Hello everyone, Introduction: I'm currently working on a project about food growing. In order to do it I need a bench to bend plastic (acrylic) easly to make the main structure. The goal is to bend plastic and also being able to make precise curvy bends. I have seen some DIY project that propose to heat up a wire of nichrome from a batteryy/variac and other.. Here are some examples : - http://www.wa4dsy.com/robot/hot-wire-plastic-bender - http://www.instructables.com/id/How-to-build-a-Plastic-Heat-Bender/ - https://www.youtube.com/watch?v=wVEf7PfuKxo Project: Here are some picture of where the project is a this moment. Picture 1: whole structure made of agglomerated wood, aluminium beams and small other pieces. Picture 2: show hoz the structure is going to bend the plastic Picture 3: it's the area where the wire is going to stand and heat up the plastic Next: I'm novice in electronics and I need to find the best and safest solution to heat up the wire. Some possibilities: - Use a Variac : expensive but easly customable, electricity could be dangerous - Use a 12V battery 7mAh: less expensive but how long os the battery gonna last? Less dangerous with electricity as I would be playing with 12V - Use a voltage variator: look also dangerous because I would be playing with hight voltage. But cheap (http://www.befr.ebay.be/itm/REGOLATORE-DI-VELOCITA-SCR-3500W-220V-PER-MOTORI-AC-LAMPADE-DIMMER-TENSIONE-TEMP-/222057172918?hash=item33b3a38fb6%3Ag%3AkMwAAOSwMORW6-KO) What would you do? What nichrome would you use? Thanks in advance for your answer, I'm gonna give you the result as soon as possible!