DIY Plunge Foam heat wire cutting

[magicniner]

Boyan,
Silver Solder a collar near to the top of the needle, use a fitting like a hollow brake pipe nut to clamp the collar into the mounting block whilst allowing the top of the needle and wire to show above the nut.
Silver solder a small block to the top of the wire, power can then be connected quickly and the tips can be swapped out quickly and easily,
Regards,
Nick

It's not an idea, more of a design description, with the right implementation it will definitely work ;-)

[Boyan Silyavski]

Meanwhile here is a LOW FI/ i broke my edge 7/ video of my new contraption, while i am waiting for the needles and stuff. it could cut 1200x600mm foam sheets. ceramic contact block, isolated by silicone pad, 0.5?? mm mig wire , 2 old pc fans and 25x25mm steel profile . 700mm deep. Could cut 200mm thick foam
300 mm/ min cut , radiation cutting, no pushing the wire