Which Form 8854 Filers 2023-2024

G'day chris here and welcome back to clickspring it's a tool that we reach for in the shop without a second thought yet the common hand file is so old that its origins are essentially unknown and it was almost certainly one of the key tools used to make the Antikythera mechanism for filing squares and perimeters and most importantly for forming those incredible teeth so in this video I'm going to hand cut a set of precision files suitable for constructing the mechanism using the materials and methods as close as I can get them to those at the period the Greek civilization was well into the iron age at the time of the devices creation the question of steel availability is not easily answered certainly there was a form of crucible steel known as woods from the region we now call India but there was also the technique known as case hardening which essentially converts the surface of an iron object into steel and tool artifacts recovered from the period suggest that this second option is the most likely of the two now I don't have any true wrought iron but I do have this low-carbon mild steel which is fairly close it has too little carbon to be quench hardened and it's soft enough to still be worked in a similar way to ancient wrought iron so for the purpose of this exercise I think it's a reasonable substitute the first step is to take this raw stock and shape the basic file blanks in recent history this job was done on a massive grinding wheel and although it would have caused something much slower and less convenience similar hand powered abrasive tools and knowledge of existed in antiquity Music the surfaces of the blanks are now...