Gabriel Krieshok

Propr Handle


Propr Handle

A 3d-printed handle that makes it easier to hold and position your tablet device or phone.




Inventor • Kickstarter Admin • Startup Founder • Modeler • 3d Printing Engineer • Visual & Product Design • Operations • Branding



Sketching • Concept-drawing • Paper Prototypes • Cardboard Prototypes • Iteration • Contextual Inquiry • 3d Modeling • 3d Printing • Manufacturing • Entrepreneurship • Research • Product Development


Notepad + pen, Sketch, Concept app, Illustrator, Photoshop, Premiere, Octoprint, Fusion360, Felix, Post-its


Additive manufacturing, or 3D-printing, has the potential to transform manufacturing. It allows people to design, prototype, and create items of utility and artistry.

This is one example of how I’ve used this process to make reading and consuming content easier and more comfortable by inventing from scratch a completely new product using 3D design and printing.

This project has been my labor of love, start to finish. I began designing the product in the summer of 2016, produced 3d-printed prototypes in my workshop in the fall and winter of 2016, and launched the now-successful Kickstarter campaign in the spring of 2017.

Timelapse build of Propr Handle prototype using 3d printer.

Timelapse build of Propr Handle prototype using 3d printer.


While you’re sitting or laying in bed reading on a flat screen, your hands, arms, even back become uncomfortable and tired rather quickly from the way that you have hold and position this thing — it’s just unnatural and awkward.

I’m certainly not the first to have thought of this and tried to come up with a solution — there are a lot of cases and clunky stands out there — but I was looking for something simpler, portable, more convenient, and wouldn’t force me to buy a new case for every device.

I assumed what I was looking for was already out there.

It wasn’t.


I very much approached this challenge with the mantra, “start where you are, use what you have, do what you can.”

I began by simply sketching out what I wanted, and playing around with various ways of strapping a handle onto the back of my Kindle or phone.

Start where you are, use what you have, do what you can.
— Arthur Ashe

Modeling and Iteration 

One challenge I knew that I would have to overcome—my CAD skills had to be leveled-up considerably!

The progression of design sophistication has been a reflection of my 3d-modeling abilities over time—moving from Tinkercad last summer to Fusion360 as my software of choice.


I was able to launch a Kickstarter campaign advertised to friends and associates to help launch an initial run of the product that would help me streamline the product, iron out any last-minute supply chain kinks, and to contemplate future ways of marketing.

I've just launched and I'll be unveiling a whole line of 3d-printed products in a similar vein to the Propr Handle.

Let me know if you're interested in getting updates!