Like just about everyone else out there, [Adam] thinks that CNC machines are pretty cool – so cool that he decided to build one of his own from scratch.
The CNC machine was constructed mostly out of MDF and scrap wood, with drawer slides used for smooth gantry movement. An off-brand rotary tool was used to do the actual cutting, and [Adam] picked up a few Sparkfun stepper motors to drive the machine.
The assembly was completed without too much trouble, but [Adam] says that programming the mill was a long and frustrating process. Cutting was rough and not very accurate at first, but little by little he got things working pretty well. As you can see in the video below, while the cuts look great, improvement came at the expense of speed. He says that the machine could use a redesign to speed it up, which he’ll get around to if some free time comes his way.
It’s not the absolute cheapest CNC build we’ve seen, it’s pretty darn close. With a few tweaks, it could definitely be a solid budget-friendly contender.
Continue reading “$150 CNC mill is a tad slow but very solid”
A common complaints of beginners to microcontroller programming is the availability of DIY tools that do not require a parallel port. Using not much more than a couple of 74xx series chips and some protoboard, [Rue] was able to create an AVR programmer for less than the cost of some chips it can program – giving parallel programmers a run for thier money. [Rue] used Linux treat the ubiquitous PATA/IDE port as a parallel port. By having avrdude treat the programmer as an Atmel STK200, [Rue] was able to upload a blinky program to his AVR microcontroller through ISP. If anybody can think of an even lower cost unconventional solution give us a shout.
[Andrew] tipped us off about his Cable Cam built out of some lumber and clothes line. It is small enough to fit into a backpack, includes a safety line and the camera can pan and tilt. A future version is planned with a small remote motor to move the trolley more effectively.
[Andrew] accidentally linked us to his other Camera Crane, taking the same ‘cheap yet effective’ approach as his Cable Cam. Once again, just some lumber and creative engineering are used to pull this one off.
For those without the ability to weld, check out [Bill Van Loo’s] all wood version of a Camera Crane. Same parallelogram design, without remote video output or central pivot.
[AntonB] has modified a servo into a powerful linear actuator (think: changing rotational motion into linear motion). The process is simple enough, modify a servo for continuous rotation and then add the custom built actuating shaft. You do of course lose the precision of the servo, but a small price to pay to be able to lift ~20 pounds straight up. Inspiration for such a cheap solution came from his Planetary Surface Exploration Rover. Check out a video of both after the break.
Continue reading “Servo hacked linear actuator”
[YB2Normal] has updated his steadicam 5 times! For those that remember the original, it allowed indie film makers to create smooth and steady video. Version 2 implemented a new gimbal based on a throttle linkage in cars. Version 3 allowed the user to easily adjust angles and weights to prevent accidentally knocking the assembly. Version 4 seems to have disappeared. And finally, version 5 updates the gimbal again using a Traxxas U-joint and redistributes the weight. What should come next? We think a handle, holding onto a threaded bolt can’t be good for your hands.
We’ve covered almost every way possible to remotely control a camera setup, from lasers, to Lego, to doorbells, and even having a Nintendo DS run the show. But at the end of the day, what if you want something that’s small, simple, has amazing flexibility for future additions, and most importantly doesn’t take away your favorite game system. [Whiternoise] wrote up an extremely detailed guide on getting an AVR to control your camera. We like the clean look the final product has, and the large amount of possible add-ons is a major plus. What do you look for in a cheap multi-function wireless camera controller?
[Jake] never ceases to amaze with his inventions, from his Powered respirator to his Steampunk LCD and more. Today he proves that not every hack has to be an amazing one requiring hundreds of hours, tons of soldering, and an Arduino. Instead, he was tired of being charged $50 for a $5 cabin air filter. With a quick squeeze he had access to the filter bay. It was only a matter of finding a similar filter at a home improvement store and then using a scrap wood jig, he could cut and glue his own filter. It’s stuff like this that tends to make us think, what else are we getting ripped off on?