Let's Make Robots!
Complete. I am able to extrude plastic pieces as long as I have a 3D drawing of the part.
A last minute note to direct people to the other page where I showed building the NEW hot-end for this printer. http://letsmakerobots.com/node/37011 Other than … Read more
Use a microcontroller or a potentiometer to control an AC load. (Motor, high wattage Lamp, etc.)
[ This edit only adds a minor (unimportant) wording change in the very last paragraph.] Read more
This example is just one of many different ways you might give your robot a sense of touch.
Update 7AUG2013: Minor addition about the resistance (bottom of page) This example is just one of many different ways you might give your robot a sense of touch. … Read more
Maybe I should have given this a sub-title, "How to Save 40–50 Quid (give or take) by making your own."
[ This page is now complete.]   The old heating section worked well, so I've duplicated that. I start with a 3/4" (that's ~19mm for you metric users out there.) … Read more
This will be a (near) future project. I plan to finish the 3D printer before I worry about completing this plastic filament making machine, but I have a good start … Read more
Just a fun way to test yourself. This will help you know where you are lacking.
The idea is to match the statements with the appropriate drawing above. (Each drawing has a letter,) 1. Two zero pulses will make the LED light twice 2. Entering … Read more
The business end with the round heat sink is a 445 nm (blue) laser that is good up to about 2 watts maximum. I turned out the laser heat sink on my lathe. I found … Read more