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Modifying the SIP Migmate 150 DP Gas/Gasless Mig Welder 21 Oct 2009 | 06:57 am
I recently bought a SIP Migmate 150 DP gas/gasless welder, and as my first project using it I started building a cart for my welder. But when I started welding I was puzzled by the bad results I got. ...
Simple webshop added 29 Jun 2009 | 08:57 am
As I have had quite a few requests from people that want to buy PCBs for my stepper motor driver design, I have added a simple webshop solution. In addition to the PCB I have a few other components fo...
Connecting the stepper drivers and configuring the CNC software 13 Jan 2009 | 08:52 am
I have just finished an update of my sherline CNC mill article describing how to connect my stepper motor drivers to the motors and a computer, and configure the EMC2 CNC software for using them. Cli...
Changing the output voltage of a toroidal transformer 5 Dec 2008 | 08:50 am
For my CNC project i originally intended using my converted PC power supply for powering the stepper motor drivers. However when testing the CNC mill I soon found that applying higher voltage signific...
Debugging and repairing the Roomba 9 Oct 2008 | 03:15 am
After short time my Roomba would no longer dock correctly. It tried docking but did not seem to detect the docking station/home base. However when plugging the charger directly into the Roomba it char...
Digital servo goes DIY 8 Oct 2008 | 12:00 pm
RC servos have for a long time been the component of choice for robotics animation. They are relatively cheap, offers good torque/current relationship, and are easy to control. Applying a digital puls...
The Torque Approximator (measuring lead screw torque) 22 Sep 2008 | 04:10 am
For my next CNC build I am going to make a PCB router, based upon a Proxxon KT70 compound table, and a dremel rotary tool. I need to ensure that the steppers I select do have enough torque to turn th...
The boards are back in town.... 17 Sep 2008 | 06:19 am
My new stepper motor driver PCBs have finally arrived. I will soon have them assembled and ready for test. My main concern is whether or not I will be able to run them without a heatsink attached. Th...
DIY microstepping motor driver 7 Aug 2008 | 12:52 pm
With the introduction of the A3977, and now recently the upgraded version, A3979, Allegro microsystems have made stepper motor driver design a simple task. The A3979 is a complete stepper motor drive...
DIY SMT soldering using standard equipment 23 Jul 2008 | 07:41 am
Here I will show you some techniques for soldering very small, fine pitch SMT packages using standard soldering equipment. These techniques will help you to master the SMT soldering skills needed for...
