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From large prototypes to beautiful refrigerators.

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Aaron Pearson - May 18, 2021
Aaron Pearson - May 18, 2021
The next time you open your refrigerator, take a moment to appreciate all those bins, drawers and shelves. It’s a cool example (pardon the pun) of good space management. But keeping our foodstuffs well organized takes planning, iteration and validation on the part of appliance makers.

It’s a process Doug Steindl knows well. He’s the corporate development lab supervisor at Sub-Zero Group, maker of luxury appliances. His job is to help refine new products and make them production-ready. To do that, Steindl’s lab relies heavily on 3D printing, particularly in the concept modeling and prototyping stages.
Sub Zero fridge interior.
Sub Zero fridge interior.
Sub Zero printer sheet image.
Sub Zero printer sheet image.

Some of Sub-Zero’s refrigerators are sizeable, up to four feet wide. 3D printing prototypes for these large units is challenging because they exceed the capacity of most of Sub-Zero’s current printers. This results in the need to outsource, adding more cost and time to an already tight product development schedule.


Large-capacity 3D printers are available. But they’re either out of budget reach for some manufacturers or don’t possess the reliability they need. For Doug Steindl and others in a similar predicament, what’s lacking is a reliable, large-capacity printer using standard thermoplastics at an affordable price point. So when Steindl heard about the availability of the new big-scale Stratasys F770, he was quick to take the opportunity.

Sub Zero F770 printer image.
Sub Zero F770 printer image.

The size, simplicity and accessibility of the F770 has been a good fit for Sub-Zero. And it’s probably safe to say that future Sub-Zero refrigerators will owe their existence in part to the F770. You can read all about Sub-Zero’s experience with the latest large-scale FDM printer in this case study.