I have an Enco 110-2079. It has the Asian compound orientation (The compound is parallel to the bore when set to Zero)
I do not have that lathe. So take this for what it is worth...
This makes setting the compound for threading interesting. As you can see, the scale only goes to 50. So setting the compound to 60 1/2 degrees is a pain.
My question is: What kind of mods have you all done to help ease the pain? I have thought for many years of putting a scribe line on the carriage where the zero should be. Just wondering what everyone else has done.
Thanks
My monkey brain still thinks that the Asian way of zero being in line with the lathe makes more sense, although either one is just as useful. (I also think a radius dial is more intuitive than a diameter dial, even though I can appreciate the convenience of a diameter dial in most operations... so maybe my monkey brain is cross wired up funny and you hadn't oughtta be listening to me....)
On my South Bend, the compound angle scale is on the back side of the compound, so you have to walk around to the back of the lathe to see it. And said compound does rotate and is functional through 360 degrees of rotation (although some of that range is pretty impractical to use, at least 270 degrees of it is surprisingly useful. Not all of that range is necessarily "necessary" in any way, but useful. in keeping the compound out of your way for other parts of the project, not having to reset it for example. The original owner at some point got frustrated, and marked the cross slide as you say. It's so light that it took me a year of owning the thing to notice them, but if you wipe the oil off, there they are- Super light scribe marks, no deeper than the factory machining marks, but clearly distinct once you find them. So there's an index at every 90 degrees. I use one of those "extra" marks more often than I use any of the other three (including the original). I find them to be a sound solution.
So you have what looks to be 45 degrees on each side of zero... That's enough. my vote is yes, if having a changable zero degree reference won't wreck your day, mark 90 degrees from the original mark, in any and every direction that you think might be of use. Make them as accurate as you can, but don't loose any sleep if they're not perfect. Compound angle gauges are not necessarily perfect themselves. Plenty close enough is plenty close enough, because if you need precision, you're gonna have to indicate it anyhow.
.02