The Home Machinist!

That should be illegal.

I made something like that for my swinging mini-hoist. The load on the end of the arm is maximum 1,000 lb, but due to the low headroom, and therefor the very short pivot, the leverage on the bearings is rather high. I used a couple of leftover bearings I had, one is a used double row wheel bearing f...

I've only done it on a lathe; I just ignored the trig and the degrees, and set the compound slide at [in my case] 5:1 for a 10:1 taper. I did that by putting a dial gauge on it against a test bar, and counting off 10 revolutions of the compound screw; when the dial gauge showed a reading equal to 2 ...

Stolen for scrap? Large lathes can have strange economics. Large shops usually have financing and contracts, and buy new machines. Small independent shops can't house them and rarely have need of a large machine. Demand is small. I used to live in India; new shops were opening all the time, financed...

Something to remember is that most home shop compressors have unloader valves. If you use a device other than the pressure switch to stop the power, the unloader valve won't get triggered and when restarted the motor could be stalled [some will melt, ask how I know], or the belt might slip to destru...

I'm not much into making things that have no purpose; but that Russian guy sounded like he was having great fun all the way through. Yeah, using a motorized tool as a thread cutter; that's a neat idea. But he was cutting aluminum. If you want to do that with a harder material, the load on the tool m...

What you're looking for is a general use programable delay relay / time relay. Some have many functions you can select with micro-slide switches. So each time it runs the timer starts, then when the power is interrupted and starts again the time starts from the beginning. I use a couple of them for ...

I got mine on ebay for $50.
Sometimes you can get a bargain if you wait.

I think he means a plug outlet.

were the machines usable?

There is also the issues of galling and sticking, spinning and slipping... I looked into it once for a project I never built. Design will depend on the materials of the parts, the force holding them together when engaged, the force releasing them, the torque acting on them, and so on. If someone has...