Adding Compact Flash To An Old Sequencer

June 5, 2010 by Mike Szczys 32 Comments

[Shoji] has a beloved sequencer that went out of production ten years ago. Unfortunately the storage options are also 10 year out-of-date as SCSI is the stock option for storing his loops. Using a series of adapters he added Compact Flash storage to his Akai MPC-2000 Classic. The board has a connector for 25-pin SCSI which he wired to a 25-pin to 50-pin SCSI adapter. From there he connects a SCSI to IDE board, and then an IDE to CF. Subsequent versions of the Akai Classic have floppy drives in the front left corner so he used this method to mount he CF slot. Now he’s got plenty of storage with very little change to the appearance of the looper.

3D Printed MakerBot

June 5, 2010 by Devlin Thyne 12 Comments

[Webca] has made a 3D printed MakerBot with his MakerBot. Using five pounds of plastic, the design replaces all of the plywood used to create a regular MakerBot. This complements the existing designs for the 3D printed extruders, dinos, and other parts already on Thingiverse. An interesting mile marker in the history of 3D printing. We might make one after we make a Mendel and tons of Hack a Day Badges. We also look forward to improvements people will contribute to the design such as using less plastic or a parameterized design to make a really big (or small) MakerBot.

BP Oil Blunders

June 5, 2010 by Jakob Griffith 255 Comments

We received a very interesting “hack” today from our good friend [Jonny Dryer] that really got us thinking, but first a little background.

For those that live only inside of a box on top of a mountain (we know who you are), there was an explosion of a British Petroleum oil rig about 40 miles southeast of Venice, LA. Being proclaimed by Carol Browner as “probably the biggest environmental disaster” – stated a month after the accident.

And the oil is still spewing. Now, we’re not ones for criticizing how this event is being handled; no, we left it to the experts.

Back to our point, [Jonny Dryer’s] sent us his plan for slowing the oil spill, by using liquid nitrogen, pretty genius if you ask us. And we were wondering what possible solutions other readers had come up with? Share your thoughts on this situation in the comments.

Motorcycle Current Gear Indicator

June 4, 2010 by Mike Szczys 42 Comments

[Vassilis Papanikolaou] just finished building a gear indicator for a motorcycle. This quite a simple implementation compared to some of the other vehicle information displays we’ve taken a look at. You should be able to build and install your own without breaking the bank. An ATtiny25 microcontroller reads data from a couple of hall effect sensors and the neutral switch, then displays the current gear on a 7-segment display.

There’s a magnet on the shifter and two hall effect sensors at the position for ‘gear up’ and ‘gear down’ shifting. The AVR chip keeps track of these and even stores the last position in EEPROM when you shut the bike off. If the device somehow gets off track, it will automatically recalibrate itself next time you shift into neutral, thanks to the bike’s neutral sensor switch.

1000W Induction Heater

June 4, 2010 by Mike Szczys 63 Comments

[Tim Williams] likes to heat things up with this induction heater he built. At peak it can use 1000W and as you can see in the video, that’s more than enough power to heat, burn, and melt a plethora of different objects. The case design uses a center divider to isolate switching noise from the magnetic field with the whole unit housed in aluminum because it won’t heat up from stray magnetic fields. He’s selling plans and kits in case you want one, but we just don’t know what we’d use it for.

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Superprobe

June 4, 2010 by Mike Szczys 30 Comments

The Superprobe is a logic analyzer, multimeter, and much more rolled into a fun to build project. [Ben Ryves] didn’t come up with the original idea, but he definitely took a good thing and made it better. You can use it to test logic, inject logic into a circuit, read capacitors and resistors, test frequency, read the device address from 1-wire devices, and more. Interchangeable probes, choice of internal or external power, simple two-button operation, and a powerful PIC microcontroller at the heart of it all make this a fantastic tool for your electronics workbench. Check out the quality video after the break that [Ben] put together to show off the results of his tinkering.

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Printing With Pressure

June 4, 2010 by Mike Szczys 17 Comments

The video of [Thibault Brevet’s] printer makes it look like he’s actually designed a vinyl cutter (watch it after the break). But at the end of the printing process you see that the top layer was actually a piece of carbon copy paper and the magic was happening underneath. The print head applies enough pressure to transfer the blue-ish printing ink onto the paper giving the result seen above. He’s driving this with an Arduino and feeding data using Processing.

[Thibault] left this link in the comments from the LEGO printer post. Shame on him for not tipping us off as soon as he posted info on this hack. Don’t underestimate yourselves, if you hack it we want to hear about it!

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