Эргономичный нож для сменных лезвий x-acto

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Тип делится своим опытом создания продукта, от прототипа из пенопласта до конечного продукта

 

I know a lot of you craft, I made something to help.

by Seamusriley · 16 days ago

Always start with the finished product, right?

So this is where it started. In my first year of architecture school our teachers had us using those shitty pen knives that killed your fingers after using them for hours. So I analyzed the cause of the problem. It's caused by a hyper-extension in the first joint in your index finger. So I made a quick model that eliminated the hyper-extension.

I made my first model out of sculpting foam and couldn't use it to create a working prototype, so I had to duplicate the handle out of wood. This took some time. I started making them in my mom's basement, spending 8 hours a day sculpting handles and analyzing them.

Process shot. Multiple handles.

Once I had a form that I was satisfied with I created a template so I could cut as many blanks as I needed. After that I would sculpt them with a Dremel and sand them with a belt sander.

After making a few iterations I started having students at the school (Boston Architectural College) test them out. I'd analyze the way they would hold them and make adjustments.

Handles with notes. All part of the iterative process.

The form I settled on. At this point I'd been working on the handle for about a year. It's now the combination of 7 different orientations of cutting ergonomically.

Time to make some 3D printed models. I had to teach myself the 3D scanning software (NextEngine 3D scanner) as well Rhino (3D modeling software) so I could modify the 3D mesh that the scan created. After that process, which took like two months, I was able to 3D print prototypes to send out to architecture firms to be beta tested some more.

3D printing a prototype. At this point I added a magnet inside the handle to hold the blade in place.

 

 

I make all of the canvas bags by hand. Check out the social media pages! www.facebook.com/ergokiwi www.instagram.com/ergo_kiwi

 

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[нахал]

А чем он нож в рукояти фиксирует? Заявлена же сменность ...

[ant-tv]

там магнит и поворотная хреновина (чёрная деталь на последней фоте)
Разбор виден на фоте презентации

[нахал]

Не похоже на поворотную. Видится просто заглушка со штифтом в отверстие хвостовика. Дешево и сердито.