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Want to make music anywhere, but also want physical controls? BOOM! Tuna Knobs turn every touchscreen into a MIDI / DJ controller. Read more

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Funded!

This project was successfully funded on August 8, 2014.

Want to make music anywhere, but also want physical controls? BOOM! Tuna Knobs turn every touchscreen into a MIDI / DJ controller.

Samuel Verburg
Project by

Samuel Verburg

First created  |  0 backed

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About this project

Wired: Attachable knobs for iPads are music to bedroom DJs' ears.

Gizmag: Tuna Knobs turns tablets into mobile DJ stations

Featured on:

Tuna knobs are control knobs that stick to any touchscreen and let you control DJ and music making apps like you would with dedicated music hardware. Tuna Knobs are designed to give you the tactile precision you need when making music, while giving you the versatility of mobile applications. 

Making music is the passion of millions of people and nowadays it's possible to make music anywhere due to great apps and accessible tablets. However the downside of using a touchscreen is that you miss the authentic feel of twisting a knob on professional DJ gear. Tuna Knobs wants to bring back that feeling to the tablet so you can enjoy the mobility and versatility of your touchscreen with the precise and expressive experience of professional hardware. On top of that Tuna Knobs are small enough to take with you wherever you go so you can transform your tablet into a true DJ station anywhere.
We need your pledge to make these a reality! 

A Stylus in the shape of knob, with a small axis in the middle and a suction cup on the bottom. Made to control (music) apps with virtual knobs on every touchscreen device. 

So Tuna Knobs stick to your touchscreen using a micro suction cup and translate a turning movement to a touch command. Simply stick them on your screen and you are ready to start twiddling away. Tuna Knobs use conductive rubber to translate turning a knobs into the right signal for your touchscreen, not dissimilar to how a stylus works.

Tuna knobs are tested on an iPad and we know they work with the apps below.

In theory they should work with any virtual knob on any capacitive touchscreen device. We’re contacting as many app developers as possible to make Tuna Knobs guaranteed fully compatible with all music apps. 

In order to explain how we got to this design, we must first introduce the team behind Tuna Knobs:

Samuel: “I have always loved making music and DJ’ing, but I was always bound to my gear at home. When a colleague saw me going through all the NAMM 2014 news, he stated that he knew some great iPad apps for making music. I checked them out and realized that I had missed one of the biggest new pieces of music hardware in the past years: the iPad. Powerful, versatile and mobile, it was already well on its way to changing the music world. But playing around with apps like TouchOSC and Korg iElectribe I felt something was missing. I wanted more precise control. I wanted knobs. So that’s the idea I pitched for Tweetonig and they loved it.”

John: "When Samuel pitched his idea, during his internship at our design office, we were on board immediately. It is a simple, clean and very natural solution. We contributed a lot on the technical side of the story. Since our studio has an strong focus on mass producing this comes natural to us. We identified all the problems and started to test them one by one. The biggest challenge was to find a nice feeling conductive rubber. But after many, many, samples from our trusted suppliers we found the perfect blend rubber for this project. All we need now is your help to finance the mold, we got everything else covered! Let's turn some knobs!"

So here is what we did to get to the Tuna Knob:

Every project starts on paper and sketching is a great way to get weird and wonderful before getting into the serious engineering bit. Sketching also allowed us to identify some key shapes and constraints.

With one knob taking less than 30 minutes to print, we were able to test a plethora of shapes and sizes to get to a point where all dimensions are just perfect.

Because we are working with a complex material like conductive rubber, we tested the response of various touchscreen devices to a bunch of conductive materials to make sure we are using just the right material.

When we were sure we had the right shape, dimensions and materials we were ready to make some first models with all the details right. The design of the Tuna Knob is now finalized and we are ready to start chugging these badboys out by the thousands.  

This is where we need you!

With the design finished, the next step is investing in injection molding tooling to produce Tuna Knobs fast and efficiently at a price everyone will smile about. We need your support and we need your orders, and if you like us enough to give us one or both of those, then we can make Tuna Knobs a reality for everyone!

As soon as we are funded we are ready start manufacturing the injection mold. This will take 8 weeks after which we can tweak the materials and the manufacturing process to optimize the product, which will take two weeks. After that we can start up the Tuna Knobs factory and produce these by the thousands. Our first batch of production will be assembled and shipped in the third week of November, comfortably ahead of the holiday season.

So what's in it for you, you're asking? Well this:

Yes, we're kind of crazy. The Super-Duper-Early-Bird € 1 Special Pledge was a way to separate the early birds from those that never went to sleep and they were gone in 5 minutes! Because we noticed a lot of you pledged for amount that could buy you 4 or 8 knobs, we added these tiers to our pledges.

After the first week we teamed up with Stagetaken.com to give MiDi template for your app on your tablet for free with every knob we will deliver! Awesome! 

Want to show off that you're a true Tuna Lover? Get the Tuna FANBOY PACK, which includes a set of 10 Tuna Knobs from the very first batch, an exclusive Tuna T-Shirt, a artifact (prototype or drawing) from the design process, 2 carrying pouches, Tuna stickers and a signed polaroid of the Tuna Team packing your pledge. 

But there is more. We added some nice stretch goals: 

So let's say you pledged. How do you use Tuna Knobs? Well, like this:

Simple enough right? I bet you know what to do. Go get yourself some Tuna Knobs.

Special thanks to Ruben Verburg for shooting and editing our video.

Risks and challenges

When taking a product to mass production certain problems will always arise. That is the main reason I teamed up with a professional industrial design company from the start of the development. They have done this numerous time before and know mass production.

To eliminate all risks we will produce and assemble in the Netherlands with a trusted mold maker who we know from previous projects. This way we can communicate directly and can be involved in every step of the process.
Another risk is the touch sensitivity. Since we don't want to use toxic plastics like silicone we designed the product to use a nice soft TPE rubber. This is normally non-conductive but we will work with a special blend so that we have this unique one of a kind soft touch conductive rubber. During the prototype phase we tested this material intensively, but slight changes can present them self during the final production. We will watch this process closely and work in close harmony with the manufacturer of this specific rubber to ensure proper working knobs!

Learn about accountability on Kickstarter

FAQ

  • Yes! First off all congrats for getting your hands on a Tuna Knob so quickly. You can always raise your pledge amount (or come back later and click on the “manage my pledge”button). Raise it by the amount of one of the regular pledges (sorry no other early birds) to add that pledge to your total. That's it! After the campaign we’ll send you a survey in which we will sort out how many Tuna Knobs we owe you.

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  • Yes! Isn't that great? Add as many as you like!

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  • As for modern tablet and smartphone touchscreens, yes. Tuna Knobs work by redirecting the electric charge of your hands to the right spot on the screen, meaning only capacitive touchscreens will detect them. This includes all iOS, Android and Windows devices. It does however not include resistive touchscreens like the Nintendo 3DS, or rear projection touchscreens like the ReacTable.

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  • Many of you asked us whether we would extend the idea behind Tuna Knobs to other music hardware like faders, jogwheels and beatpads. We’ve asked ourselves the same question and we are seriously considering it. However, in this Kickstarter project we want to keep our focus on getting the Tuna Knobs absolutely right. So do not expect faders or pads as stretch goals in this project. If we’re going to make more controls for touchscreens we want to give them the full-fledged design process they deserve instead of hastily adding them to this campaign. But chances are very likely there will be more Tuna DJ Gear in the future. Backers will off course be the first to know.

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  • Tuna Knobs redirect the electric charge from your hand to your screen and places it at a fixed distance from the axis. We have the technical footprint over here (http://www.tunadjgear.com/wp-content/uploads/2014/07/Software_Signal_Explanation.jpg) . Any software that wants to be compatible with Tuna Knobs should anticipate a circular signal at this radius. If you are still not sure how to make your app Tuna Knob compatible, check out the apps that already work with Tuna Knobs to see how they do it.

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  • After our Kickstarter campaign we’re not really keen on distributing Tuna Knobs ourselves so distributors and resellers are very welcome to contact us at distributors@tunadjgear.com. We will be getting in contact with you towards the end of the campaign when we have more time to figure how that would work.

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Rewards

  • You selected
    Pledge €1 or more

    50 backers All gone!

    Super-duper-early-bird-give-away
    One of the very first Tuna knobs. Only one per person. World wide shipping included. Just to say thanks for being here when it all started!
    Want to have more than one? See the FAQ on how to get some!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €2 or more

    5 backers

    Stickerrrrrrs

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €9 or more

    100 backers All gone!

    TUNA KNOB (1) EARLY BIRD ! - Almost the cheapest way in! Only 100 options to get your TUNA KNOB under 10 EURO's! You get 1 (one) Tuna Knob and a Tuna sticker to show of. Want to have more than one? See the FAQ on how to get some!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €11 or more

    14 backers

    TUNA KNOB ! - You get 1 (one) Tuna Knob and a Tuna sticker to show off how awesome you are.

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €26 or more

    100 backers All gone!

    TUNA KNOBS (3) EARLY BIRD - You got here early and that makes you extra cool. The first 100 backers get 3 Tuna Knobs, a Tuna carrying pouch for storing your knobs and a Tuna Sticker to show off. Want to have more than 3 knobs? See the FAQ on how to get some!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €33 or more

    89 backers

    TUNA KNOBS (3) super deal! - Get 3 (three!) Tuna Knobs. PLUS You get a Tuna carrying pouch! Heck we throw in a sticker as well!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €44 or more

    41 backers

    TUNA KNOBS (4) super deal! - Get 4 (four!) Tuna Knobs. PLUS You get a Tuna carrying pouch! Heck we throw in a sticker as well!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €49 or more

    100 backers All gone!

    TUNA KNOBS (6) EARLY BIRD - You got here early and that makes you extra cool. The first 100 backers get 6 Tuna Knobs + Tuna carrying pouch + 3 Tuna stickers!!
    Want to have more than 6? See the FAQ on how to get some!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €59 or more

    70 backers

    TUNA KNOBs (6) pro - You sure like to twiddle a lot of knobs! Take control over two decks with six knobs! You get 6 Tuna Knobs + Tuna carrying pouch + 3 Tuna stickers!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €79 or more

    12 backers

    TUNA KNOBS (8) pro - You sure like to twiddle a lot of knobs! Take control over two decks with eight knobs! You get 8 Tuna Knobs + Tuna carrying pouch + 3 Tuna stickers!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €85 or more

    74 backers

    TUNA KNOBBIN' (10) - Take control over your touchscreen and show who is boss. Order the Knob for the same price per knob as all those early birds.
    Only you get 10 (ten!) (one for each finger!) Tuna Knobs + 2 Tuna carrying pouches + Tuna stickers.
    Order multiple times to save on shipping!

    Estimated delivery:
    Ships anywhere in the world
  • You selected
    Pledge €190 or more

    7 backers Limited (43 left of 50)

    TUNA 4 LIFE! -Get more and faster! You will recieve 10 Tuna Knobs of the first production run (a couple of weeks before the rest) + carrying pouches + stickers + T-shirt + Signed Polaroid photo of the crew assembling your package + a mystery artifact from the design phase of the tuna knob!

    Estimated delivery:
    Ships anywhere in the world

Funding period

- (30 days)