Making the drain-- This piece of steal was a road side pickup and was used on machinery so it is a very quality piece of metal. It is very tuff, yet not hardened.The chop saw blade paid a price for cutting it yet it was workable to a file using a grinder the spark test showed it to be nickle steal. You can not just look at a piece of metal and know what kind of steel it is. The best way to explain how to know the differences by the spark pattern from touching metal to a grinding wheel. This metal produced a small orange spark stream, telling me that it was nickel steel. Other spark patterns tell what other metals are. In my book I explain home gun production and emergency gun construction and repair.
Above the metal can be flattened with a file and the right side was high and so a circle was drawn and a file was used to remove some of the metal. I would work the metal in tell most of the mark was removed. Both sided were flattened with a file and finally the part was taken to a belt sander and held against the moving belt to finish the job on both sides. The large hole is for a center for a lathe for turning and I put it in there some years ago making a part for something else. Below I am countersinking for the 1/4 20 bolts and will do the same on both sides of the part. The large hole in the middle douse not go all the way through. A smaller hole with a #44 drill bit is preferred. The large hole will first be tried against the 1/4 inch drain. If it douse not prove functional the part will be flipped over and tried. If it douse not work I will make a new one. with a single #44 drill bit.
Note the 1 inch long 1/4 20 bolt in the tower below this will allow for the adjusting of the push rod drain rod so it will not pull to far out of the drain hole
Not the drain tip on the drain rod was done by hand against my bench grinder. In a shop this would have been a turning operation in a lathe. I have a lathe but did not use it.
Note the small hole finishing the job on the bullet casting drain plate above. If you are making ingots remove this drain plate. Richard W Norman To view next posts click
A Blog has the ability to up date material and even though time has passed and this is an old post I noticed that a lot of people will only view one page and move on. So it seemed practical to place a photo of the finished product on each post.
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