Andrew Terranova

Andrew Terranova

Andrew Terranova is an electrical engineer, writer and an electronics and robotics hobbyist. He is an active member of the Let's Make Robots community, and handles public relations for the site. Andrew has created and curated robotics exhibits for the Children's Museum of Somerset County, NJ and taught robotics classes for the Kaleidoscope Learning Center in Blairstown, NJ and for a public primary school. Andrew is always looking for ways to engage makers and educators.

Latest from Andrew Terranova

Even The Hulk sometimes needs a little help... this time from hot glue.

I’ve developed a little trick for using hot glue to rescue a 3D print that is going wonky while it is in progress. Nothing replaces starting with a good model, having the right equipment, and using good practice while printing. Still, this technique has come to the rescue a few... Read more »

Wooden hydraulic arm controlled with DIY linear actuators.

Hydraulic Robots Why would you want to use hydraulics on your robot? It was good enough for the car-sized fighting robots Mark Setrakian designed for Robot Combat League, the show he helped develop for the SyFy network. I’m not suggesting you build a giant robot (although that’d be pretty cool),... Read more »

Scotch Yoke
Image by BRoys [CC BY-SA 2.5 (]

There are lots of types of actuators on robots. You know, the things that make the robot move and allow it to interact physically with the world … grippers, arms, legs, wheels, etc. Unlike wheels or servo-driven arms, linear actuators operate by pushing or pulling along a straight line. There are many... Read more »

Baymax Armor-Up toy: Ripe for hacking

There’s a long tradition of hacking toys to make robots. Why settle for what some manufacturer designed? Add a microcontroller to an R/C car and you have an instant self stopping robot car. Stick some RFID electronics in a teddy bear and suddenly it can respond to objects around it.... Read more »


A linear actuator is a mechanism that pulls or pushes a load along a straight line. Pneumatic and hydraulic pistons are examples. So are the threaded rods on 3D printers. Commercially available linear actuators can be quite expensive, but now you can build your own with just a few dollars... Read more »

solar chariot by Bob Schneeveis

Bob Schneeveis is on a mission to save the world from itself through the creation of sustainable solar vehicles. He has been building walking chariots and other unique conveyances since a knee injury got him interested in the structure of the knee and the mechanics of walking. For over 30... Read more »