double sided fsw and isf

[Boyan Silyavski]

A machine like my second build/ my current machine/ will do incremental sheet forming with small ball pointed tool given that the steel sheet / DC04 or similar <1.3mm/ is stretched in a rigid 10mm steel frame bolted to the bed and frame is filled with grease or heavy oil. In fact thats is why the second part of my table has a 70x70cm empty square
Of course that means long tool paths and nothing of a kind that you will see in 1M$ machine. I have not tested it but have designed the machine with that in mind after seeing some you tube videos where a guy does that.

But doing that both sides at same time? you will need very rigid frame with custom steel rollers or very expensive roller chain bearings. big ball screws on the Z axis and all servo driven heavily geared. Otherwise your option is to bend kitchen foil only

[magicniner]

The only way to do accurate 3D sheet forming that works with any shape is with probes on both sides, some things are possible from one side, lots of things are not.