I attempted to drill the holes in the front fork extensions, but I always seem to have problems drilling these former hinge bars. If I was building a bike for someone else I would have gone and bought a decent bit of steel, but the challenge here is, of course, to reuse the stuff that I find lying around.
What this meant is that the bigger the drill bit was, the less likely it was going to get through the outer layer. The answer was to finish off the job using two or more of my round files until one of my spare axles would fit comfortably through the hole. The holes themselves had to be 8mm at one end and 6mm at the other, to fit the classic front wheel axle size and the thicker one that this bike's forks's insist on using.
OK, it is a bit of a blurry shot, but yes this one fits the wheel axle. I do not know if this axle is 6mm or 1/4", I suspect the later, but since my local stores only supply metric sized drills then 6mm it is followed by a file.
I happen to have a rear axle lying around that has rather beat up threads, but it fitted, so that meant the only filing left on this one was to get a second rounded end.
Well yes, I could have spent more time getting equally nicely curved ends, but I am happy enough with a set of four unequally nice ends. I could of filed or power sanded them flat, but I kind of like corroded finish, I will always know whee the steel came from.
All they need now is a couple of coats of paint, but first I need to try them out, and that will probably involve shortening some 8mm diameter bolts to install them on the forks, fitting a shorter axle and finish making the support rods.
All in all, not a bad day.