Announcing the new addition to our fleet: the BMF S240 3D printer! 

Our new micro-scale 3D printer is online and available as part of our 3D printing services. 

Boston Micro Fabrication microArch S240 3D printer

The BMF S240 is a specialized 3D printer, capable of printing at an incredible 10-micron layer height. It uses a different technology than the rest of our current resin printers called DLP (digital light projection), which uses ultraviolet projection to cure layers instead of lasers. The BMF S240 has a smaller volume than the rest of our printers at 100X100X75 mm, however the micro-scale results are truly incredible and layer lines are visually nonexistent. The printer will be especially useful for printing micro-channels and micro-needles. The BMF prints using a high-temperature resin (datasheet linked here) that is autoclavable and heat resistant up to 114°C (237.2°F). 

If you are interested in printing with the BMF S240, please schedule a consultation with Lexi or Noah

Below are images of sample prints the show the fine details the BMF S240 is capable of and the BMF S240’s Design Guidelines. 

Glaucoma stent
Cardiovascular stent

S240 Design Guidelines

Design feature Recommended Advanced 
Maximum part size 100 x 100 x 75 mm   
Minimum part size 1 mm³ 0.5 mm³ 
Minimum feature size 0.05 mm 0.01 mm 
Minimum hole diameter (vertical) 0.05 mm  0.04 mm 
Minimum hole diameter (horizontal) 0.15 mm 0.1 mm 
Maximum unsupported hole diameter (horizontal) 2.0 mm 3.0 mm  
Minimum wall thickness (supported) 0.05 mm 0.02 mm 
Minimum wall thickness (unsupported) 0.1 mm 0.05 mm 
Minimum unsupported overhang angle 30° 20° 
Maximum bridged overhang length 1.5 mm 5 mm/10 mm (rigid material) 
Maximum non-bridged overhang length 0.3 mm 0.5 mm 
Aspect ratio for channels 100:1 500:1 for > ⌀ 0.1 mm 
Aspect ratio for pins & pillars 40:1 100:1 for > ⌀ 0.1 mm 
Minimum feature clearance 0.1 mm 0.05 mm 
Recommended channel shape > ⌀ 100 μm rectangular or circular   
Recommended channel shape < ⌀ 100 μm circular   
Part-to-part spacing  0.1 mm 0.05 mm 
Layer height 0.01- 0.05 mm   
Support structure shape cone   
Support structure cone top diameter 0.08 – 0.2 mm   
Support structure cone base diameter 0.1mm-1 mm  
Design features and recommended settings

Learn more about 3D printing at the Holman Biotech Commons. The Bollinger Digital Fabrication Lab is proud to provide complimentary objects and 3D design consultations contributing to innovation in teaching, learning, research, and clinical care at the University of Pennsylvania.

Categories: Uncategorized

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s