actually it is, its more or less what the operator thinks as long as the job is being done right, the faster you go the more mistakes can be made and if you can do the same job at a slower speed and get the same thing done with no mistakes the better off you are ty:biggrin:Irishwoodsman,
The need for speed.
Home workshop – hobby machining, enjoying it, this is our main criteria.
Harder the material – slower you will go. Bigger the dia. – slower you will go.
How fast you can go to turn a piece of 1” dia. steel, depends upon:
Your lathe.
The cutting tool.
The depth of cut.
The rate of feed.
There are others but I think these are the main ones.
Now there is no use spinning it at 2000 rpm if your lathe wants to walk across the room.:nono:
The only reason for a large depth of cut is to finish it quick, we are in no hurry, so big depths of cut are not necessary, and small depths of cut are less detrimental to your lathe.
The same applies to feed rates, but this can have a big effect on the surface finish.
Eg. That’s nice Dave – what is the fine thread for? Huh, it is supposed to be smooth!!!:biggrin:
You will need to consider the cutting tool, HSS, carbide or insert type, all have their uses, advantages and disadvantages.
This is my take – start slow and see what happens, increase the speed – see what happens, take it from there. Just take it slow and steady until you feel all is OK.
My advice is always start slow. Keep the speed down, there is little or no advantage trying for the highest speed you can get in the Home Workshop environment.
This is not the answer you probably expected, there are so many parameters involved it is near impossible to give an answer to suit all circumstances.
DaveH
plan on it lol:biggrin:
