Resources
Software and Model Activities
The following resources support educational and design-focused efforts in nucleic acid nanotechnology.
3D Printable Molecular Model Kits

- Ready-to-print DNA modeling kit
Stacks of backbone and nucleobase parts
3 types of engineered connectors for easy assembly and disassembly
STLs for 100% part stacks available at https://3d.nih.gov/entries/3DPX-017650
STLs for 75% part stacks available at https://3d.nih.gov/entries/3DPX-018017
- Journal article describing kit and nanoechnological applications
"Modular, articulated models of DNA and peptide nucleic acids for nanotechnology education" by Caleigh Goodwin-Schoen and Rebecca E. Taylor. The Biophysicist. 2023.
Link to paper doi 10.35459/tbp.2022.000225
- Classroom activities
Guides construction of a DNA duplex, a polymerase demonstration, molecular tweezers and Holliday junction
Reprinted from Goodwin-Schoen and Taylor. The Biophysicist (2023) doi:10.35459/tbp.2022.000225
MoleculeCrafter Built in Onshape
- Semi-automated design of ANY molecular model is possible using MoleculeCrafter and we are initially focusing on nucleic acids
MoleculeCrafter is a suite of custom Features built within the online computer aided design tool Onshape.
Our custom converters extract atomic coordinate data from PDB files
This data can be imported into Onshape, and parts can be unitized and given custom connectors that support interconnection of parts when 3D printed.
Example input CSVs are provided below. These CSV files can be imported into MoleculeCrafter for model-creation learning activities.
- Journal article describing the MoleculeCrafter software tool and tutorials for getting started.
"MoleculeCrafter and Noncanonical Base Pairing: A Semiautomated CAD Tool for Creating Flexible and Unitized 3D Printable Macromolecules for Education" by Elsa Schleicher and Rebecca E. Taylor. The Journal of Chemical Education. 2025.
Link to paper doi 10.1021/acs.jchemed.5c00160
- Step-by-step tutorial for model kit creation and detailed background on FeatureScript custom features
Reprinted from Schleicher and Taylor. The Journal of Chemical Education (2025) doi:10.1021/acs.jchemed.5c00160
Useful DNA structures as starting points for model-making
1BNA duplex |
1BWG triplex |
139D G-quadruplex |
1DUL RNA |



