The Home Machinist!

I have made a couple of tailstock spindles. Not difficult, what dia. Pitch, acme or 60 degree is the thread.

A standard Hardinge collet is concentric within .001". That works for most uses, but for some work that is more precise, they make extra precise that is .00025" max run out. So you take a std collet to use as a Arbor, and a TGP bar, square them on the grinding Chuck. With both blocks using...

I have a good surface grinder. My question is what are you wanting as end result. To get each centerline of collet bore equal to each surface (4 sides, 6 sides)but equal to each other will really add to setup and grinding time. And what is your tolerance allowed? And why do you need it?? If you are ...

What scale? 1.5: 12, Or1 : 12

What about the baker valve gear is superior to the wals. Setup?
Tom

After the toxic derailment in Ohio. A report was published that mention overheated bearing boxes. First report to train conducted was at 150 degrees, then 250, then 450. Then came the derailment. The article stated that above 400 the train was required to stop. Appears that was not done, or quickly....

Adjustable flow control valve is the ticket. The best control is a variable flow hydraulic pump, motor.
The type used on zero pivot mowers. They a pump and motor in a single bolt onto the engine. You need to match the pump HP to the engine HP.

Not very expensive, 4-500. Made in China .

Second the ball end mill. If the tap protrudes at all above the surface, here's the way I have done a few times, 100% success. Take a piece of steel scrap, drill a hole thru the size of the tap, then drill a hole say 1/4 but not thru, leaving a shoulder at the bottom. Now mig weld the hole full. If ...

I have some Parker Hannifin servos, look exactly like yours. How many wires out of the motor? 2,4, 6 +

Yeah, that steel looks old, and a bit crude. As it is past 2 g's and may need a boiler. The interest goes down quickly.

Looks nice but I am out of the bidding now.

Tom

L looking for ideas on how to best reducing the warping of the sheets.

Do you have a milling machine, that would do that kind of work easy.
Or drill four corners, cut with nibbler, might do AL that thick. Or saw of your choice.
A 40 ton IRON WORKER, would do it but the dies would be $xxxx.00