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General control line discussion => Open Forum => Topic started by: Stephen Jeansonne on January 30, 2014, 03:19:05 PM

Title: Hotwire Foam Cutter Pwr Supply
Post by: Stephen Jeansonne on January 30, 2014, 03:19:05 PM

I built a new power supply to cut foam wings.  Check it out.
--Stephen

Title: Re: Hotwire Foam Cutter Pwr Supply
Post by: Steven Kientz on January 30, 2014, 03:22:44 PM

Nice work!!
Steve

Title: Re: Hotwire Foam Cutter Pwr Supply
Post by: KenP51 on January 30, 2014, 04:29:06 PM

That's cool

I made one using a dimmer a long time ago without the step down transformer. It worked .. but.......was not safe and could easily over voltage a wire at turn on resulting in a dangerous situation. I replaced that with an auto transformer. But that has all of the issues of the dimmer.

I did not know step down transformers were that cheap. Next use I will put one in the circuit.

Ken

Title: Re: Hotwire Foam Cutter Pwr Supply
Post by: john vlna on January 30, 2014, 07:14:54 PM

very nice, I've been wanting to start cutting some foam, looks like I'll have to build this.

Title: Re: Hotwire Foam Cutter Pwr Supply
Post by: Paul Taylor on January 31, 2014, 09:39:15 PM

I still use a old Sears battery charger. I have also use a old laptop brick power supply. Worked well.