BattleTech - The Board Game of Armored Combat

BattleTech Miniatures and Terrain => Gaming Terrain => Topic started by: mbear on 07 March 2018, 09:10:44

Title: Tiny hot wire foam cutter. Good for precision work
Post by: mbear on 07 March 2018, 09:10:44
Making a hot wire foam cutter from popsicle sticks and a battery.  https://hackaday.com/2018/02/08/build-a-tiny-hot-wire-foam-cutter/ (https://hackaday.com/2018/02/08/build-a-tiny-hot-wire-foam-cutter/)

(https://hackadaycom.files.wordpress.com/2018/02/foam-cutter-800.png?w=800)
Title: Re: Tiny hot wire foam cutter. Good for precision work
Post by: Hythos on 07 March 2018, 15:12:25
Just to note - if the connectors were positioned on the inside of the popsicle sticks, OHMs are less, and it would be .0002% more efficient (but energy would transfer into the wire, vs first having to flow through the bolt. Less likely that it'll short (heat) on the outside.)
Also, it'd be safe to put a small thumb-trigger to where it's not in an 'always closed' (on) circuit. That can be done by slipping/pivoting the contact at the top-end of the battery... but a AA battery get so hot.