not bad and if you can watch youtube and follow along with a PDF you can build the Longmill. I am happy that I have pick longmill MK2 for my home CNC.

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  20. Jeffrey Maitland (verified owner)

    The assembly of the machine was a bit confusing at times. Most of the video’s available are for the small 30×30 and not many for the 30×48 which has some differences. There in no updated video on installing the inductive sensors.

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  21. stephen zumbach (verified owner)

    I have been using CNC machines for the better part of the last 20 years. I shopped for a while and tried a few and then selected the Longmill. 48″x30″ is a great size for a small shop, with big needs.

    Not only is the build quality amazing, but Customer Support is second to none!

    You will also find many of us in the Facebook group, asking and answering questions, the community is always there and helpful

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  22. Larry M. (verified owner)

    Have looked the machine over but have not had time to get it together yet gone away for work but everything looks good so far really happy with the way the material is for construction and the quick response on the one piece that was damage than you will let you know how the build goes when I get it done
    Larry

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  23. Neal D. (verified owner)

    Easily put together and plug and play setup with gsender. Great addition to my workshop. Opens up a new adventure for me

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  24. frank muniz (verified owner)

    longmill mk2 is a very will made cnc one of the best cnc I seen not a cheap made machine .Very will put together I am very happy with my purchase works like a champ would recommed this to anybody to buy go for it you won’t be sorry.

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  25. claude knapp (verified owner)

    Machine is great a few hiccups but got through it

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