The AltMill is the pinnacle of hobby CNCing, bringing industrial-level precision to a price point and ecosystem for both beginners and advanced users. The AltMill MK2 2×4 is the perfect CNC machine when time and performance are crucial.
Highlights include:
Production level cutting speeds (approx. 600 inches/minute)
Closed loop motor system on all three axis to auto-correct positioning and auto-stop when necessary (reliable for production style work)
Requires little maintenance during project production
Advanced, production-style features including Y-axis auto-squaring; limit switches by default; and tram adjustment capabilities
Cuts materials ranging from hardwoods to plastics, foams, composites, aluminum – even steel
Support for 80mm spindles and routers
25″ x 49″ working area with a max Z-height of 5.5″
Footprint of 59″ wide and 38″ deep
The AltMill MK2 2×4 comes with a standard 80mm spindle mount only. It does not come with a spindle, which must be purchased separately.
Sturdy metal legs with the ability to add 4ft wide shelving underneath
Welcome package
***Not included with your AltMill MK2 2×4*** Check out our recommended products tabs for an ideal set up, but note the following ARE NOT included with your order:
Computer or laptop
Spindle
End mills or bits
T-tracks
Waste board (e.g. MDF 2ft x 4ft sheet)
Set of metric Allen keys, standard bits or drill for assembly
***Some photos may contain items for illustrative purposes, such as spindles, caster wheels, t-tracks, or additional shelving. There may also be cosmetic differences between the machine in the photo and the production version of the AltMill.
Lead times This product has a potentially long waitlist, relative to demand and seasonality. For more info on expected shipping and delivery times, please see our Order Status page.
Full Payment is required at time of purchase to get your order into the Queue. We ship on a first-come, first-served basis. If you choose local pick-up, you are subjected to the queue order and cannot get your machine quicker.
Power Requirements
We recommend allocating two 15A 110V/120V circuits — one for the spindle and dust collection system, the other for the machine and a computer.
The AltMill consumes 500W and runs off a 48V 10A power supply
The 1.5KW Spindle Kit consumes 1500W at max load
The 2.2KW Spindle Kit consumes 2200W at max load
If you live in a country with 220V/240V power you must use a transformer to convert to 110V/120V.
To solely run the machine, you need a rating above 500W
To run the machine and spindle, you need a rating of 2000W
3rd Party Spindles
I would like to source my own spindle, what should I be aware of?
For spindles 2.2KW or above, you will need to install extra 220VAC wiring
The AltMill comes with an 80mm spindle mount, we do not have larger diameter mounts at the moment
The VFDs that may work with our controller are: Huanyang v1, Huanyang P2A, Yalang YL620, H-100, and GS20, however they are not plug-and-play — read this article for further information
More Information
Check out our comprehensive FAQ for prospective customers, addressing questions such as power requirements, spindle sourcing, and bundle deal info.
Warranty
The AltMill has a 120 day warranty once it arrives at your door.
We want you to have a great experience with your machine, so if any parts are found to be missing or damaged, please email us. We will ensure that you receive the support you need to restore your AltMill to operating condition or provide a full or partial refund.
You may cancel an order if it has not shipped yet, please contact us if you wish to do so. We do not accept returns for AltMills that have already shipped.
General Warranty and Limits of Service:
Effective March 11, 2024
Throughout this policy the words “we”, “us” and “our”, or “Sienci Labs” will be used to refer to Sienci Labs Inc. herein and “AltMill” or “machine” will refer to Sienci Labs’ Sienci AltMill. Additionally, the words “you”, “your”, “user”, and “operator” will refer to the original purchaser/customer, user, or viewer of any of the products or media provided by or through Sienci Labs.
Sienci Labs Inc. (the “Company”) grants the AltMill (the “Product”) a standard warranty within Canada and the US to the original customer to be free from missing parts, defects in material, and defects in workmanship for a period of one hundred and twenty (120) days from the date of receipt by the original purchaser. Sienci Labs Inc. will ensure that the appropriate support is provided to the original customer to restore the AltMill to operational condition or provide a full or partial refund under the sole discretion of the Company.
This warranty does not cover damage due to improper use or assembly, lack of maintenance, normal wear and tear, or modifications to the AltMill which are not produced or authorized by the Company. Consumables such as cutting tools and sample or stock materials which may have come with your AltMill are not included in this warranty.
This warranty will become void if the operator does not follow the Safety Warnings and Guidelines, uses the Product for illegal purposes, intentionally causes damage to the Product, or transfers the Product to another owner.
The original customer must contact Sienci Labs Inc. within one-hundred and twenty (120) days of receiving their order to make a warranty claim to be eligible for warranty service. Proof of purchase, tracking number, email address, or other material will be used to confirm the original purchasing date and the identity of the original customer. If damage was due to shipping, original packaging materials must be kept in the original received condition. Photos, videos, written descriptions, and other items may be requested to assess and validate a warranty claim.
In the case Sienci Labs Inc. requires the original parts to be returned, the customer is solely responsible for packing all items securely. Damage incurred during return shipping will not be covered by the warranty. A method of payment such as a credit card may be requested by Sienci Labs Inc. to cover shipping costs or damaged items if Products are not eligible for warranty service.
Does not work your tech checked it could not fix it this machine does not run at all it goes in a straight line and it will not run around around the table by I bought the 220vfd and the g controller y ooo ur tech got on line in my machine and could not do anything with it b he said he was going to replace my g sender and he did not he also sale he was going to replace the slb ext whic did com i installed it still does not work this is going on months we need to get this up and running lets get someone on this and get it b fixed
(0)(0)
Rated 5 out of 5
GLEN SHURTZ (verified owner)–
This machine is awesome! I had a cheaper desktop machine before I bought my altmill 4×2. I’m still a newbie at CNC but felt the cheaper machine was holding me back and felt like a toy. After getting my altmill I felt like I had nothing holding me back and had a fully functioning machine. With gsender and the Altmill you have the full package.
When I built the machine I used the videos and instructions from the website together to help me get it right. A couple hiccups but nothing I couldn’t overcome.
This machine is a beast and easy to learn on. No regrets buying the altmill 4×2.
(0)(0)
Rated 5 out of 5
Charles (verified owner)–
As a beginner, I am really glad I chose the Altmill. It did take some time to get up and running but it was pretty straightforward. The videos online were helpful. Pretty much plug-and play. No calibration steps or anything like that. It just works.
(0)(0)
Only logged in customers who have purchased this product may leave a review.
Bill Aaroe (verified owner) –
Does not work your tech checked it could not fix it this machine does not run at all it goes in a straight line and it will not run around around the table by I bought the 220vfd and the g controller y ooo ur tech got on line in my machine and could not do anything with it b he said he was going to replace my g sender and he did not he also sale he was going to replace the slb ext whic did com i installed it still does not work this is going on months we need to get this up and running lets get someone on this and get it b fixed
GLEN SHURTZ (verified owner) –
This machine is awesome! I had a cheaper desktop machine before I bought my altmill 4×2. I’m still a newbie at CNC but felt the cheaper machine was holding me back and felt like a toy. After getting my altmill I felt like I had nothing holding me back and had a fully functioning machine. With gsender and the Altmill you have the full package.
When I built the machine I used the videos and instructions from the website together to help me get it right. A couple hiccups but nothing I couldn’t overcome.
This machine is a beast and easy to learn on. No regrets buying the altmill 4×2.
Charles (verified owner) –
As a beginner, I am really glad I chose the Altmill. It did take some time to get up and running but it was pretty straightforward. The videos online were helpful. Pretty much plug-and play. No calibration steps or anything like that. It just works.