3D Printing ProcessesBioprinting

BioAssemblyBot system can now 3D bioprint onto complex contoured surfaces

Newly enhanced scanning capabilities and associated workflows are key in future organ bioprinting

Stay up to date with everything that is happening in the wonderful world of AM via our LinkedIn community.

3D bioprinting technology platforms typically use gantry axes (X, Y, and Z) as their method of motion control. This enables additive manufacturing, a layer by layer approach to 3D printing, where new constructs are fabricated from the bottom-up in the Z direction. However, to fabricate complex biological constructs and eventually larger organ systems, more freedom of movement is required to meet all fabrication tasks.

The BioAssemblyBot platform, with its 6-axis robotic arm at the center of the platform, has the needed flexibility in print-path motion and directional access; with the added ability to execute a print task from a variety of angles. Further enabling such a workflow, the system visualizes surface features of complex objects within the fabrication envelope, incorporating such features in the 3D digital model.

Through unique toolsets that are included with the BioAssemblyBot, as well as a built-in workflow within the TSIM software program, this workflow has now been achieved.

bioprint contour surface

The Process

The TSIM design software, when coupled with a BioAssemblyBot, facilitates the capture of high-resolution surface data from objects placed on the BioAssemblyBot printing surface. Utilizing a laser measurement sensor with submillimeter repeatable accuracy, the surface height is measured across a chosen area and then saved on a local storage device in a simple point cloud format. Any network connected PC running the TSIM design software can request the point cloud data from the BioAssemblyBot.

After receiving the point cloud, TSIM automatically filters the data and reconstructs the surface as a triangulated mesh within the TSIM solid modeling environment. In this form, the surface can be used as a projection target for custom non-planar printing tool paths enabled by the BioAssemblyBot six-axis robotic manipulator. They’re also highly useful as a visual reference for a variety of bioprinting design and assembly tasks.

Print it to my heart

In this example, a patch is being printed onto the complex surface of a printed 3D model of a heart, generated from patient data.

The first step of this workflow includes the utilization of the BioAssemblyBot scanning tool to scan the surface of the object and import that data into the TSIM® Software Program. In this example, a section of the surface of the heart is the focus of the scan area. At this point, using the sketching tools within the TSIM software program, two example patterns are created de novo.

After the sketch is completed, the 3D model is generated and ready to be placed on the appropriate location on the model. The appropriate material is assigned to the design which then instructs the system on how to complete the print the task.

Research 2022
Polymer AM Market Opportunities and Trends

741 unique polymer AM companies individually surveyed and studied. Core polymer AM market generated $4.6 billion...

Davide Sher

Since 2002, Davide has built up extensive experience as a technology journalist, market analyst and consultant for the additive manufacturing industry. Born in Milan, Italy, he spent 12 years in the United States, where he completed his studies at SUNY USB. As a journalist covering the tech and videogame industry for over 10 years, he began covering the AM industry in 2013, first as an international journalist and subsequently as a market analyst, focusing on the additive manufacturing industry and relative vertical markets. In 2016 he co-founded London-based 3dpbm. Today the company publishes the leading news and insights websites 3D Printing Media Network and Replicatore, as well as 3D Printing Business Directory, the largest global directory of companies in the additive manufacturing industry.

Related Articles

Back to top button

We use cookies to give you the best online experience and for ads personalisation. By agreeing you accept the use of cookies in accordance with our cookie policy.

Privacy Settings saved!
Privacy Settings

When you visit any web site, it may store or retrieve information on your browser, mostly in the form of cookies. Control your personal Cookie Services here.

These cookies are necessary for the website to function and cannot be switched off in our systems.

In order to use this website we use the following technically required cookies
  • wordpress_test_cookie
  • wordpress_logged_in_
  • wordpress_sec

Decline all Services
Accept all Services



Join industry leaders and receive the latest insights on what really matters in AM!

This information will never be shared with 3rd parties

I’ve read and accept the privacy policy.*