The Home Machinist!

Is it the bar ringing, or the part?

Looks like quite a bit of stickout there. I try to minimize the radial stickout of the cutter so as to minimize the torque on the bar.

Glenn writes:
>Sharp corner cold rolled steel seems to be the standard cold rolled forms of angle.

The drawing does not show a sharp corner on the cold-rolled.

Why does it have to be cold-rolled, though?

Thank you Pete for your explanation. Are you saying that if I get a reading of .355", that the piece could actually be .354 or .356. With a recently calibrated high quality instrument (I wish I had such a thing) it means that the piece is between .354 and .356 . The rule of thumb I learned (I ...

"White gas" is gasoline. I use it, but only outdoors, working on the ground.

Acetone works well (keep it away from paint and plastics) but it is nearly as dangerous as gasoline.

But really bright light will make your pupils constrict. So what does this stuff do that a really bright reading light won't?

Constriction of the pupils will also tend to make it hard to see in anything but bright light.

The wiring is pretty bad, but that could easily be fixed.

liveaboard writes: A trick for people without the means to cut keyway grooves; Drill a hole along the shaft and hub, basically creating a round keyhole. Tap it. Then you can put your grub screw in, but the entire length with be on shear. This is referred to as a "Dutchman" for some obscure...

I agree with Bill. It's probably easily repairable.

Pack the hole with grease plus something such as string that you can pull out later. This is to keep swarf out of the hole. Install the sleeve. Grind a hole in the sleeve with a die grinder. Fish out the packing and the swarf with it.

The sleeves I've used aren't very hard but I've never tried to put a hole in one.