[youtube=http://www.youtube.com/watch?v=NbOlG7THecM]
Thinking of buying a new bandsaw? Stop it. Make one instead. Not only could you save some money, you could customize it to be exactly what you need. There is a step by step breakdown of the entire construction with tons of great pictures. He even has some great info for general bandsaw use if you’ve already got one.
[via makezine]
[Luciano] didn’t want to drop a lot of cash into a flux and solder paste applicator so he built his own for about $5. He re-purposed a hot glue gun which you can usually find at a dollar store. After removing the heating element he inserted the body of a syringe. The plunger has been modified to use a knitting needle inside of some plastic tubing. After taking the picture above he made an improvement by adding a milliliter scale to the plunger, allowing you to meter out the paste and also gauge how much remains.
[Riley Porter] has been working on several different custom enclosure designs. Above, you can see his Proto Desk which holds a breadboard, Arduino, and has two recessed boxes with sliding tops for components and patch wires. He’s got a miniature version that gets rid of the breadboard, as well as slick-looking cases for the Bus Pirate, tinyISP, and face plates for word clocks.
Well, if you’ve got a laser cutter you should be using it right? We’ve seen [Riley’s] wares in the past; he wrote the guide for laser cutting solder stencils.
[Thanks Brian]
[youtube=http://www.youtube.com/watch?v=Jznl8U9zzKM]
Need to monitor not only if a fan is running, but if it is running fast enough? Check out this PC fan failure alarm circuit. After several failed attempts using various circuits, they settled on a Schmitt trigger. They even show a couple variations including a manual reset and a relay instead of a buzzer.
[via HackedGadgets]
At first we thought this looked hastily thrown together and quite possible useless. Then we watched the video, embedded after the break, and realized it is quite a handy bench sander. [Mhkabir] opened up an older hard drive, removed the read head, and added a piece of carefully cut sand paper. When you hook it up to your bench supply you’ve got a small sander ready to use. We can’t wait to try it on some small PCB edges. Now that we’ve seen a sander and a chop saw, we wonder what’s next?
If you find yourself in need of a precision chop saw don’t overlook the value of adding a diamond blade to a spinning HDD platter. [Tony’s] four-part writeup of this build springs out of some very special design considerations for a ham radio that operates in the 47 GHz band. That frequency pretty much rules out using normal components in the circuit and in his case it even makes connecting the components together difficult. He’s using this chop saw to cut small pieces of a ceramic substrate with gold traces on them that will be used to route the signals on the circuit.
We’ve seen hard drives used in a couple of different clocks, and even as a set of speakers. This one makes for a nice addition as a way to reuse those defunct devices that litter your junk box.
[Thanks Thomas]
Changing this 50MHz Rigol oscilloscope into its larger, more expensive brother just became quite a bit easier. When we originally looked at this hack it required pulling some capacitors off of the board. Now all it takes is three commands over a serial terminal connection.
Take a look at the walk through video after the break. You’ll see that there’s one chip that needs to be setup differently to change the functionality. Removing capacitors was actually changing the commands sent to initialize that chip at power-up. Now you can just change the model number and one letter of the serial number via a terminal and the firmware will recognize this as the more expensive DS1102E.
