Rounded Iron Edge - Sharpening
TLDR: I've rounded my plane iron and I can't get it sharp, yes I have sharped the bevel and the back
So I got my first hand plane. Its a Sargent 409c. I got it all cleaned, tuned up (as good as I can for my first time around), and flattened. The the plane came with an iron that was sharpened at 45*. I wanted a more traditional 25*, so I started with my bench grinder to change the angle. I thought I did an okay-ish job getting the angle I wanted (spoiler alert: no I didn't), but I will be upgrading my guide for next time.
After getting the ~25* angle on my bench grinder I used a honing guide on sandpaper adhered to a granite scrap off I bought from a counter shop. I started with 80 grit and went in series with 80, 120, 240, 400, 800, 1200, and then finished with a strop I use for my cut throat razor. The iron wasn't sharp, at all. It was highly polished on both sides, but would not bite into anything. I looked at it more closely and noticed that instead of having a sharp point I had a incredibly small flat "nose" at the point of the iron.
Went back to the sand paper and started again at 80 grit with the honing guide and also figured out that when I had set the angle on the bench grinder I had slightly chamfer-ed the iron. I added a strip of 40 grit sand paper on the granite and flattened the edge of the iron while stopping every 2-5 strokes to compare the iron to a try square to make sure the edge was flat and at the correct angle. After I got that done I went back to using the sandpapers listed above
I have been using mainly 80 grit sand paper, and then going to 120, and 240 to figure out if I had a proper point on the iron, but it still isn't biting anything. I have tried working my way up slowly through the grits until I got to 800 to see if I just needed to get the iron edge sharper to bite, but that has not worked either.
I have now been at the recovery stage of this for 4 hours (so not including the original tune up, sharpen, etc.) and could use some guidance.
Thanks in advance for the help