Education Recommendations for 3D Printing in the Classroom
3D printing is an exciting technology that is very engaging for students of all ages. When establishing a 3D printing program in the classroom, it is important to consider the following:
Time:
- Depending on the printer, most small to medium-sized objects can take between 20 minutes and 2 hours.
- This is dependent on the overall size, amount of supports, number of walls, and infill percentage.
Hypothetical scenario:
- An instructor with a class of 20 students assigns students to design and print a small model using Tinkercad. The projected amount of time needed for each student print could range from 6 to 20 hours. If this instructor has two of these classes, it is evident that the amount of time needed is extensive.
Recommendations:
Printer Selection
- Ideally, an instructor would have access to multiple printers. A ratio of 5:1 is a good balance between the number of students and the number of devices needed to manage.
Limits
- Limit the size and scope of the students' models with design restrictions. Appropriate limitations and design restrictions can greatly improve the success of the project.
Maximize build volume
- Depending on the size of the printer, the model size, and the area needed for supports, attempt to put more than one model on the print bed. This can decrease the amount of time between model completions, but it will increase the time needed to complete a job and also increase the chance of failure.
Model Management
- With a large number of models to manage per class, it is important to have a system to track what has and hasn't been completed.
The Windows app 3D Viewer (opens in a new tab) is a great tool to view 3D models in the file explorer preview panel.
Google Form
- To manage my classroom projects, I selected Google Forms. This was a simple form that recorded the student's email address, class period, grade level, and did not allow students to submit the incorrect file format.
Label Files
- Ensure that students label their downloaded model files with their names and class periods.
Increase File Size Limit
- Ensure that the file size limit is increased to allow for larger files.
Viewing Submissions
- Add a checkbox column before the student's email address.
Many districts have the option to convert student emails to "cards" with a friendly name.
Download the Models
- When you begin to print the student .stl files, you may choose to download individual files via the link provided in Google Sheets, or you may download all the files at once by downloading a .zip file of the Google folder associated with the form.
Slice the Models
- Once all the files are downloaded, within slicers like Bambu Studio or Orca Slicer, you can load all the models at once. The slicer can auto-arrange all the class's models into an efficient layout and arrangement on multiple build plates. The files can then be sliced and printed in sequence.
Remove supports and clean up the models as needed.
Be careful when allowing students to remove supports. Small pieces of plastic may break off violently and cause injury. I recommend eye protection when removing supports.
Printer Recommendations
These are my personal recommendations based on my experience as a professional 3D technician, middle/high school instructor, designer, and maker.
Bambu Labs 3D printers (opens in a new tab)
- Rationale:
Quality of Life
- The majority of the setup and calibration functions are automated, increasing print quality, reliability, and ease of use.
Including bed leveling, pressure advance, flow rate, resonance compensation, motor noise cancellation, and acceleration.
Integrated slicer
- Bambu Studio is an open-source slicer with well-tuned printing profiles for all Bambu printers.
Remote Management
- Bambu printers are managed via a web interface built into their slicer. This allows you to set a variety of filament parameters, trigger calibrations, as well as start, pause, and monitor prints in progress.
Remote connection and monitoring are available with the Bambu Studio mobile app and from within the slicer. All printers require Wi-Fi internet access for these features to function.
These are not unique features to Bambu printers; however, this is a very well-integrated, full-stack solution that is easy to use and has a large community of users.
Connection to Makerworld Repository (opens in a new tab)
Features:
- Pre-sliced models and profiles ready for all its machines
- Maker Lab (opens in a new tab): Generative Modeling Tools & AI Modeling Experiments
- Maker's Supplies (opens in a new tab): Non-3D printed parts you need for your project in one place, with detailed part information.
- CyberBrick (opens in a new tab): A set of microcontrollers, transceivers, receivers, motors, and controllers with predesigned models.
Retailers
Online:
In-store only: Micro Center (opens in a new tab)
Bambu Lab 3D Printers Comparison
Printer Name | Price Range | Notable Features |
---|---|---|
Bambu Lab X1E (opens in a new tab) | $2,387 – $2,899 | Enterprise-grade features: Ethernet, WPA2-Enterprise Wi-Fi, chamber heater, HEPA filtration, LAN-only secure mode. |
Bambu Lab H2D Combo (with AMS) (opens in a new tab) | $2,299 | Dual-nozzle, large build (350×320×325mm), modular toolhead (engraving, plotting, cutting), AMS 2 Pro and AMS HT included. |
Bambu Lab H2D (no AMS) (opens in a new tab) | $1,899 (est.) | Same specs as combo: dual-nozzle, modular head, large build volume – sold without AMS system. |
Bambu Lab X1-Carbon Combo (opens in a new tab) | $1,249 – $1,799 | CoreXY, 20,000 mm/s² accel, 7μm lidar, dual ABL, AI-inspected 1st layer, AMS for multi-color. |
Bambu Lab P1S Combo (opens in a new tab) | $899 – $1,595 | Enclosed CoreXY, ABL, vibration compensation, optional AMS for multi-color. |
Bambu Lab A1 Combo (opens in a new tab) | $549 – $779 | 256×256×256mm, full-auto calibration, active flow rate compensation, AMS Lite for multi-color. |
Bambu Lab A1 (opens in a new tab) | $399 – $549 | Prusa-style, full-auto calibration, active flow rate compensation, optional AMS Lite. |
Bambu Lab A1 Mini Combo (opens in a new tab) | $399 – $599 | Compact 180×180×180mm, full-auto calibration, AMS Lite for multi-color, quiet printing. |
Bambu Lab A1 Mini (opens in a new tab) | $249 – $299 | Compact 180×180×180mm, full-auto calibration, quiet printing. |