AO Metal A100 — large-plate LPBF metal 3D printer
Four times the plate, the same process.
The A100 builds on a Ø100 × 100 mm platform, four times the area of the A50, in the same chassis and with the same controls and slicer. Fiber laser from 300 to 1000 W, optional 445 nm blue laser, build plate heated to 250 °C or 900 °C as an option, and every parameter open. Designed and manufactured in the U.S.A.

What the A100 is
When the parts outgrow a small plate.
A process that works on a small machine eventually needs room: nesting a dozen parts in one build, printing a short series, or making a component wider than 50 mm. The A100 gives that room without a second learning curve. The footprint stays at 1150 × 730 mm, the operator sees the same screens, and the build file you qualified on an A30 or A50 opens unchanged.
Everything that makes the A50 useful for difficult alloys carries over: the optional blue laser for copper and precious metals, the optional 900 °C plate for crack-prone grades, and an open parameter set. The 300 W model connects to a 110 V single-phase supply; argon use stays under 2 L/min.

Models and price
| Model | A100-300 | A100-500 | A100-1000 |
|---|---|---|---|
| Fiber laser, 1064 nm | 300 W | 500 W | 1000 W |
| Power supply | 110 V, 1 phase | 220 V, 3 phase | 220 V, 3 phase |
| Power consumption | 4 kW | 6 kW | 8 kW |
| Weight | 350 kg · 772 lb | 400 kg · 882 lb | 450 kg · 992 lb |
| Price | from $99,000 | Quoted on request | Quoted on request |
Included with the printer
- AO Build Studio and AO Build Slicer, loaded with proven parameter sets for your alloys
- Build plate, powder dispenser, filters, seals and changeover tools
- On-site installation and operator training, and a named engineer afterwards
- Warranty of 12 months on laser, scanner, blower, motors and electrics
Have ready on site
- A wet vacuum cleaner, explosion-proof if you run reactive metals
- A sieving machine for powder reuse
- For finishing: heat-treatment furnace, bandsaw or small lathe, polishing tools
- Argon and a floor area of roughly 1150 × 730 mm
Blue laser and 900 °C platform are quoted as options. The A100 is built to order; plan on 8 to 14 weeks.
What you gain
Powder for a first build
A larger plate, still measured in grams.
Powder to start a build of test parts 10 mm tall on the full plate:
Parts 20 mm tall need 1.05 kg of 316L, 608 g of Ti-6Al-4V or 371 g of aluminium. A dispenser filled to the top takes 10.53 kg of 316L. One 10 mm steel cube contains 7.9 g of metal.

Nothing locked
Under your control
- Laser power, scanning speed and pattern
- Layer thickness and hatch distance
- Contour and core exposure, zone by zone
- Platform temperature and laser selection
Left out on purpose
- Proprietary powder packaging
- A vendor list of allowed materials
- Recurring software fees
- Locks against third-party or home-made powder
Working with an alloy outside our validated set? We develop the parameters and deliver the finished program.
Technical specifications
| Parameter | A100 |
|---|---|
| Technology | Laser powder bed fusion (LPBF) |
| Build envelope | Ø100 × 100 mm · Ø3.94 × 3.94 in |
| Fiber laser | 1064 nm · 300, 500 or 1000 W |
| Blue laser | 445 nm · 250 W, optional |
| Laser spot | 75 µm · 55 µm optional |
| Scan system | Galvo scan head + F-theta lens |
| Max scanning speed | Up to 12 m/s |
| Layer thickness | 15–100 µm |
| Build plate heating | 250 °C standard · 900 °C optional |
| Inert gas | Argon, under 2 L/min |
| Parameter | A100 |
|---|---|
| Material changeover | 3 hours |
| Software | AO Build Studio + AO Build Slicer |
| File format | STL |
| Power supply | 110 V 1 phase (300 W) · 220 V 3 phase (500, 1000 W) |
| Power consumption | 4 · 6 · 8 kW |
| Dimensions (W × D × H) | 1150 × 730 × 2050 mm · 45.3 × 28.7 × 80.7 in |
| Weight | 350 · 400 · 450 kg |
| Alloys proven to date | 16+, list kept open |
| Warranty | 12 months |
| Price | from $99,000 · 300 W |
Materials
The same sixteen alloys as the A50, on a bigger plate.
Who it is for
Parts printed on AO Metal



A100 among the line
The A100 is the largest machine in the AO Metal line. It shares chassis, lasers and options with the A50 and differs only in plate size; the benchtop A30 is the entry point. One software for all three.
| Model | A30 | A50 | A100 |
|---|---|---|---|
| Build envelope | Ø30 × 60 mm | Ø50 × 100 mm | Ø100 × 100 mm |
| Format | Benchtop · ≈100 kg | Floor-standing · 350–450 kg | Floor-standing · 350–450 kg |
| Fiber laser | 200 W · 300 W option | 300, 500 or 1000 W | 300, 500 or 1000 W |
| 445 nm blue laser | — | Optional | Optional |
| Build plate heating | Not heated | 250 °C · 900 °C option | 250 °C · 900 °C option |
| Material change | 1 hour | 2 hours | 3 hours |
| Price | $59,000 | from $89,000 | from $99,000 |
Your own powder
Next to an A100, an ATO ultrasonic atomizer and a Microtrac particle analyzer close the loop: melt your alloy into spherical powder, verify size and shape, and print it at scale. We can also atomize a custom batch for you, typically in three to four weeks. R&D solution, PDF
Questions
A50 or A100: how do I choose?
By part size and quantity. Both have the same lasers, options, footprint and software. Choose the A100 if parts are wider than 50 mm or you want to nest more parts per build; the A50 uses less powder per build.
Does the larger plate need more powder?
Yes. A set of 10 mm test parts takes about 527 g of 316L on the A100 compared with 128 g on the A50, and a full dispenser holds about 10.5 kg of 316L.
Which alloys need the blue laser?
Copper and copper alloys, gold, silver and platinum. They reflect most infrared light, while the 445 nm blue laser couples into them efficiently. Other alloys print with the fiber laser.
What power does the A100 require?
110 V single phase for the 300 W model, about 4 kW. 220 V three phase for the 500 W and 1000 W models, about 6 and 8 kW.
How long does a material change take?
About three hours for a full changeover between alloys, done by your own operators.
Can we move a process from our A30 or A50?
Yes. All three machines use AO Build Studio and AO Build Slicer, so a qualified program opens on the A100 without being rebuilt.
Will it run a powder we buy elsewhere or make ourselves?
Yes. There is no approved-material list and no powder lock. For a new alloy our engineers can develop and validate the parameters for you.
What is included in installation and warranty?
On-site installation, operator training and a named engineer. The warranty is 12 months on laser, scanner, blower, motors and electrical systems.
Downloads
Send us the part you want to make.
We will recommend the laser, options and powder, and send a formal quotation with lead time. Call (747) 800-4854 or email [email protected].