Description
Turn your ideas into a reality with the LongMill Benchtop CNC
The LongMill helps you take your woodworking and fabrication to the next level. Its range of workable materials include: any species of wood, a variety of plastics, soft metals like aluminum and brass, and a variety of machinable foams and waxes for model making or metal casting. Make signs, engravings, mid-size furniture, stands and shelves, wooden toys and games, guitar bodies, and much more! (see more in our Gallery)
We offer our machine because CNC technology opens up a whole new world of making capabilities, especially to those who have a limited shop environment or budget. Our goal is to empower you by giving you access to both a machine that’s capable of a wide range of projects, and by assuring you of the assistance that you’ll receive from our team as well as our ever-growing community of machine owners: many of whom started off green to the world of CNC as well but are now happy to share what they’ve learned along the way. (see our Facebook group and Forum)
We designed the LongMill to be the best hobby CNC router in its class, offering rigidity, and reliability, while being easy to put together. With large extruded aluminum rails, fully supported Y-axes, 1/4″ steel gantries on all axes, and high precision MG-12 type linear guides on the Z-axis, the LongMill is the most powerful CNC router in its class and price point.
Every kit comes with all the…
- Hardware, rails, lead screws, and gantries
- Control box, wires, and motors
- Instructions (downloadable from our website)
Assembly only takes a few hours and can be done with a set of wrenches, allen keys, and a flat head screwdriver. There is absolutely no soldering. We’ve spent thousands of hours designing and testing the LongMill to ensure that this machine is easy to put together. If you can put together IKEA furniture, then putting together the LongMill will be a breeze.
What do you provide?
- Your own wasteboard/spoilboard (found at your local hardware store), this is the surface that you’ll be mounting your machine to. See the ‘Size’ tab above for more info.
- A router (purchase one from us, use one you already have, or find one at your local hardware store/online)*
For routers, we recommend the Makita RT0700/RT0701. It’s a reliable and super powerful router that we’ve been using on our CNC machines for years.
Here are some other compatible routers we recommend:
- Bosch Colt (some versions may have a slightly larger 72mm diameter which may not be compatible)
- Dewalt 611
The LongMill can accommodate bore sizes of 52, 65, 71, and 80mm, Don’t see your router listed? Let us know the diameter of your router so that we can make a router mount for you. If you do not send us a diameter we will ship you a mount for the Makita RT0700/RT0701 (65mm).
Please note that routers/spindles which are
- Over 2.7kg/6lbs
- Wider than 80mm/3″
May not be compatible (but we’ll try to make it work)
*Routers that we supply will be 110V only (North America). If you live in a country which uses a different voltage, please purchase a router in your region. LongMills will come with a power supply that supports both 110V and 220V.
The LongMill and it’s software works on any computer and connects using standard USB. We sell the Vectric VCarve software but it’s not for everyone. Our machine is software agnostic so that you can find what works for you. Everything you need is available for free.
Technical Details:
– Laser cut, steel gantry plates for high rigidity
– Standard profile, extruded aluminum rails on the X and Y axis and MGN12 linear guides on Z axis
– Delrin V wheels with variable eccentric nuts
– 4-start, 2mm pitch, 8mm diameter ACME lead screw for high torque and fast movement
– NEMA 23 stepper motors on all axis
– 3D printed and aluminum parts
– Mount for Makita RT0701C routers, or request a custom mount size
– 24V power supply
– Arduino board loaded with GRBL firmware
– 4A TB6600 drivers
Our machine uses open-source hardware and firmware, letting users build and modify their machines. Not only that, many of our components are standard and easy to source or 3D printable, making replacing parts easy.
Colin McRae (verified owner) –
there is a large number of places I would choose to use washers. I had to undo many connections to use washers where required. The size of mounting board would be helpful “at the start”
-Machine ordered September 10, 2020
harold Mead (verified owner) –
I couldn’t be happier, with the machine and the help that I have received from your staff,thank you very much,
-Machine ordered September 12, 2020
Roger Isenbarger (verified owner) –
Easy to assemble and cuts great.
-Machine ordered September 11, 2020
Ethan Miller (verified owner) –
This machine is awesome everything showed up in working order and as expected!!!!!
-Machine ordered September 13, 2020
Douglas V. (verified owner) –
So far I am loving this machine!
-Machine ordered September 9, 2020
Michael (verified owner) –
Machine functions nicely. Feeding the threaded rod through the bearings is a real challenge. HMI and controls function well. Everything the machine needs to do I am happy with. Overall build went well per instructions provided online. Reccomend cross-bracing between the end and the front of the “y” Axis to provide rigid support while building.
-Machine ordered August 30, 2020
Luka G. (verified owner) –
Really great customer service machine instructions were super straight forward and as my first CNC machine the resources that the longmill team have made available for beginners makes the most complex cuts easy i would recommend this machine to everybody Sienci labs youre the best <3
-Machine ordered September 7, 2020
Ron R. (verified owner) –
We took our time putting it together , seemed pretty straight forward, no real issues. The wife and I are complete newbies to this technology, so it’s taking some time to figure out the cad cam software. Have downloaded Carveco. Only thing we’ve tried so far is the longmill text cutting. Went well. Just need to find time to sit down and play with it. Your customer service is fantastic. Always there right away to help out.
-Machine ordered September 2, 2020
Clinton M. (verified owner) –
Great Value for the $$! Easy build-instructions and so far (other than user errors) the manufacturing quality is top notch!
-Machine ordered August 31, 2020
brian bausch (verified owner) –
When it’s working it runs good so far. After user errors I’ve ran into issues. I took a few days away from it and am back trying to find the part I need. I’m still a bit afraid to run large projects due to the coupling failure but will hopefully be back to running bigger more intricate projects on nice wood soon.
-Machine ordered August 31, 2020
Tony (verified owner) –
I really struggled with choosing a CNC machine but the Sienci team won me over with their honest answers to my questions and their guidance to unbiased forums discussing the merits of competitors. The company ethos and values really come across in their videos and the personalities of the team. An amazing brand.
The machine assembly was a joy and I was amazed at the quality of all components. It’s an extremely solid and good looking machine.
Customer service was prompt and friendly (to be expected). I had a problem with customs forms and it was sorted quickly and I even got a few extras by way of an apology.
It’s still early days for me so I’m making mistakes and learning how to carve with different mills. The community is amazingly helpful and have really helped me out with great advice and links (especially Grant).
-Machine ordered August 25, 2020
Matthew Donatelli (verified owner) –
Once you get the hang of this machine it’s an amazing tool.
-Machine ordered August 20, 2020
Rhett Collier (verified owner) –
My longMill works great after a couple fixes. Sienci Labs was great about sending a missing part. I was able to fix an issue with the controller power connector. It was tinned and didn’t have a good connection. I cut off the of the cable, stripped it and reinserted it into the connector. The ugs gcode sender was stopping in the middle of jobs. I had to download several different versions before I found one that worked on Ubuntu Linux. I wish there were more videos on youtube about milling metal.
-Machine ordered August 21, 2020
Wayne (verified owner) –
Machine was delivered on time, great interaction with the team on ordering and pick up. Zero issues on setup instructions were clear and concise. No issues with the machine since, I am still learning and with the community you have built this adds to it. So far I have made some shop projects hold downs, dust collection gates, a lot of engraving / signs. I have some prototypes for other projects to sell and I am presently learning to carve.
Great value
-Machine ordered August 16, 2020
Chris Cober (verified owner) –
I got the 30×30 Longmill. This machine is surprisingly solid. I spent a couple weekends building my table and assembling the machine – the online assembly manual is detailed, complete and very well written.
My only assembly issue was that several of the flange bearings were too tight on the lead screws. I had to do a bit of light sanding on the first inch of those lead screws to get a good snug fit.
Other than that, very impressed. The aluminum rails are very beefy and the 3D printed parts are too. My first projects have turned out better than my expectations.
Thumbs up so far!
-Machine ordered August 1, 2020
Derrick (verified owner) –
I have experience building kits from the early days of 3D printers and a lot of this technology is shared with a CNC, such as grbl, g-code, stepper motors, axis control, etc.
Assembly was straight forward, but documentation could use some updates. Some of the photos did not match the latest version of the kit I received. Still very good though.
Customer service has been exceptional. I did have a problem with some v-wheels being under sized, causing slop in the Z-axis gantry. After making some measurements for the support rep, I was sent a replacement X-axis rail and V-wheels. Similarly, I found my Y-axis wheels were also under sized and got those replaced promptly.
In the last few weeks, I have made my own tools for my workshop, from simple angle finders and 90 degree clamps, to a downdraft dust collection table. I have also made some signage and name plaques. Currently making some coasters and designing a dog bed.
Overall, I wish I could give a 4.5 out of 5. The LongMill isn’t perfect, and one should not expect perfection. The LongMill is a tool, and like so many tools it requres a little skill to operate, and a lot of practice to master.
-Machine ordered August 18, 2020