Never pressed any horns but would like to experiment. How do you first soften the horn for pressing or making circular for a round plug?
Ed thanks for your post and I won't hold that against you being from New Hartford as my wife is too.
Anyway, giving you a quick and easy answer to your 'pressing' question isn't as easy as one would think. Regarding the horn softening I use veg oil and with use of a candy thermometer I can pretty much keep the temp in the 340-350 degree area. Now as to how long to cook your horn item pretty much depends on the thickness of the horn. For sure if you're softening a horn to fit to a base plug, or a sizer, your thickness at the rim should be 1/8, or just less than that. With that dimension you're only going to 'deep fry' your horn for a few seconds at a time. I keep any eye on the the little bubbles rising all around the horn and pull the horn. With a gloved hand I squeeze and if it moves and feels soft enough I put the sizer in and set it aside to dry.
Now if you're wanting to 'press' a hunk of horn for flat pieces, like making medallions, inlays, etc you'll be entering a whole 'nuther process. And again, thickness of the pieces will dictate not only how long to 'deep fry', but how often to 'dunk' them to make sure you get a quality 'flat piece' that will stay that way. If you're trying to press something that is going from 1/8 inch at one end to about 1/4 inch or thicker at the other end you might want to spend some time 'leveling' your pieces to make the process go easier and faster.
Making them 'round' requires use of a lathe and there should be a couple of articles in the tutorial section to help you in that area.
Now that your head is swimming I better leave now and let this soak in for a bit.
Happy horning.
Gary