Hot wire cutter amp question?

I have the Hot Wire Foam Factory table that I bought from someone really cheap.  It came with a 2A wall-wart power supply.

I actually use my 1033 bench transformer for powering it, that gives me adjustability of the voltage and heat.  For the thick 2" foam, I turn it up a bit, for the white and light stuff, I run it lower.  It works great, and the variable voltage is a real plus.

     gunrunnerjohn I guess I will wing it and try the dimmer switch and see what happens. What is the worst thing that could happen I burn down the house? Choo Choo Kenny

Burn down the house is about right.   

I hope the dimmer switch is going through a transformer, you'll be wanting pretty low voltage on something like this.  Certainly no more than around 8-9 volts.

     gunrunnerjohn The power supply is 19v 3.3amps hopefully I can control it with the dimmer switch. Choo Choo Kenny

If it's a DC supply, probably not.  If it's just a transformer, you might be able to control it, though most dimmers are for resistive loads, not inductive loads.

Let's be careful out there!

     gunrunnerjohn The power supply was from A laptop computer I bought 2 years A go. Choo Choo Kenny

That's not going to work.  The supply will do it's best to maintain it's rated voltage and then drop off.

You need a different P/S, I recommend a small PW transformer.  Even a 40-50VA one will do the trick just fine.

     gunrunnerjohn Thank you for the information I guess I will put this project on hold until I get some more money. Choo Choo Kenny