Foam XL hot wire cutter

[Clive S]

. if i would be cutting big blocks all day i will make a cutter with 20 wires heated at once, not one wire.

Good luck with the power supply then you would need about say 36V at 100A

[Robin Hewitt]

Good luck with the power supply then you would need about say 36V at 100A

You think a minor thing a 3.6kW power supply would put Boyan off?

In my one foam cutting experience, I found I was trying to balance the wire bowing in to an arc against the width of the cut becoming uncontrollably large. It was also different depending on the material, maybe I had the wrong stuff.

[charlieuk]

im cutting 30" blocks at about 500mm/min and I would consider that still painfully slow at a guess 100mm blocks would be well over 1000mm/min

like robin has said getting the wire not to bow is the hard thing and the longer the wire the harder that is. You will also need to take into account that the wire stretches when it heats up so you will need to take this into account.