Top offer
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5% off your order
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- Checked in a real cart at SainSmart: the store accepted the code and took the discount off.
Current SainSmart offers
Code
5% off your order
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- Checked in a real cart at SainSmart: the store accepted the code and took the discount off.
Get SainSmart codes by email
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Promo code SUM
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17% Off
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17% Off
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15% Off Storewide
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Code
5% Off Storewide
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- Valid for all products available in the SainSmart store. Cannot be combined with other promotional offers.
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5% Off Your Order
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Code
$10 Off Your Purchase
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Halloween sale, up to 65% off
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- Source: SainSmart's home page
Early bird extra $400 off PRONAX CNC routers
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- Source: SainSmart's website
Extra 20% off today's deals
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- Source: SainSmart's home page
PRONAX CNC Batch 2 early bird 15% off
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- Source: SainSmart's home page
Sign up to the reward program for a $100 off discount
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- Source: SainSmart's rewards page
Free shipping
Free shipping on US orders $50+
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- Minimum order: $50
- Source: SainSmart's website
Educational discount for students and educators (sign-up)
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- Source: SainSmart's website
Up to 60% Off Clearance & Final Sale
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Enjoy Up to 40% Off Select Engine Models
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- Ends
Up to 30% Off Genmitsu Upgraded Spindle Motors
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- Ends
Up to 25% Off Select 3D Printer Filaments
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Save up to 25% on Accessories for Your 3D Printer
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- Discount applies to qualifying products only at Sain Smart.
- Ends
Extra 20% Off Select Hot Deals in Cart
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- Offer valid only on products marked '20% Off in Cart'. Discount is applied automatically at checkout with qualifying items.
Enjoy Up to 20% Off Solder Wire
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- Ends
15% Off Student & Educator Discount
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- Must complete sign-up form for eligibility; valid on eligible products only. Offer applies to verified students, teachers, and educational personnel. Discount is valid on eligible purchases at SainSmart only. Cannot combine with other promotions or discount codes.
Enjoy Up to $50 Off Select Electronic Measurement Instruments
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- Ends
Enjoy Up to $11 Off a Variety of Tpu Filaments
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- Ends
Subscribe to SainSmart and get special offers, free giveaways, and once-in-a-lifetime deals!
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Hot deal inside! Buy your favorite items with the best price on SainSmart
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SainSmart at a glance
- Free shipping
- Over $50
- Returns
- 30 days
- Pay later
- Affirm
- Rewards program
- Yes
- Ships internationally
- Yes
- Gift cards
- Yes
About SainSmart
SainSmart stocks more than 700 products for makers and hobbyists: Genmitsu desktop CNC routers, laser engravers, 3D printers and filament, plus workshop and electronics test tools, from a company founded in Lenexa, Kansas.
Before buying a router or engraver, remember that a promotion code cannot be combined with another promotion, so pick whichever single offer takes more off the cart.
SainSmart opened in 2011 as a vendor of open-source hardware, selling Arduino-compatible boards, Raspberry Pi accessories, sensors and relay modules. Its own online store followed in 2012, desktop 3D printers and a filament catalogue were added between 2014 and 2016, and the Genmitsu CNC brand arrived in 2018 with the 3018 router. The company works under the motto "Power to the Makers" and runs warehouses in Asia, Europe, Canada and the US.
Current lines include the PRONAX routers with automatic tool changing, the Cubiko machine, Kortek laser engravers, resins sold under the Ministry of Resin name and the BeaverBot C2 cardboard cutter for children. The site also takes orders for custom CNC parts made from customer CAD files and keeps resource pages such as a milling bit database.
When shoppers look for SainSmart coupons
SainSmart coupon searches peak in December, about 1.5× a typical month, and dip lowest in January.
Does SainSmart offer free shipping?
Yes. US orders of $50 or more ship free, limited to the contiguous 48 states; Alaska, Hawaii, P.O. Box and APO/FPO/DPO addresses do not qualify.
How long does SainSmart shipping take?
Orders usually leave in 1 to 3 business days; standard US delivery then takes 5 to 7 business days, express 3 to 5.
What is SainSmart's return policy?
New, unused items in original packaging with an RMA are refundable within 30 days of shipping; from 30 days to 3 months a 20% restocking fee applies.
What payment methods does SainSmart accept?
Visa, Mastercard, American Express, Discover, PayPal, Amazon Pay, Shop Pay, Apple Pay, Google Pay and Affirm financing.
More about shopping at SainSmart
- Holiday returns
- Anything bought between November 1 and December 31 can come back until January 31, a longer runway for gift machines.
- WIP Rewards
- A free account earns Smart Points per dollar across Silver, Gold and Platinum tiers; 25 points take $1 off and 200 cover free standard shipping.
- Gift cards
- Physical and e-gift cards run from $5 to $200, never expire and cannot be refunded.
- International
- Ships to over 80 countries from warehouses in the US, Canada, Europe and Asia.
From SainSmart's own pages, read Sep 29, 2026.
Sources: SainSmart website, SainSmart shipping policy, SainSmart returns policy, SainSmart help center, SainSmart rewards page, SainSmart gift card page, SainSmart atc sign up page, SainSmart college discount sign up page
How to use a SainSmart discount code
- SainSmart applies coupons during checkout, at the step where discounts are calculated, so the reduction shows up before payment is chosen.
- Member-only coupons are tied to the WIP Reward Program, which is free to join by creating an account, so opening it before starting the order avoids a second pass through checkout.
- A promotion code will not combine with other promotions, and special offer sales leave out PROVerXL series CNCs and gift cards, so the largest routers may sit outside a promotion entirely.
- Tax-exempt buyers should submit their certificate, since US sales tax is added on top of listed prices rather than included.
If your SainSmart code doesn't work
- Exclusions: Special offer sales exclude PROVerXL series CNCs and gift cards.
- Combining offers: Promotion codes cannot be combined with other promotions.
- Where to enter it: Coupons are applied during checkout, where discounts are calculated.
More reasons a code fails, and what to try: why promo codes don't work.
More ways to save at SainSmart
- Joining WIP brings 200 welcome points, enough for free standard shipping on an order below the $50 line; after that, every 25 points knock $1 off.
- A banner also promotes a $100 off discount for signing up to the reward program.
- Referrers earn a 5% commission for every friend they bring in.
- Workshops ordering several machines can ask for bulk pricing through a request form, and any Genmitsu CNC comes with a free 3-month trial of Carveco Maker software, worth counting when comparing routers.
SainSmart questions, answered
How can a free SainSmart discount be earned?
Opening a WIP Reward Program account costs nothing and adds 200 welcome points, and every 25 points later converts to $1 off. Referring friends pays a 5% commission per referral on top.
Is there a SainSmart discount on a first order?
The welcome benefit runs through the WIP Reward Program: an account created before the first purchase starts with 200 points, redeemable for free standard shipping.
Can a SainSmart promo code be used on a PROVerXL CNC?
Special offer sales at SainSmart exclude PROVerXL series CNCs as well as gift cards, and promotion codes cannot be combined with other promotions.
What happens if a SainSmart order is returned after 30 days?
Between 30 days and 3 months after shipping, a return is still accepted but carries a 20% restocking fee. Orders placed from November 1 to December 31 instead have until January 31.
Does SainSmart ship outside the US?
Orders go to over 80 countries, fulfilled from warehouses in the US, Canada, Europe and Asia.
Can a SainSmart machine be paid for over time?
Affirm financing is among the accepted payment methods, alongside Shop Pay, PayPal, Amazon Pay, Apple Pay, Google Pay and the major cards.