The Home Machinist!

Whenever I see "Superscale Locomotive" I visualize a Yellowstone built 4:1 instead of 1:4.

Thermite is an iron powder which reacts when potassium permaganate and a piece of magnesium ribbon is activated with glycerine. I've done this to weld some steel together; very hot. Don't try it at home. Thermite is usually a mixture of iron oxide and aluminum. https://en.wikipedia.org/wiki/Thermite

The specific gravity of prepared (alloyed) magnesium will vary from the pure element. The description provided indicates to me that it is, indeed, magnesium. Unlike most aluminum alloys, it's "crunchy" when machined. You haven't lived until you've witnessed a magnesium fire. The dazzling white flam...

On the bearing races, rather than sleeves on the axle, how about boring the end of the axle and pressing in purchased hardened dowel pins? (axle is shorter of course) That would create a stress concentration at the step where the pin goes into the axle. The pin diameter would need to be large enoug...

Be one heck of a 3d printer too. I’m a terrible salesman, but I gotta believe it’d be overkill for 3D printing. So what? Nothing wrong with a bit of overkill. At $300 it's probably the cheapest way by far to get that combination of working volume, stability, and accuracy. It could also double as a ...

The switch will work with 220. You wire it the same as with 120 but using L1 and L2 instead of line and neutral. You don't connect up the neutral at all (but connect the ground, of course).

I've used plain keyway cutters in my vertical mill with no trouble.

Buy a keyway cutter.

https://www.mcmaster.com/keyway-cutters ... end-mills/

liveaboard writes:
> I ran PEX tube underground too, for domestic water and compressed air.

Domestic compressed air? Do you outlets just in the kitchen and bathroom, or throughout the house?

SAE 5 would be closer to the viscosity of MMO.

>Being isolated from IR radiation,

UV.

Detergents don't suspend wear particles, just combustion products. I don't think that they will do anything at all positive or negative in a gearbox. I agree that MMO is a wierd choice, though. There must be a light gearbox oil with an EP additive out there.