Before I am hung, drawn and quartered, for operating a lathe without guards, here is the proof that I have been sensible.
Guard over the X axis pulleys. I like to watch the wheels going round and round, hence the transparent top. Also note the cover over the exposed ball screw.
Cover over the Z axis pulleys and belt, again transparent. If I wore a watch it would be transparent.
I also installed an ER40 collet chuck. I will be using this for all work with diameters under 26mm.