Member postings for Thor 🇳🇴

Hi Berra,

may be this ***LINK*** can be of help?

Regards

Thor

Hi Stuart,

steam engine slide valves often had some movement past the port (lead and lap). You can read a bit about this here, here or here.This will provide extra time for steam to expand and move the piston. If you have access to Model Engineer March 21. 1957 p. 421-422 E.T. Westbury discusses simple slide valve engines.

Regards

Thor

Edited By Thor on 25/01/2013 18:14:49

Edited By Thor on 25/01/2013 18:33:29

Hi David,

I have a milling machine similiar to Weiss WMD25, ta bit smaller than your WM18, and I have not experienced any of the problems you describe.

Regards

Thor

Hi Brandon,

If you don't want to spend a lot of money on a kit with castings, Phil's suggestion of building one of Elmer Verburg's engine is good advice. Elmer's engines are made from stock materials, some are easy to build, others a bit more advanced. He even has one with a generator (#40). Click on the link supplied above and download one of Elmer's engines.

Regards

Thor

Hi Rick,

I have tried to silver solder tungsten carbide onto steel. I used uncoated carbide and used a dry diamond hone on the underside of the carbide piece and cleaned and fluxed before heating. The carbide piece is still firmly attached to the steel.

Regards

Thor

Hi Martin W,

I have the same experience as you with NiMH cells. I use cells that has a low self discharge (Varta) and the last much longer that cheap Ni-MH cells, although that don't have as high a capacity as Neil mentions.

Regards

Thor

Hi Hilmar

Here is one website with pictures of a filing rest. Dean describes how he made one for his Taig lathe. Here is antother.

Regards

Thor

Hi Johan,

Your solution to the cooling problem of the mini-mill is very nice. Is the extracter fan very noisy?

Regards

Thor

Have a look at Harold Hall's website.

Regards

Thor

Hi Johan,

your dovetail cutter looks great.

Regrads Thor

Hi Stuart,

May be these links can give you some guidance?

Dean has a description of how he built a governor.

Here you will find drawings and pictures of a Watt-style governor.

Muncaster steam engine governor.

Regards Thor

Edited By Thor on 09/01/2013 18:44:28

Hi David

your recommended way of setting up puzzles me. In't it the opposite of what Harold Hall recommends?

Regards Thor

Hi Bill

my small workshop sure has a big black hole in the floor. If anything small drops to the floor, it is gone! Or may be my eyes are not as good as they used to be?

Thor

The round column of the Emco mill has a key that keeps the head positioned. If yoy rotate the head, the column rotates with it.

Regards Thor

Hi Johan

If you want to make your own dovetail cutter with a carbide tip this site may give you some info. I made one a couple of years ago, it worked although I had to take fine cuts. It acts like a kind of flycutter.

Regards

Thor

Hi Lee

If you think of HSS tool making as a black art why not buy or make a tangential toolholder? It is very easy to grind the HSS tool bits for these holders. If you buy one a grinding jig is usually supplied. It is not difficult to make your own holder and grinding jig.

Regards

Thor

Thanks Bob, same to you

Thor

Hi Siddley,

I found these by googling miniature chains, may be you can use them? Seems they have with pitch from 0.1475in. to 0.375.

If you don't want to make gears for your model engine, it is possible to buy them.

Regards Thor

Hi Chris,

Congratulations with your new mill. Hope your helper didn't suffer any permanent injury. Might have been wiser to wait for the cavalry instead of lifting it manually?

I got my new mill a couple of months ago, not as heavy as yours so it was easy to get it off the pallet. I moved the crate over my lawn by rolling it on a couple of broomstick pieces. With the help of a friend it was moved into the workshop (no injuries).

Regards Thor

Edited By Thor on 01/11/2012 10:45:58

Hi Raymond,

The table looks nice, I like the clamps you made,

Regards

Thor