
Welcome to Sienci Support
Order Status
Check your Order Status
Tariff Update: The latest tariff information can be found on our blog here – Tariff Update August 2026
Lead Time Updates
Order Status Tracking
AltMill 4×8
AltMill 2×4 and 4×4
ATC
LongMill MK3
LongMill MK3 Shipping Updates:
September 25 – LongMill‘s started shipping the w/o September 14, but the LongMill Beginner’s Kits are slightly delayed and will begin shipping shortly. Contact us if you have any questions.
May 2026 – LongMill MK3s will start shipping in waves. The first 300 machines are expected to start shipping mid-September 2026, in the sequence in which they are ordered. This first wave of shipments is expected to take a minimum of 4-6 weeks to clear out the queue. The next round of machines will be on back order, and most likely start shipping mid-to-late-October 2026, based on the order in which they are received. We will provide general updates via our socials and emails as we approach our expected ship date of mid-September, should any issues arise.
All customers will be able to purchase an MK3 (the machine is not affected by Canada’s Ontario ESA Compliance).