If I'm the JD, the saw I have now is the second one.? The first was destroyed by the delivery company, they just dropped it off the back of the truck onto the street.? The second saw cuts straight but the bearings in the idle wheel were damaged when manufactured.? I pulled the wheel, cleaned the shaft on my lathe, and put new bearings in.? No more trouble with the wheel.
The saw wouldn't cut a 3x6" metal tube, so I had to replace one jaw to make room.
Now it cuts straight and true.
We're moving soon to Russia so I've sold the larger machines like the Rong Fu milling machine with extended table and DRO.? I'll buy a ZX50C when we get to Russia.? That machine worked well since we bought it in 1993.? The reason for purchase was to build prototypes, we were paying a lot of money to a machine shop for simple things.
Next was a tabletop CNC mill for doing plastic enclosures, I have a manual press to make D cutouts and a few other shapes, but each die cost a lot of money and using it is slow and hard.? The CNC solved those problems.
The 4x6 bandsaw was because we were starting to cut larger items like the 3x6 tube and the small vertical bandsaw just wasn't good enough.
We got a 7x16 lathe for more business items, bought a better quality one and do not regret the extra money.? The only problem is I bought an aluminum QCTP for it and that was a mistake.
I've had a 230 amp welder I've had since the 1970s, sold it recently along with our MIG welder.? We'll buy a new combo MMA/MIG/TIG unit in Russia.
My wife was a welder and designer for architechtual steel long before I met her.? I married a blacksmith.? Her father did some fairly famous wrought iron work in the San Jose, California area and also made black powder rifles with my wife assisting.
So, to your question of accuracy.? I don't need super accuracy, enough so things fit together and function.? Most items don't mind +/- a few thousandths of an inch.? Something like a bearing fit I'll just do slowly so I get it right.
They need to be reliable, I'm not in business to be constantly fixing my own gear.
They need to last.? I expect machine tools to last decades, I'm still using some of my fathers machine tools from the 1950s.
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Jerry Durand, Durand Interstellar, Inc. +1 408 356-3886
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On May 22, 2020, at 23:31, Henry <rongfu@...> wrote: Hi, JD: |