- Joined
- Aug 25, 2007
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Today I started whacking away on one of the pieces of copper tubing Crab sent me. I cut 3.5" off one tube to flatten out for the end caps. It had not occurred to me that converting a round tube to a flat piece of copper would be that difficult. In the end, it wasn't, but it did have me scratching my head for a little while. The tubing has an .083" wall, and, I didn't think to anneal it first. Be that as it may, I managed to spread the axial cut on one wall far enough to get the tube over a piece of railroad rail. From there is was must a matter of beating it into submission with my 3 1/2 lb hammer.
After laying out the circles, I cut the squares out on my band saw, then laid 45 degree lines to create octagons.
And cut them out...
Then, using my 2" x 48" vertical belt grinder, I ground the blanks down to the inscribed circle.
Here is picture with the boiler tube sitting on top of one of the blanks...
Chuck
After laying out the circles, I cut the squares out on my band saw, then laid 45 degree lines to create octagons.
And cut them out...
Then, using my 2" x 48" vertical belt grinder, I ground the blanks down to the inscribed circle.
Here is picture with the boiler tube sitting on top of one of the blanks...
Chuck