DIY csCNC – 2 (Linistepper driver and testing with Bus Pirate)

Oakkar7 has a nice build log on his DIY csCNC, he writes: Since I started building DIY CNC, I checked the free, opensource motor controller. There are several alternatives. I chose linisteppr controller. – Simple and cheap (my first priority :) ) and I can source required parts locally –  microstepping, open design (Especially, it’s […]

STM32 Nucleo and DFU USB bootloading

MrMobileWill writes: Over the last few months I have been playing with the Nucleo development boards from STMicroelectronics. If you’re unfamiliar with them, they are fast, mbed and Arduino (headers) compatible. This makes it easy like an Arduino to program and use. What sets them apart is that they are 32bit and have, depending on […]

Soldering station to drive HAKKO 907 handles

Dilshan Jayakody published a new build: To keep it simple we choose LM358 dual operational amplifier IC to monitor the 907’s thermocouple and drive the TRIAC. The entire control circuit of this soldering station is powered by single rail 5V DC power supply. To drive both handle and station we use 12V-0-12V 8A step down […]

Soldering iron pulse timer for temperature control

Here’s Mike’s completed project DIY soldering iron pulse timer controller.  He wrote a post on his blog detailing its assembly: This is a follow up to a previous post on a way to get temperature control for a plug-in soldering iron without a temperature sensor. Instead of using a sensor to control the temperature, this […]

SPG8640-based crystal frequency generator

Hendrik Lipka has written up documentation on his SPG8640-based crystal frequency generator: When I needed a small frequency generator for a project several years ago, I did neither had the time nor the skills to build something like that. But I had in my parts box a nice chip that seemed perfect for a small tool – […]

3D BRD viewer, a free tool to visualize CadSoft EAGLE PCB designs in 3D

Peter of Cytec BG writes, “My idea was for pcb designers to be able to quickly, whithout too much hassle, check their board for correct footprints (especially for connectors) and collisions between components. Currently one can change soldermask colors, silkscreen layers, move and rotate components around, change component models and import step files.” For more details visit […]

MoteinoMEGA pick & place assembly

In this video Felix of LowPowerLab demonstrates a complete pick & place assembly of a MoteinoMEGA panel: The main things to take from this video are: effective CPH (components per hour) rating is affected in large by several factors like travel from pick position to placement position, travel speed, mechanical alignment in X and Y directions, […]

Automated drill press table for PCB manufacture

A DIY automated moving drill press table by Michael of Acidbourbon: When you design your PCBs with a proper CAD software (such as KICAD), you have the coordinates of all drill holes anyway, so how about making an automated moving drill press table which moves the PCB to the places where holes are desired? But calibrating […]

PCB printer

You can now print your own circuit boards.  Check out this cool Voltera, a circuit board rapid prototyping platform: Circuit Board Printer Print dual layer PCBs on FR4 with 10mil space/trace. Our 20mΩ/sq sheet resistance and conventional soldering makes prototyping a breeze Solder Paste Dispenser Forget stencils. Pop your board in and dispense solder paste onto printed […]

1clickBOM, a browser extension to quickly add components to shopping carts

Kaspar of Monostable shared this helpful purchasing tool the 1clickBOM, a browser extension to quickly add electronic components to shopping carts: 1clickBOM is purchasing tool that let’s you keep one bill of materials (BOM) for items from multiple retailers. It’s a browser extension that fills your online shopping carts for you. To add items to 1clickBOM you […]

Kicad converter for TM-240A Pick-and-Place machines

Kicad converter for TM-240A Pick-and-Place machines by Wayne and Layne: The Pick-and-Place machine needs to know where to place each part, and we have created some software to help convert the PCB design data from our favorite ECAD tool, KiCad, into the proper file format needed for these PnP machines. The documentation for this software is […]