Hackme at maker faire

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All set up at maker faire. Come on down and make some racket with Rockit and Sprockit!

Sprockit Now Available

Sprockit is now available in the HackMe Store. For now, it’s only available without the case, either as a kit or as a built synth. I’m hoping to get the case done soon, but I’m waiting on the graphic design from my better half, who has presently got her hands more than full. I will make the case design, sans graphics, available for those who will be making their own.

Wavetable Synthesis Simplified

I developed a presentation as part of my Sprockit workshop. I think it’s a pretty clear presentation of wavetable synthesis and that it clearly shows how aliasing happens and how to avoid it. I’ve often found that it is difficult to find this type of clear and simple explanation of fundamental synthesis concepts that is particularly useful for the DIY Synth community. So, click through for some learning…

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Sprockit #001


Sprockit is here. Just in time for the workshop. I built the first one of the final boards and it worked straight away. I shifted the layout to give lots of room for fingers and knobs. This layout is the cleanest to date from me. I’ve got the kits for the workshop ready to go. I’m working on some science content. Should be fun. Click through for a sample of Sprockit’s first sound.

On another note, the cases for Rockit have shipped from the laser cutter. The should be shipping next week. It’s a whole new Rockit experience when it’s got a case.
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Sprockit’s First Sample

Sprockit is about to wrap up. The final boards will be on order for the workshop early next week. Sprockit features a new 4-pole low pass filter design that you can check out in the soundcloud clip. Sprockit has quite a bit of the Rockit sound with a little something special. I’m thinking about doing Kickstarter again for Sprockit. I’ll probably start that up toward the end of this month, beginning of next.

Chicago Dorkbot Sprockit Build Scheduled and Open

I will be conducting a seminar to build the very first in the world Sprockit synths. This is open to anyone and everyone interested in building Sprockit and learning about DIY electronics and synthesizer design. It’s going to be on February 25th at 2pm at Enemy Sound on North Milwaukee. I expect the whole build will take about 4 hours. This price for the Sprockit seminar will be the once and forever lowest cost to build. So, don’t wait! Check out the details and sign up here.

Introducing Sprockit Mini-Synth

Sprockit Mini-Synth

Rockit’s getting a little brother, Sprockit. My goal with Sprockit it to take a lot of Rockit goodness and compress it down to something smaller and a bit cheaper. I’m achieving both goals by having a very dense design and by reducing some of the features. Sprockit is 4″x4″ versus Rockit’s 5.1″x8.6″, so it’s substantially smaller, like pocket sized (I would’ve called it Pockit Rockit, but there are some products out there already). There are obviously fewer knobs, LEDs, and switches. All of the control parameters are still there though and will be accessible via an external MIDI controller. The microcontroller is downsized from an ATMEGA644 to an ATMEGA328. I’m also incorporating a lot of the things that I’ve learned from doing Rockit and rolling those improvements into Sprockit. This image is my first prototype and I’m well into prototype two, which will be much improved. I’ll be doing a workshop with Dorkbot Chicago at the end of February where people can build Sprockit with me. I’ll probably do another Kickstarter project after that. I’ve learned from Rockit that I’ll need to get the case designed before I release it though. Click through for a complete feature rundown.Continue reading