I am in the process of putting together a Europiccola from an assortment of parts I have gathered borrowed and stolen. I have been given a heating element but there is a complication.
The pipe that screws into the bottom of the element base has been stripped and possibly the thread on the element has also been damaged. I am just wondering if anyone has any suggestions on the best way to get this joint sealed again? Is it possible to un-braze the brass nut on the end and attach a new one (if it can be found) ? I am just starting out on this rebuild and would appreciate any advice?

Hard to say what it was from the pic.. Did the entire pipe rotate to screw into the heating element?
yes, it is possible to "un-braze." the simple explanation is that brazing is high temperature soldering, usually using brass instead of a lead-tin alloy.

The solution depends on what the other end of the pipe is, how complex the pipe's bends are, and how close it has to fit. My thoughts at the moment would be to install a fitting in the heating element (possibly tapping the hole to a larger size), and using a compression style fitting, maybe like on brake lines (double or single flare).

IIRC, to bend tubing that way it is filled with a melted salt, that is allowed to harden, and the pipe then acts like a solid rod when being bent. The pipe is then heated again and the slat runs out... I think my dad who was a machinist told me that... Maybe not..

Basically, after looking at it a little closer, the fitting is pretty much a M10 (?) brass bolt with the centre drilled out and the copper pipe pushed through the hole and brazed into position. I was thinking about making a new bolt - ie drilling out a standard brass bolt, leaving enough thread to pass through the base of the element so that I could put a gasket / o ring on the inside and a brass nut as a compression fitting on the inside. The thing that all this depends on is finding the right brass bolt to start with. I measured it and it looks like either a 10mm or 9mm thread. Does anyone know for sure what this is? its the stainless Europiccola single 1000W element with the pressurestat hole (obviously).

One other thing I am hoping someone can enlighten me about:
I need to source the two gasket / spacers that go between the base and the boiler rings but I dont really want to pay for the genuine Pavoni parts as they seem a bit over priced. I was wondering what the gaskets are made of so that I might be able to source or make them locally?

Gaskets material looks like machinist cardboard stuff, you can buy different thickness/sizes at bearing supply houses, specialized hardware stores, automotive parts etc...

The flange is stainless steel the brass fitting SHOULD not have damage it
since the heating element is one of the most expensive part on those machine
I will make sure is or is not strip before attaempting a brazing' retrofit etc etc

regarding the alternative parts, well,
up to you spend time and labor to "fabricate" them or buy them already made from company like us and other vendors that keep them in stock ready to install.