We went to our metal supplier yesterday (Chris and I) to see what we could find. You never know what drops he has so I had not decided on a design except it was to be 6 cylinder. I settled on this chunk of aluminum 2.5 X 5 X 28" long. I only needed half that much but he didn't have a way of cutting it then so I took the whole piece. Weight over 30 lbs. I should have enough even if I really mess things up.
Cutting off a 12" piece.
![IMG_3279.JPG IMG_3279.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110455-69b7e2b8fad003a1af474bc1da3626e0.jpg)
The block for the engine will be 3.5 tall by 2 wide by 12 long so that means I have to slice this block length wise.
Harbor Freight band saw to the rescue.
![IMG_3282.JPG IMG_3282.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110456-15c3b84fa62f6b2ae18b098ddec38051.jpg)
It was a little tricky at the beginning even though I had the guide rollers open as far as they would go I had to open the vise and tilt the part back until the cut was deep enough to clear the guide.
The cut ended up off by 0.032 from one end to the other I am pleased.
Over to the mill to clean up and cut to size.
![IMG_3284.JPG IMG_3284.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110457-75be4a1ea4e8b574a2a01382bcab63dc.jpg)
Right now the engine will be.
6 cylinder 1" bore
Overhead cam
Water cooled
Crankshaft will have 4 main bearing saddles with two 6700 ball bearings under each saddle with a stroke of 1.100.
This is the crankshaft unpainted and you can see the four bearings of either sides of #3 and #4 rod throws.
![IMG_3273.JPG IMG_3273.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110454-a0cd76a109635eec4b270d6122d0083e.jpg)
Thanks for looking
Ray
Cutting off a 12" piece.
![IMG_3279.JPG IMG_3279.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110455-69b7e2b8fad003a1af474bc1da3626e0.jpg)
The block for the engine will be 3.5 tall by 2 wide by 12 long so that means I have to slice this block length wise.
Harbor Freight band saw to the rescue.
![IMG_3282.JPG IMG_3282.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110456-15c3b84fa62f6b2ae18b098ddec38051.jpg)
It was a little tricky at the beginning even though I had the guide rollers open as far as they would go I had to open the vise and tilt the part back until the cut was deep enough to clear the guide.
The cut ended up off by 0.032 from one end to the other I am pleased.
Over to the mill to clean up and cut to size.
![IMG_3284.JPG IMG_3284.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110457-75be4a1ea4e8b574a2a01382bcab63dc.jpg)
Right now the engine will be.
6 cylinder 1" bore
Overhead cam
Water cooled
Crankshaft will have 4 main bearing saddles with two 6700 ball bearings under each saddle with a stroke of 1.100.
This is the crankshaft unpainted and you can see the four bearings of either sides of #3 and #4 rod throws.
![IMG_3273.JPG IMG_3273.JPG](https://cdn.imagearchive.com/homemodelenginemachinist/data/attachments/110/110454-a0cd76a109635eec4b270d6122d0083e.jpg)
Thanks for looking
Ray