BMF Unveils The microArch S240 Micro-Precision 3D Printer

By on September 23rd, 2020 in printer

Tags: , , , , ,

EMBARGO 9/23 at 9:00 AM ET BMF Unveils The microArch S240 Micro-Precision 3D Printer
The microArch S240 3D printer [Source: BMF]

BMF released details today about an industrial 3D printer targeting the micro parts market.

Projection Micro-Stereolithography

The Boston-based company has been on our pages earlier this year when they revealed their technology. The resin-based 3D printing process they use is called “PμSL”, for “Projection Micro-Stereolithography”. PμSL is able to achieve an astonishing resolution of 2μ, or 0.002mm. This is accomplished due to some technological magic that allows them to project UV light in extreme resolution.

The microArch S240 3D printer in operation [Source: BMF]

Evidently they’ve created several different resins that can be used in the PμSL process, including:

  • GR — Hard
  • HEK — Strong & Tough
  • HTL — High Temp, Low Viscosity
  • UTL — Tough
  • BIO — Biocompatible

These offer a variety of engineering properties, allowing BMF clients to select the right material for the job. Presumably they are developing additional materials to add to their portfolio in the future.

microArch S240

Producing parts in larger quantities on the microArch S240 3D printer [Source: BMF]

Now the company has released a new device, the microArch S240. This is designed for short-run industrial production.

What does “production” mean? Generally it’s the ability to run continuously to produce volumes of objects over a longer period. We tried defining “production 3D printers” in a previous story, and I think the microArch S240 hits a lot of the characteristics necessary for that classification.

New roller system on the microArch S240 3D printer speeds up printing [Source: BMF]

BMF says the new device includes these features to allow for production use:

  • Larger build volume of 100 x 100 x 75 mm (their previous largest machine, the P150, had a build volume of 48 x 27 x 50 mm)
  • Print speed increase of up to 10X, while maintaining high resolutions, apparently accomplished by a new resin spreading mechanism
  • Ability to handle higher-density materials, meaning it should be possible to 3D print stronger parts
  • Ability to 3D print in composite materials, for far stronger parts
  • Ability to 3D print ceramic materials
Ceramic 3D print made on the microArch S240 3D printer [Source: BMF]

The first two attributes, when combined, offer a tantalizing proposition: print faster in a larger volume. This could allow for either production of larger single parts or larger quantities of smaller parts in a single build.

microS240 Resolution

This machine produces parts with incredible resolution. These images show some of the possibilities of the microS240 3D printer. Note in the images above, each 3D printed part is sitting on a US penny!

This machine should be of considerable interest to companies currently producing detailed small parts. Typically these are produced using molding techniques, and thus are somewhat constrained in terms of possible geometries. The ability to 3D print such small, detailed parts introduces some new possibilities.

Ceramic part made on the microArch S240 3D printer [Source: BMF]

It would be possible, then, to 3D print small volumes of unique or customized parts. This would obviously require the creation of suitable unique 3D models for printing, and that could be the next challenge for BMF.

It’s likely this particular market is set in their ways as has every other 3D print market. In other markets some 3D printer manufacturers have gone to great lengths to “educate” their markets on the possibilities enabled by 3D printing. This can be a very challenging step, as it requires users to change how they think about designing parts.

It will be interesting to see how BMF approaches this opportunity.


By Kerry Stevenson

Kerry Stevenson, aka "General Fabb" has written over 8,000 stories on 3D printing at Fabbaloo since he launched the venture in 2007, with an intention to promote and grow the incredible technology of 3D printing across the world. So far, it seems to be working!

Leave a comment