This week on Maker Update, an Alexa-powered L3 droid, a pedal-powered art machine, a robot snake, robot bread, an FPV rover, last call for cocktail robots, and creative clamping techniques.

We’re going to take a quick look at three very different options in portable soldering irons. The point here is really just to give you a demo of each on the same table and you can draw your own conclusions on what might work best for you. 

Heat Shrink! This week, for my one-minute tool review brought to you by the Cools Tools blog at cool-tools.org, I’m going to show off this $6 assortment of color coded heat shrink tubing I found on Amazon.

This is the Hakko FX-901 portable soldering iron (available on Amazon: http://amzn.to/2sh7g0t). It runs off 4 AA batteries that you can swap out really fast with this removable cartridge design. I use rechargeables in mine and I get over an hour of use out of it before I notice the temperature drops. Alkaline batteries will run hotter, but not last as long.

This Bernz-O-Matic Micro Flame Torch kit sells for $30 (here it is on Amazon), which isn’t cheap for a butane torch, but let me show you why this one is special.

This week on Maker Update, a servo robot puppet, Raspbian moves to Stretch, a YouTube Live camera, giant gold bricks, trauma shears, and pouring your own knobs. This week’s Cool Tool is a pair of Fluoride Coated Medical Shears.

This week on Maker Update, acoustic levitation, an Arduino made by Sony, a new kit by Anouk Wipprecht, self-centering drill bits, and a turning old monitors into a video wall. This week’s Cool Tool is a self-centering drill bit set.

This week on Maker Update, designing your own bobblehead, a new trick for your Raspberry Pi, what’s so great about deburring tools, McMaster Carr meets Tinkercad, and a roundup of 3D printed Pi cases. This week’s Cool Tool is the General Tools 481 Swivel Head Deburring Tool.

This week on Maker Update, punch-activated flame throwers, interactive laser curtains, Massimo takes back Arduino, some time with a deluxe center punch, 3-color OLED screens, MagPi 60, and the Gemma M0. This week’s Cool Tool is the Rennsteig Adjustable Automatic Center Punch.

This week on Maker Update, an Xbox exercise bike, losing WD Labs and Arduino 101, printing butterflies, a $14 super power, and marking your tools. This week’s Cool Tool is wearable magnifying glasses.