Thanks CC, Chuck and Arnold for your comments
![:thumbup:](https://madmodder.net/Smileys/default/happy0034.gif)
I got a little more done today, somewhere inside both of these lumps of brass there are 4 crankwebs and a flywheel, my mission, should I choose to accept it, is to find them.
![](http://www.velvet-art.co.uk/photos/627787471_DECry-M.jpg)
So I hacked off a length of the long bar and chucked it in the lathe, faced it and turned it down to 28mm. Then I centre drilled and then drilled through progressively to 4.9mm drills, then finished it off with a 5mm reamer. (I guess this was a little overkill but I thought is would result in a good fit for the crankshaft)
I then chucked a 4.5mm drill in the tailstock the wrong way around and just positioned it so that it just stuck into the hole in the brass bar. Then I parted off a 5mm section, and rather than it dropping into the swarf it just got caught on the backwards drill. Then repeat for the other crankwebs.
![](http://www.velvet-art.co.uk/photos/627786448_NBzVW-L.jpg)
Then, after de-burring the parted off crank-webs, it was time to make another jig for drilling the holes for the big end pin and the little compression-hinging-hole-thingy. I made the jig as per the instructions in the plans. I drilled all the 2.5mm holes first, then using the pin to lock the disc I repositioned the x-axis and drilled all the 4mm holes.
![](http://www.velvet-art.co.uk/photos/627786825_5oY7r-L.jpg)
And so I ended up with this,
![](http://www.velvet-art.co.uk/photos/627787201_BVjMF-L.jpg)
You may notice that one of the crankwebs is not as good as the others. When parting off the carriage moved slightly, but it's not too bad ( a blind man on a galloping horse would never notice
![:lol:](https://madmodder.net/Smileys/default/kranke_200-1.gif)
) I think I might be able to salvage it.
Next I will be milling the crankwebs and also turning the flywheel.
Tim