The Shop > Tools
Ripper end mills
AdeV:
If I'm cutting a piece off a block or plate, using the thinner cutter leaves me more stock material to use another time. If one is pocketing, then I agree, a bigger cutter is better.
Arbalist:
Ah, I see now. I often trim stuff to size with a slitting saw, never thought of doing it with a mill.
Jonny:
--- Quote from: Arbalist on August 07, 2015, 05:54:35 AM ---rippers, both of them about 5/8" or 3/4" As they're used to remove large amounts of material what's the point of making thin ones like 10mm? Surely being ridgid is of primary importance?
--- End quote ---
It is prime importance on any machining op, think smallest have is a 10mm mostly 12 to 3/4".
Pretty good to depth of flutes 5/8" looking close on 2" depth of cut.
Decent hss cutters plough through its diameter to over that depth one pass, ie 6 dia cutting 1/4" ground stock. For every 1mm nipped off that's only 6p saving per 100mm, now I could understand if it was titaniums.
Good to know Jase might try the Premium stuff. Return favour recommend the YFT carbide direct from china at sub UK disposable hss prices.
Will_D:
--- Quote from: Jonny on August 07, 2015, 05:07:11 PM ---Return favour recommend the YFT carbide direct from china at sub UK disposable hss prices.
--- End quote ---
Thanks for the recommend! I bought some cheap carbide mills and they were HSS!
Looking on the bay I only see small size YFT end mills 1 - 4 mm or so.
Do you have any links to bigger sizes
AdeV:
--- Quote from: Jonny on August 07, 2015, 05:07:11 PM ---
For every 1mm nipped off that's only 6p saving per 100mm, now I could understand if it was titaniums.
--- End quote ---
I mostly work at weekends in my shop, so if I need a piece of metal, I have to find it in what I've already got... otherwise it doesn't get made until next week at the earliest (assuming I remember to buy more stock before Friday comes around)... but TBH I was always brought up with the mantra "waste not want not", it's amazing how many things you can get out of an odd-shaped off-cut.
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