$50k In Play: 20 Bulbdial Clock Kits

For this week we’re veering away from our habit of giving away things to help with your build and giving away something fun. 20 Hackaday Prize entries will receive a Bulbdial Clock kit. Getting into the running is easy, start your project on Hackaday.io and make sure you officially submit it to the Hackaday Prize. Get it in by next Wednesday to be considered for this week’s prizes, and you’ll also be in the running each week after that as we work our way through $50,000 in prizes this summer before giving away the big stuff like a Trip into Space and $100,000 in cash.

The Bulbdial Clock has been a favorite of ours for years. Developed by Hackaday Prize Judges [Windell] and [Lenore] at Evil Mad Scientist Labs, it uses three rings of colored LEDs to cast shadows as clock hands. It’s a fun solder kit that will take time to assemble. In keeping with that ideal, your best bet at scoring one this week is to post a new project log showing off the solder work you’ve done on your prototype. If you don’t have one soldered yet, that’s okay too. Just post a new project log that talks about the component assembly you’ll be working on. This would be a great time to finally draw up a basic schematic, right?

Last Week’s 40 Winners of $50 Shapeways Gift Cards

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Congratulations to these 40 projects who were selected as winners from last week. You will receive a $50 gift card from Shapeways so that you can get your custom parts 3D printed. We were on the lookout for projects that we thought would benefit most from custom parts. Some of these are far along in their development, some have just started, but all of them are awesome so browse the list and make sure to skull and follow the ones you like!

Each project creator will find info on redeeming their prize as a message on Hackaday.io.


The 2015 Hackaday Prize is sponsored by:

New To The Store: Bulbdial Clock And Free Shipping Option

New to the Hackaday Store today is the Bulbdial Clock by Evil Mad Scientist Laboratories. I’ve had my eye on this kit for years and finally pulled the trigger after visiting [Lenore] and [Windell] at their shop a few weeks back. Assembling the beautifully-engineered kit was a delight, and I have a handful of hacks I’d like to try out — some of which I mentioned in the product description.

Free shipping based on order price

We always listen to what the Hackaday community has to say. After receiving several requests for better international shipping prices we came up with a way to ease the pain for orders no matter where they are headed. All domestic orders totaling $25 or more now receive free shipping. All international orders totaling $50 or more now receive free shipping.

Is there anything else you’d like to see different about the store? How about a hackable product you think we should stock? We’re listening via the store contact form.

Prototyping The Bulbdial Clock

Evil Mad Scientist posted a story about what went into developing the Bulbdial clock. We think the Bulbdial is one of the best pieces of kit out there for many reasons; using colored shadows for each hand is a brilliant idea, the design is clever and uses a low parts count, and the concentric rings that make it work also add to the aesthetic. But after seeing the original wood prototype it had crossed our minds that developing those circular PCBs isn’t the easiest thing to pull off. To save on board cost, the first run didn’t have the center routed out, but rather used almost-touching holes drilled during manufacture and finished by hand during assembly. They also go on to discuss the use of Charlieplexing to reduce part count and the search for a suitable diffuser for the clock face.

Making The Bulbdial Clock Touch Sensitive

We never thought about it before, but having the controls on the bottom of a clock is a bit of an inconvenience. [Alex Whittemore] mutes the LEDs on his clock each night and after a while, decided he should make the mute button into a touch strip on the case. You’ll remember that the Bulbdial clock uses colored LEDs to create the effect of a sun-dial, casting colored shadows for each hand of the clock. It makes sense that this would put off a pretty good amount of light at night. [Alex’s] original thought was to use a capacitive touch sensor but complexity and cost were in his way. What he ended up with is a resistive touch switch based off of two metal strips. He used metal repair tape but suggests copper foil as he was unable to solder to tape. When your finger touches the two strips it completes the circuit for the base of a transistor, which in turn grounds the mute button on the clock. Cheap, simple, and illustrated in the video after the break.

Continue reading “Making The Bulbdial Clock Touch Sensitive”

Bulbdial Clock Kit Released

Evil Mad Scientist Laboratories has just released a Bulbdial clock kit. This has come a long way since their first prototype, featuring three PCBs to carry the 72 charlieplexed LEDs. For accuracy they’ve included an optional header for a ChronoDot precision RTC.

With a great looking face and laser-cut acrylic case available, this may soon adorn our mantle. Time to write that letter to Santa…

Update: [Windell] of EvilMadScientist.com posted some video of the clock in action.  We’ve embedded it after the break.

Continue reading “Bulbdial Clock Kit Released”

Bulbdial Redux

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[Taufeeq] sent in his “Circle of Light” bulbdial clock. You may remember when we showed you Evil Mad Scientist’s version a while back, and [Taufeeq] did use it as a base but he’s added some of his own little touches. Some of the changes include using a PIC with an RTC chip instead of AVR, which allowed him to shrink the board down small enough to fit behind the clock face, rather than on front. He’s even zipped everything up conveniently to help you build your own.

The Bulbdial Clock Comes To Life

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Evil Mad Scientist Laboratories has built the bulbdial clock, an idea originated by Ironic Sans.  It’s basically a high definition indoor sundial. The LEDs arranged in a circle shine a light on the peg in the middle casting a shadow, just like a sundial. There are 3 colors of rings, allowing for hour, minute, and second shadows. This isn’t the first time that Ironic Sans has seen ideas come to reality. There were the pre pixelated reality show clothes and the sneaky histogram hidden message system. While it is a cute idea, it isn’t really new. People have been patenting this idea for a while.