Model Fridge for Salesforce IoT Electric Imp Developer Board

by DanHca, published

Model Fridge for Salesforce IoT Electric Imp Developer Board by DanHca Nov 14, 2017


This Fridge has a working hinge and securely holds the IoT Developer Board from Electric Imp with full instructions on how to create an IoT Fridge Monitoring Project using Salesforce IoT.

This Fridge and Commercial Cooler were designed to hold the Electric Imp impExploer Developer Board for people working on the Salesforce Trailhead that was used at Dreamforce 2017. The print will allow the LED status from the impExplorer to be seen through the door which makes it great to talk about IoT.

I have posted several different versions. It was created in Fusion 360 so have posted those files too but they may be a bit crude as I am still learning the tool. The Cooler is more square to represent industrial or commercial refrigerators, and I suggest an image can be added to the front. The models with the Salesforce Logo are slightly more advanced around the hinges to allow the door to open further but I included the 'plain' model since I know not everyone will want my branding.

The images show what it looks like in several scenarios as well as the Salesforce IoT Orchestration in the background. Please check out the Trailhead to build the IoT Project around this model:

Both fridges were designed to look proportional but as compact as possible. The 'freezer space' was put in to allow you to incorporate a heatsink to cool down the space but not really necessary. You can use plastic ice-cubes, roll of coins or Halloween mini-chocolate bars that have been frozen. (Don't use real ice! and watch for condensation which may impact your electronics.)

The Commercial Cooler is more square and intended to have an image glued on the front to look like the product desired.

The hinges are set up to take a piece of filament as the pin that holds the hinge together. When you put the filament in for the shaft of the hinge, cut is about 1/3 inches (1cm) too long then I use a soldering iron to melt the tip down to keep it secured and in place but check the how it opens before melting it in place. It should easily open to 90' but if you want it to open a little further (depending on which one you printed) you can slightly file down the area around hinge. I didn't want it to be too open around the hinge but depending on your use, you can get it to open just a bit wider with a little filing.

Everything should print fine without any support and at 100%.

Note: you are responsible for abiding by any Salesforce logo usage rights and Trailhead agreements.

Print Settings

Printer Brand:










I have the Monoprice edition and found that I got a little better prints with when I bumped up the temp about 5'

Overview and Background

Hands on project to learn IoT using Salesforce and Electric Imp

This is 3D model for hands on learning of an Internet of Things project to monitor a refrigerator using Salesforce IoT and the Electric Imp's impExplorer. It is the first project that will provide a basic understand of how to incorporate an IoT device into a solution that can be used in an end-to-end business monitoring design.

See full instructions at:

Lesson Plan and Activity

Learn about Internet of Things with a Connected Refridgerator

Full hands on instructions can be found here:

Materials Needed

Electric Imp Developer Board ~$25

You can order here:

Duration of Lesson

2-4 hours


Order IoT devices and optionally set up accounts

You will need the hardware, and depending on the age group, you may also want to set up the accounts. Particularly if the class is going to work in groups.

All the code is provided and it is all cut and paste.

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