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I've come to like Thanksgiving the most, simply because there's not the pressure to brave the masses and spend.
I sure wish I could spin back the hands of time and watch my gran prep the turkey. I'm especially intrigued by her petite hands...they were so strong. She didn't weigh 100 pounds...
Former 30+ year tool and die maker weighing in here...
Your best bet would be TiN (titanium nitride) coated high speed steel cutters. Carbide tooling is very brittle, and it requires an extremely rigid spindle and securely clamped part. When it comes to cutting metal, most routing tables do...
Vertical = on a car door
Horizontal = on a car hood or roof
Horizontal applications take the most abuse due to the elements, and the increased likelihood of prolonged direct exposure.
JB
I like to use poster board. An automatic center punch does wonders for your initial strike, then use a normal center punch to set your mark deeper. I like to use to use a 3/8-16 threading tap (with a pointed end) for a center punch because they're very hard. Always use a brass mallet....never...
I do the same here in the states, but I hadn't heard of Somi until you mentioned it just now. The only China import I'm aware of is UBlast, which has been received with mixed emotions among my fellow tradesmen.
It appears Somi is PVC (not rubber). PVC works very well so long as you use...
VHB in the center of the pad, then put a circle of silicone around the outer edge of the pad (but not too close to the edge). Make sure you clean / prep the metal in the vicinity of the pads.
JB
But the crazy thing is...there are still some mechanically driven / actuated machines that can run circles around CNC machines. Swiss lathes and screw machines are one good example.
JB
Oxy-fuel cutting has been around a very long time. Those old machines were essentially tracers that followed a template, which is shown on the left side of the photo. They were used heavily in the ship yards, machine building and architectural industries.
JB
I trained in a three-man tool and die shop, and I was doing things "old-school" on my apprenticeship back in '86 through '90. Our shop didn't get its first CNC until 1991, and it was only a 2-axis Bridgeport Mill retrofit.
Honestly, for the first ten years of my career (including high school...
They're not polishing bits. I"d bet the farm that they're very likely CBN cutters (cubic boron nitride). CBN is man-made, and is one step below diamond in hardness. They leave a beautiful finish.
JB
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