Automated Bed Warmer Control for Chilly Nights

For most of the Northern Hemisphere, winter is in full swing right now. That means long, chilly nights. We assume [LC] is in one of these climes because it seems like his bed warmer wasn’t doing quite a good enough job of getting his bed up to a reasonable temperature before he climbed in. To alleviate some of his discomfort, he hacked into the control unit and added some automation.

The original controller uses a mechanical potentiometer to set the heat level. [LC] added a digital potentiometer which he can switch to in order to allow the automation (using a real-time clock to handle scheduling) to take over control of the bed warmer. This also preserves the original functionality of the controller. There is also an Arduino involved which handles the override from mechanical to digital potentiometer when a capacitive touch sensor is activated. This means that when someone attempts to take manual control of the device, the Arduino can switch the override circuit off.

There is quite a bit of detail on the project site about this hack, including the source code for the controller. [LC] also mentions that this could be interfaced to the web to allow remote control of the bed warmer. This is a great hack, and also fits into the idea of heating the person, not the room.

College Dorm Transforms into High Tech Office

College dorms are notoriously tiny; which either forces most students into a life of minimalism, or for [Thomas Hopmans], innovation to overcome the lack of square-footage.

His first step was getting a Murphy bed, which saves tons of space. But he wanted to add a few extra features to his, so instead he decided to make his own! He designed the entire thing in SolidWorks, which might seem like overkill, but he’s an Industrial Design student, and has become quite proficient in the software from his various work internships.

The bed uses pneumatic struts to make lifting and lowering the bed frame easy — the cool part is the mechanism he designed which causes his dual 28″ monitors to pop up from the desk. They’re directly coupled to the bed with a linkage which ensures they’ll never get accidentally crushed by the bed.

He admits he could have just mounted the monitors to the bottom of the bed, but that wouldn’t have been nearly as fun as this.  He estimates the total cost was around $350 for whole thing, which isn’t half bad for a bed… and a desk!

Continue reading “College Dorm Transforms into High Tech Office”

Cat palace with an automatic heat lamp

[Herpity] was getting tired of his cat manipulating him into turning on a lamp above her bed every time she wanted a nap. She likes the warmth put off by the light bulb but he knew he could do better than that so he built a bed which includes an automatic heat lamp. To help introduce her to the new enclosure he set it on the chair where she normally naps.

The bed has two parts, the lower chamber acts as the sleeping area. There is a false bottom underneath the blanket which acts a platform for the weight sensors which detect when the cat is ready for a nap. A PIC microcontroller monitors two sensors and switches on mains voltage to a heat lamp once the pre-calibrated weight threshold has been reached. The upper part of the enclosure holds all of the electronic components and makes room for the recessed light housing. [Herpity] included an exhaust fan for the upper chamber but it turns out a grating is all he needs to keep the temperature at an acceptable level.

[via Reddit]

Build a levitating bed for under $1000

Many of us have had this exact thought and wondered if it was feasible. As it turns out, you can, in fact, just buy a bunch of magnets and make a levitating bed. Those magnets need to be extremely strong, so [mememetatata] used some rather large Neodymium magnets. This frame involved some careful planning since these magnets can actually be quite dangerous if not handled properly. [mememetatata] did manage to get everything spaced correctly and now has a bed that can levitate holding up to about 250 lbs. We really want to know what it feels like. That kind of thing seems as though it would be difficult to describe.

As usual, more information might be available in the reddit thread.

[thanks poisomike87]!

Ikea wine rack originally sold as a mattress holder

[Jeremy Walworth] has been dumpster diving again. He noticed that his neighbor had a bucked of nice-looking wood out at the curb for garbage collection. He inquired about it and learned that it was an Ikea bed that had broken, and that the original hardware was still there in a separate bag. He dragged it to his lair and built this wine rack out of the parts.

The reused rails and hardware provide five shelves for the bottles. [Jeremy] wanted each vessel to stay in place if the shelf wasn’t full, so he grabbed a piece of mill work from the home store and cut dividers which were glued in place. Now he’s able to show off up to sixty bottles for just a couple of bucks in material expense.

It seems like Ikea is able to sell furniture for less than the cost of the materials sourced locally. We think this is a fantastic way to find parts for your own hacks, as the components that break can often be cut down to undamaged pieces. We also make sure to check the As-Is section on each visit for the ‘leftovers’ that are usually sold for pennies. Who know’s maybe you’ll find the parts you need to build a camera mount for documenting projects.