dmalawey / openjar

Open Source Mason Jar Designs

OpenJar: An Open-Source Hardware Design

| Github Repo | Website | GrabCAD |

Reduce, Reuse, and Recylce using modern technology.

Figure 1. Rendering of the first Mason Jar Lids successfully printed.

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Features

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For Makers:

1. Uses standard, cheap mason jars.

2. Watertight using a rubber seal, or Airtight by postprocessing.

3. Support-free printing, and works with cheap desktop 3D printers.

For Users:

1. Food-safe results if you use ABS plastic.

2. Dishwasher-safe if you use ABS plastic.

For Designers:

1. 3D Printable and parametric designs.

2. Free STL files for printing, SOLIDWORKS for design, and STEP for importing to other softwares.

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Design Tutorials

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These tutorials are related to the OpenJar project.

1. Learn to Edit Parametric Parts in Solidworks
2. Learn Design for 3D Printing - Part 1 for engineers, Youtube
3. Learn Design for 3D Printing - Part 2 using fasteners, Youtube

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Details

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This project focuses on improving open-source hardware!

There are many 3D printable options online, but this project emphasizes open-source hardware. I hope open hardware becomes like open source software: users can make modifications easily and contribute easily.

Therefore, we should make parametric models and finer documentation. If documentation successfully explains the model and assembly, then we gain all of the benefits of open software. Lastly, we must make our designs fully digital. If I don't offer the CAD model of the store-bought jar, then contributors must reworkd the assembly ► this breaks the open-source ecosystem. Let's empower hardware designers!

Cheers to hardware developers reaching a new paradigm. ☺

| Modularity | Parametric models | Documentation | Digital Designs | 

Adapter Threads

Adapter threads have two pieces: adapter lid and the thread component. Three options for threads are pre-made (with STL files). Using two parts gives us no-support printing and modularity. Easily bond the parts with superglue.

The first adapter thread is for a common spray bottle such as windex. Use the lid_adapt.stl and thread_spray.stl

Figure - spray bottle assembly

The next thread is the foamy (my favorite). It uses a larger adapter and a larger thread. Use Lid_foamy.stl and thread_foamy.stl and this is suited for one of the foaming soap pumps from dollar tree.

Figure - foamy dispenser

Rubber Seal

You can store foods if you use a rubber seal. (actually, it's silicone) I used this one from Amazon

Figure - silicone gasket

Jar Sizes

Any brand of jar will work, but the mouth size should be standard.

Figure of Jar sizes 1/2 cup and 2 cup

Spray Nozzle

The spray nozzle setup is a two-part design. To get the dip tube at the bottom of your jar, thread on the first piece and then cut the remaining length to 130mm.

Figure - sprayer assembly and dip tube

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Downloads & More

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Project Publications

• GrabCAD ◄ All the CAD files here!
• Webpage this page, made with Docsify
• Github OpenJar repository

ℹ️ Learn to build documentation like this.

• Docsify-This.net template to build a page like this.