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3D Printer Policy

3D Printer Agreement

The Harrison Public Library (HPL), in its Halperin Building, has a Makerbot Replicator Mini 3D printer. This policy governs its use.

How the 3D printer works

A patron designs a three-dimensional object using a 3D modeling program or a website such as

Then the patron saves the design as an STL file and submits the file to HPL. The 3D printer prints the three-dimensional object in plastic, layer by layer, following the design file.

What can be printed

The 3D printer must be capable of printing the object in no more than four hours. No 3D printing will be done when HPL is closed.

The completed 3D-printed object must be smaller than 5” x 4” x 4” and must be one color.

A patron can print at most one object per week.

HPL reserves the right to refuse any 3D printing request.

Who may use the 3D printer

Only trained HPL staff members can have actual hands-on access to the 3D printer.

Any patron with a valid library card from a Westchester Library System library can use the 3D printer. Priority will be given to patrons with a valid HPL library card.

All such patrons (or their parent or legal guardian if under 18) must sign the HPL 3D Printer Agreement before any design will be accepted for 3D printing by HPL.

How to request to have an object printed

A patron must upload his or her STL file to and enter the required information.
If a requested 3D-printed object meets HPL’s design and printing requirements, an HPL staff member will contact the patron to set up an appointment.

The patron should ask for an estimate of how long the printing job will take. The patron must be present when the printing job starts.

The patron can pick up the completed printed object at the HPL circulation desk. Objects which are not picked up within seven (7) calendar days following printing will be disposed of.

3D printing is subject to staff and printer availability.

How much printing costs

Currently there is no charge for 3D printing, although a charge may be imposed at a later date.

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