Initial Machining and Spool Creation with CNC

we talked about going from starting with a bar of steel and cutting away everything that isn't camshaft the camcorder you saw actually was already through heat tree get an idea what's happened before that is you can imagine a big bar like this look at this akuma lt 300 and so when you slide the bar in you start out with the front you do the front work then you come in pull it out a little bit do all the spacing work pull out more do more spacing work then you finish up with the rear after it goes through all of that we have what we call a spool so this is a camshaft with the barrel done all the linear set but still the loads are round so around low core is full from this point the next thing happens it goes over the moorey mill over here and they go in and mill the lobes up after the lobes are milled to size for the rough size then it goes off the heat tree so if it's a 86 20 core it'll be copper plated then go to heat treat if it's tool steel it doesn't have to be plated it just goes and straight to heat treat they go and quench and temper it they bring it up to a transition temperature do a quick twin quench and then do a triple temper to bring it down the hardest range you're shooting for this is cool what era is this machine from these were made back in the 1950s so this would have been a verto cam grinder it's got a degree head that sets your angles on here so the camshaft fits in between centers depending on sitting on the steady rest here there's an index plate on the back that sets it up for each angle so if you see this pin right here you can grab that pin and change to each angle in the firing order so as they go to each lobe they'll run to the position on this on the end here you've got two you've got a stock for two masters so the master is this place that goes right on here so you have an intake and exhaust master and they go on this and there's a follow