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AlgoLaser · Diode
AlgoLaser DIY Kit MK3 · 20W diode
Cutting-focused 20W module of the MK3 with a free air pump: 12 mm wood in one pass claimed
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Last updated How we evaluate
Released July 2026
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Showing module: 20W diode
TL;DR
The DIY Kit MK3 20W is the top tier: the MK3's 400 × 400 mm frame, AlgoOS touchscreen and focus stick with a larger 20W diode module and an air pump included. AlgoLaser rates it for 12 mm wood in one pass, the only cutting figure it publishes for the MK3. At $459 it costs $150 more than the 15W. No independent review exists yet to confirm the claim.
Best for
What makes this machine stand out
Hardware and workflow features worth understanding before you buy : not just wattage on a label.
12 mm in one pass, claimed
AlgoLaser rates the 20W module for 12 mm wood in a single pass, the only cutting figure it publishes for the MK3.
Air pump included
Unlike the 8W and 15W machine-only versions, the 20W ships with an air pump for cleaner cuts.
Our verdict
Ideal if you
The 20W turns the MK3 into a budget cutting machine: a larger module, an air pump in the box and AlgoLaser's 12 mm one-pass rating, on a 400 × 400 mm frame with an offline touchscreen. For $459 it suits makers who cut signs and shapes every week.
Skip if you
The cutting claim is unverified, the frame is open, and smoke management becomes a real cost at this power. Buyers who mostly engrave pay $150 for speed they will rarely use.
Pros
- AlgoLaser rates the module for 12 mm wood in a single pass
- Air pump included even with the machine-only version
- Fastest engraving of the MK3 range on the same 400 × 400 mm frame
Cons
- $150 more than the mid tier, and the 12 mm figure is unverified
- More smoke and heat: an outdoor exhaust is a must, and the enclosure is a $299 extra
- Larger module with no published spot size, so fine-detail performance is unknown
What this machine is for
Regular wood cutting and faster engraving on a budget open frame
20W module · AlgoLaser DIY Kit MK3
Laser spot size
—
Motion precision: —
Sample engrave job
~9–14 min
10 × 10 cm (4 × 4 in)
Sample cut job
~5–8 min
10 × 10 cm (4 × 4 in)
Reference benchmark: same job size on every machine so you can compare times fairly. Times are estimates for the reference job above; your design complexity and settings will change them.
Materials
- · Wood & plywood
- · Leather
- · Slate & stone
- · Dark acrylic
- · Paper & card
- · Coated and anodized metal
Accessories & add-ons
Typical inclusions and add-ons for this profile : confirm your SKU.
- Optional
Enclosure / cabinet
Third-party enclosure improves smoke control and safety
- Recommended
Laser safety glasses
~450 nm diode: OD rated for your wavelength
- Recommended
Fire extinguisher
Editorial guidance : not a live parts list. See also: Ventilation setup · Safety basics
Practical notes
Beginner notes
This profile is the 20W tier of the DIY Kit MK3. Compare it with the 15W: choose the 20W if you will cut wood every week, since the included air pump narrows the real price gap. For mostly engraving, the 15W is the better value.
Pro tips
Keep the air pump running for every cut and clean the lens window often: thick cuts foul it quickly. Treat 12 mm as a best case on soft wood; dense plywood and hardwood need slower speeds or extra passes. Vent outside or add the purifier, since cutting smoke builds up fast.
Pro / technical specsRaw numbers for experienced users comparing machines.
- Max speed (spec)
- 250 mm/s (15 000 mm/min)
- Avg engrave speed
- ~80–180 mm/s
- Avg cut speed
- ~4–8 mm/s
Common questions
Can the DIY Kit MK3 20W really cut 12 mm wood in one pass?
That is AlgoLaser's claim on its product images, and no independent test has confirmed it yet. Diode figures like this are usually measured on soft wood with air assist; plywood and hardwood take longer. In our benchmark, a 10 × 10 cm square in 3 mm basswood takes about 5–8 min.
Is the air pump really included?
Yes: on AlgoLaser's store in October 2026 the 20W machine is listed at $459 with a free air pump. The $659 Basic kit adds a honeycomb bed, the RR2 rotary roller and a riser kit.
20W MK3 or Alpha MK2 20W?
The MK3 20W is cheaper ($459 against $579 for the Alpha MK2 20W machine on AlgoLaser's store, October 2026) and adds a standalone touchscreen. The Alpha MK2 is a sturdier, more established frame with an optional infrared module for metal. Choose the MK3 for budget cutting, the Alpha for a longer-term workshop machine.
Alternatives to the AlgoLaser DIY Kit MK3 20W
Machines in the same space, picked from our database by type, price, and score.
Algolaser · Diode · $599 – $849
Algolaser Alpha MK2 20W is the 20W SKU on the Algolaser algolaser alpha mk2 line. Algolaser targets makers who want faster engraving and tighter spot control than typical budget diodes. Verify optical power on the listing: do not assume combined-watt marketing.
Sculpfun · Diode · $480 – $979
S30 Pro Max 20W is Sculpfun's earlier high-power open-frame. Still capable for wood and leather; Ultra 22W/33W superseded it for new buyers but used units remain popular.
xTool · Diode · $499 – $1,229
Launched May 2026, the M2 packs laser engraving, cutting, and integrated inkjet color printing into one enclosed desktop at $599. Built for everyday crafters and Etsy sellers who want color + laser without a pro CO₂ budget: not a metal-marking or production cutter.