Generatorgus
Senior Member
- Joined
- Feb 25, 2010
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- 362
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Since I already have the exhaust and water outlets made with a rounded rim on the tube part, I wanted to keep with that theme, so the elbow I dug out of the fitting bins would be the model.
First thing was to make a small rounding tool out of a water hardening drill rod.
Simple enough.
I was only cutting brass but I figured I might as well harden it.
Quote: "I new better but did it anyway."
First lesson learned that day was not to use the dogs Styrofoam water dish for cooling a red hot piece of steel.
The rim was burned with the torch when I pulled it off of the workbench because the water was running all over my welder.
That lesson duly noted I got busy making the half elbow pieces.
I first tried making the rim then turning the minor diameter and drilling a pilot hole.
Poor plan, it would be difficult be difficult to hold while cutting the miter, which I intended to do with an end mill.
After figuring that out I decided to make another rim farther down the same piece which was a piece of brass bolt. That ended unhappily. Holding a work piece by the threads is something I should do less often or not at all.
New plan. Drill the pilot hole, turn the small end , cut the miter with the slitting saw. (Note: In an earlier post I was complaining about the screw on thearbor being siezed. While doing this cutoff, a bit of chatter loosened it up, maybe I won't can it after all.)
Then back in the lathe to make the rim and part it off.
For this and being the frugal person I am and not having a piece of 3/8 brass rod on hand, I sacrificed a couple of ½ brass screws that I have a few dozen of for quite a while and havent ever used one.
For times later I had this, ready for the torch.
First thing was to make a small rounding tool out of a water hardening drill rod.
Simple enough.
![DSCN2856_zps763fe06e.jpg](https://proxy.imagearchive.com/508/5087c03c30bd7278bf04b3c2b7c8574d.jpg)
I was only cutting brass but I figured I might as well harden it.
Quote: "I new better but did it anyway."
First lesson learned that day was not to use the dogs Styrofoam water dish for cooling a red hot piece of steel.
![DSCN2855_zps0baa2053.jpg](https://proxy.imagearchive.com/da8/da84ba673d7abef1498c182567904629.jpg)
The rim was burned with the torch when I pulled it off of the workbench because the water was running all over my welder.
That lesson duly noted I got busy making the half elbow pieces.
I first tried making the rim then turning the minor diameter and drilling a pilot hole.
Poor plan, it would be difficult be difficult to hold while cutting the miter, which I intended to do with an end mill.
After figuring that out I decided to make another rim farther down the same piece which was a piece of brass bolt. That ended unhappily. Holding a work piece by the threads is something I should do less often or not at all.
![DSCN2857_zpsae76ebad.jpg](https://proxy.imagearchive.com/5b6/5b6df1266a1d3a28670c185e387ab310.jpg)
New plan. Drill the pilot hole, turn the small end , cut the miter with the slitting saw. (Note: In an earlier post I was complaining about the screw on thearbor being siezed. While doing this cutoff, a bit of chatter loosened it up, maybe I won't can it after all.)
Then back in the lathe to make the rim and part it off.
For this and being the frugal person I am and not having a piece of 3/8 brass rod on hand, I sacrificed a couple of ½ brass screws that I have a few dozen of for quite a while and havent ever used one.
![DSCN2862_zps0efd4e27.jpg](https://proxy.imagearchive.com/ccf/ccf6af9d265206f7de4c2a619cc2673b.jpg)
![DSCN2863_zps9cbe0980.jpg](https://proxy.imagearchive.com/2e4/2e4acb37ebec872c8896dd81d7c0dfef.jpg)
![DSCN2864_zps0b4ac721.jpg](https://proxy.imagearchive.com/12f/12fa2da7b79d42c90d94531523255733.jpg)
For times later I had this, ready for the torch.
![DSCN2868_zps2b9d79d9.jpg](https://proxy.imagearchive.com/875/8751287363e2b202d1b916fe89b101b6.jpg)