Richard Hed's latest activity

I have never heard of Dr. Genevro. Did he have a website? When did he quit manufacturing?

Hello Richard on photo No 2 is the model of a steam winch. The original was built by clark & chapman around 1880, and I think it was...

The package of parts shown in post #339 was ordered from AliExpress, from China, and came with no instructions, no pressure ratings, not...

Hey Manne, Could you be so kind as to tell us what that second engine in the photos is? I have never seen that before.

Now working on CAD (SolidWorks) to figure out how to make the lifter stem "protection". Originally there is a kind of foldet steel to...

If you look around in this forum you will find a WHOLE LOT of discussions on piston rings. I don't know where they are as I am not...

I came across this video about sand for concrete. Watch from 6:33 to 10:52, the sand I use has sharp edges and makes strong molds but...

I have moved heavy equipment by jacking it up an inch, and putting 1" steel rods under it. I have seen others do this too. Works well...

I have ever try moving block or object that weight. Myself and A employee move a 44,000 pound lathe by hand. It only took about ½ hour...

Before I was in high-school I was using the slide rule drafting basically model aircraft and model engine and parts for engines. Most...

Yes, yes and yes. I have my students estimate, estimate estimate and put the units in and keep track of them properly

On a more serious note - using a slide rule teaches you to estimate the answer in very round numbers which helps you to check that the...

I used slide rules when I was about 9. Th Teacher asked me how I was doing the sums in class as I was quicker with the answers than I...

You could say the same for abacus' too. Don't forget that in modern methodology the schools teach to the SLOWEST student. What our...

I forgot to turn one off--nono, someone in another class did not turn one off, it was on all nite. Didn't turn off (Mitutuoy or a knock...