The Longmont Public Library offers free access to a 3D printer for all library cardholders, with up to 5 hours of print time per person each week. Before using the printer, you’ll need to attend a one-time orientation, which can be scheduled during the first 15 minutes of your reservation. Kids under 16 must have a parent with them for the orientation. The library provides all filament (Bambu PLA Basic) and personal filament isn’t allowed. Prints happen in a public space and can’t be moved once started. The 3D printer, a Bambu X1E with a 0.4 nozzle, is located on the second floor near the computer lab.
3D Printing
Before you can use the 3D Printer:
Please read the Getting Started Guide and complete a 3D Printing orientation. Orientation options are below.
All users must complete an orientation before using the 3D printer. You may schedule your orientation session at the beginning of your first reservation and use the printer once you have completed it. Important: users under the age of 16 must be accompanied by an adult during your orientation, and your release form must be signed by a parent or caretaker. Once orientation is complete, you will be asked to sign the 3D printing release form acknowledging you have completed orientation and understand the 3D printer policies and guidelines.
Sign up for an orientation:
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- Book a 1-on-1 appointment. Appointments are available as late as 4:30 pm Monday through Friday. No weekend or evening 1-on-1 appointments are available, or
- Register and attend a group orientation class. These happen monthly from 6-7 pm.
Have you completed an orientation? If not, please do so before reserving 3D printer time.
A 3D printer release form will be given you to sign once you have completed your 15-minute orientation. It serves as confirmation that you have completed the required orientation, and that you agree to the 3D printer policies and guidelines. This form will be kept on file.
To prepare you for safe and successful use of the 3D printer at the Longmont Public Library, please read all the information in the application form carefully.
The Longmont Public Library utilizes the Bambu Studio software for splicing. This document will give a brief overview of the 3D printing process. Longmont Library Lab staff are available to help. Please read our Getting Started Guide before your first visit.
Deciding what to print
- The easiest way to start printing is to find a 3D model on websites like printables.com or thingiverse.com.
- The next way to obtain a 3D model is to create one yourself using tools like tinkercad.com.
- It is important to note that the 3D model you choose or that you create must be able to fit within your reservation window up to 5 hours.
Preparing your file for the printer
- Open the Bambu Studio Software
- Click and choose to Import your model
- Adjust any settings:
- Your print time can be shortened by reducing the size, but this can fuse moving parts and limit details.
- For models with overhangs greater than 45 degrees, enable supports.
- For models with moving parts, disable brim.
- When you’ve finished with the settings and are ready to slice your model, press “slice plate”.
Export the plate and print
- When your reservation is available you may collect the SD card from staff. Otherwise, you will need to save your .gcode file to a safe location until your reservation is ready.
- After the model has been sliced make sure to and select the SD card.
- Place the SD card into the Printer. Tap on the Printer screen to wake up the printer > Select the folder containing the files > Select your Print Job > Choose the appropriate filament > Print.
- Before hitting print, you will be presented with the option of choosing your filament. The printer is equipped with 4 PLA colors. You may choose between these 4 colors.
What is 3D printing?
A process of creating three-dimensional objects from a digital file. Instead of cutting or drilling material (as in traditional manufacturing), 3D printing builds objects layer by layer using materials like plastic, resin, metal, or even food or living cells.
How much does it cost?
At LPL, we’re proud to offer free access to our 3D printing equipment & materials. There are no fees or hidden costs—just an open invitation to explore, create, and learn. Our goal is to continually introduce innovative resources like 3D printing and ensure they are accessible to everyone, regardless of experience or background. Whether you’re a student, artist, entrepreneur, or curious maker, we welcome you to use this technology and be part of a creative, forward-thinking community.
What can be printed?
With 3D printing, the possibilities are virtually endless, limited only by your creativity. These printers are being used in countless ways across everyday life.
Some examples of what can be 3D printed include, but are not limited to: practical items (phone stands, key holders, hooks & knobs), creative projects (sculptures, figurines, cosplay props, jewelry, art pieces), prototypes (product prototypes for design testing, engineering parts, machine components, architectural models), educational tools (molecule models, DNA structures, math and geometry aids, replicas of historical artifacts) medical devices (prosthetics, orthotics, custom grips anatomical models for training) larger scale items (furniture parts, building components, tools).
What cannot be printed?
LPL does not permit the printing of weapons or items that infringe on trademarks or copyrights. Additionally, staff will not sign non-disclosure agreements (NDAs), and all printed materials are produced in a public, shared environment. The items must comply with the Longmont Library’s Standards of Behavior Policy.
Who can operate the printer?
Patrons and staff are welcome to use the 3D printer. To reserve time on the printer, users must first complete an application and attend a 30-minute orientation. This can be done at the beginning of your first reserved appointment time. The printer is available to all community members. If you are under the age of 16, a parent or guardian must be present during your orientation and complete the application on your behalf.
How can I get started with 3D Printing modeling?
The easiest way to get started in the world of 3D modeling is to research various online resources like YouTube, TinkerCAD, blender. Our recommendation is to start research on YouTube using “3D modeling in TinkerCAD” as the search term. If you’re feeling ambitious, Blender can be used to create extremely complicated models that will elevate your experience.
Can someone else use my account to print a model? Use of the 3D printer requires the user to have a library account. Accounts need to belong to the person making the reservation. If you do not have an account and wish to have a friend’s account, make a reservation, they need to be with you for the reservation.
My print came out defected, can I reprint?
Reprinting of a design is permitted within your 5-hour reservation window. If your print requires additional time, you’ll need to schedule a new reservation during the following week. All reprints must be approved by staff in advance. If your design is defective, please notify staff at the Computer Lab or Reference Desk for assistance. Please note that LPL staff are not responsible for any defects or issues with printed items.
What’s the late policy?
As per our policy, patrons have 30 minutes to check in for their reservation. Check-in must be done with a staff member at either the Computer Lab or Reference Desk within the first 10 minutes of your scheduled time. Failure to check in within this window will result in automatic cancellation of your booking, and you will need to reschedule. If you are unable to attend your reservation, please notify staff at least 24 hours in advance. After two instances of no-shows without prior notice, you will be unable to make reservations for up to one month.
This PDF outlines the Longmont Public Library’s 3D printer policies. Please read our Getting Started Guide before your first visit!