[Augusto Boer Bront]

What do you use to leave open your klappvisor?
Possibly with pics, thanks.

Augusto

[Sam Gordon Campbell]

Well, I believe some use a sort of leather strap that goes around the helmet to keep it both open and closed, whilst I'm sure others just have a very good visor hinge that allows it to smoothly open and close, and if your helmet slopes enough maybe gravity and geometry will do the work for you.
However I do think that trying to 'keep' a visor open is rather difficult without a modern modification, as often you see in iconography people holding their visor open, or simply removing their helm entirely.

[Kel Rekuta]

The hinge is the key element. Too many modern repros have hinges cut like modern door hinge plates - parallel edges in the gap. If your smith files it with a tiny bevel from outside to inside on each plate, lifting the visor will fix it in place somewhat. A minor step - like a "Z" in each plate, mirroring one another - allows it to stay a bit easier. That is tricky stuff from clockwork and frankly, not seen on period examples. Mine fits by friction and drops into place with a quick nod. I would - absolutely NOT trust it to keep the visor down in close play with thrusts. I usually have the visor strapped down for anything other than demos.

Hope that helps.