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I have this Tippi foam cutter.

It works ok for embossing mortar lines for stone or block, but it does not get hot enough, so cutting foam mountains is painfully slow.  I bought this coping attachment which barely cut at all.

I used to own this hot wire foam factory kit.

The hot knife (left) never got hot enough to cut foam.  The sculpting tool (right) worked better than the Tippi, but it still was very slow.

Both of these systems used a wall wart power supply that couldn't provide enough wattage to do the job.  Hot Wire Foam Factory offers 3 "Pro Power Supplies" and an industrial knife as well.   I recommend that you only buy a tool with a heavy duty power supply.

Bob

@RRDOC posted:
Both of these systems used a wall wart power supply that couldn't provide enough wattage to do the job.  Hot Wire Foam Factory offers 3 "Pro Power Supplies" and an industrial knife as well.   I recommend that you only buy a tool with a heavy duty power supply.

My hot wire table P/S is a 130 Watt transformer!  No reason to power it from the anemic power supplies they provide, I just connect it to my bench train transformer and adjust the current to my liking, normally around 1.6 amps for good results.

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