When I got to actually laying out the dimensions on the first gauge (ie, marks in big Sharpie with dial calipers, I belatedly realized that the .036 flange width on the ends would be very delicate and vulnerable to damage if one, er, hypothetically dropped one on a concrete floor. Which is why my previous efforts had .100 rims rather than aspire to fit right in the frog of turnouts. I opted to repeat that choice for durability’s sake.
Being an aspiring novice hobby machinist, there are things I know need improving in the execution of these parts. Measuring those small gaps with dial calipers isn’t the most precise method but all I have that works. The finish isn’t as smooth as it should be which I know how to fix but will require developing my tool bit sharpening skills. There are probably things I don’t know that should be improved, too.
Anyway, parts done and sent off into the pre-Christmas postal maelstrom.