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AltMill MK2 4×4

(228 customer reviews)

$3,160.00

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 4×4 is your go-to CNC when time, performance and precision are crucial for production-level reliability.

The AltMill MK2 4×4 comes with a standard 80mm spindle mount only. It does not come with a spindle, which must be purchased separately.

This product has a lead time. View current lead times.

Ontario. Canada Customers: Starting April 29th, we’ll be pausing sales for all sizes of AltMill. Please read further on specific plans for each machine – ESA Compliance.

 

    Description

    Highlights:

    • 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
    • 49″ x 49″ working area with a max Z-height of 5.5″
    • Footprint of 59″ wide and 62″ deep

    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.

    Additional information

    Weight 76 lbs
    Dimensions 38 × 11 × 12 in
    Include Spindle and Dust Shoe Kit

    Include Spindle and Dust Shoe Kit, Machine Only
    origin-criterion

    C

    What's Included

    Included with your AltMill MK2 4×4

    • SLB-EXT controller and emergency stop
    • 48 Volt Power Supply
    • Partially pre-assembled rigid frame
    • Inductive sensors for homing
    • Sturdy metal legs with the ability to add 4ft wide shelving underneath
    • Welcome package

    ***Not included with your AltMill MK2 4×4***
    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.

    Specifications

    Specifications

    • Rigid frame and linear motion design using HGR15 linear guides and ball screws on all axis mounted to a custom-designed, machined aluminum extrusion
    • Closed loop stepper motors for over 600IPM
    • Support for 80mm spindles and routers
    • 49″ by 49″ working area with a max Z-height of 5.5″
    • Inductive sensors for homing included
    • Sturdy metal legs with the ability to add 4ft wide shelving underneath
    • Footprint of 59″ wide and 62″ deep

    Must Have Add-on: 1.5kW, 2.kW Spindle or 2.2kW ATC Spindle

    Unlock the full potential of your AltMill with a 1.5W or 2.2KW ER Spindle and Dust Shoe Kit, or, an Automatic Tool Changer Spindle Kit

    Each 1.5KW ER20 Spindle & Dust Shoe Kit comes with:

    • 80mm Dust Shoe
    • ER20, 80mm, 1.5KW 110V Air-Cooled Spindle
    • 110V, 1.5KW, 3-Phase VFD
    • AC power cable and 5m spindle power cable
    • ER20 1/8″, 1/4″, 3/8″and 1/2″ collets (one of each)
    • Data cable to connect to the AltMill/SLB-EXT controller for remote speed control

    Each 2.2KW ER20 Spindle & Dust Shoe Kit will come with:

    • 80mm Dust Shoe
    • ER20, 80mm, 2.2KW 220V Air-Cooled Spindle
    • 220V input, 2.2KW, 3-Phase output VFD
    • NEMA 6-15P AC power cable and 5m spindle power cable
    • ER20 1/8″, 1/4″, 3/8″and 1/2″ collets (one of each)

    Each ATC Spindle Kit comes with:

    • 2.2kW ATC Spindle
    • ATC Spindle Mount
    • Enclosed 2.2kW VFD and Mount Adapter
    • Clear Cut Dust Shoe
    • Tool Length Sensor
    • ATC Expansion Board for an SLB-EXT Controller
    • 2.2kW VFD NEMA 6-15P Power Cord
    • 10m Length 8mm Air Line Tubing
    • Male ¼” NPT to 8mm Air Line Push Fitting
    • ER20 Collet Wrench

    **Each ATC Spindle Kit comes with a variety of tool holders, collets or racks (or no rack.) Read for more details.

    Recommended Add-ons & Accessories

    FAQs

    Choosing an AltMill vs a LongMill

    Payment

    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

    Altmill with the 1.5kW spindle. We recommend allocating 2x 15A, 110V/120V circuits — one for the spindle, the other for the machine and a computer.

    • The AltMill consumes 500W and runs off a 48V 10A power supply, 110-120 volt circuit
    • The 1.5KW Spindle Kit consumes 1500W at max load, 110-120 volt circuit

    Altmill with the 2.2kW spindle. We recommend allocating 1x 15A, 110V/120V & 1x 20A, 220/240 Circuit — one for the spindle, the other for the machine and a computer.

    • The AltMill consumes 500W and runs off a 48V 10A power supply, 110-120 volt circuit
    • The 2.2KW Spindle Kit consumes 2000W at max load, 220-240 volt circuit

    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 1.5kW spindle, you need a rating of 2000W

    Altmill Power Supply Specifications: Input: 100-130 VAC 50/60 Hz, 7-54 Amps, Output: 48 VDC 10 Amps, 480 Watts

    International Shipping

    We do not have distribution centers but we ship internationally from our office via UPS.  Shipping costs vary from $300  to $1900 USD. You are responsible for any taxes, duties and brokerage fees.

      • HS Code 8465.91
      • Carton Sizes and weights
        • Package 1, 62x16x11 (in) 70 lbs (X rail box)
        • Package 2, 62x16x11 (in) 70 lbs (Y rail box)
        • Package 3, 37x10x11 (in) 65 lbs (Main box)
        • Package 4, 15x13x5 (in) 20 lbs (Spindle kit)

    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 FAQs 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.

    Instructions & Assembly

     

    Videos

    Shipping

    228 reviews for AltMill MK2 4×4

    4.8
    Based on 228 reviews
    5 star
    85
    		85%
    4 star
    8
    		8%
    3 star
    3
    		3%
    2 star
    0
    		0%
    1 star
    1
    		1%

    1. Nels Angelin (verified owner) –

      I am impressed with the quality of the entire materials list. I followed the guidance of the video instruction and the list I printed out from the app listing. Sometimes the video went by pretty fast for my comprehension. I had the most trouble at the end putting the cables into the dragrails, particularly the Y rail contents with the crossover from the X rail. One thing that can be improved is contact to a live agent with questions from a beginner. I found I could go to Garrett Fromme with IDC with a few questions. When I was really stumped I looked between the written and video several times. Fortunately I figured out the dragrail routing of parts at the end. –My experience was a little unique in that did not have a good shop space to put the machine, I had a room barely big enough but is intended to be my training room to get acquainted. The room is 10×12 I had to make alot of repairs and finishing before I could work the assembly. I worked through passing of my wife and finishing the room. I had months with the boxes unopened in the house to complete the room. I must say that the Altmill itself came very quickly for me, but some of the extra parts, ( spindle and computer were slower to arrive.) It was ok as I was preparing the room and floor before my assembly. My greatest suggestion is provide a contact for personal questions easy to access for help.

      One thing I misunderstood, but was my problem from the beginning was noting what is front and back of the machine. You answered well, I misinterpreted. You stated the one end with two holes the other with 4 holes, I looked for the holes then found it was the physical “blocks” that made the difference. I did have to take apart some of my assembly to get back on track in the right order.
      The machine is well thought out and well designed. That is why I bought it to meet my plans. For the moment the packing boxes are serving for a temporary table for parts laid out. I am planning to put a vacuum unit outside the room to save space, noise and dust for the unit.

      (0) (0)

    2. Martin Miller (verified owner) –

      Lots of problems. Long time getting parts. Now waiting for Clearcut dust shor

      (1) (0)

    3. Bill Wilson (verified owner) –

      Great

      (2) (2)

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