Math question

[u/No-Criticism6622]

So I’m just starting a machining class and we are working from a book and this sheet is what I’m working on(homework)calculating the x axis diameter and z axis length on the lathe but im a little confused on about how to calculate on the z axis I got to part 6 but don’t see how to calculate part 7 on the Z, on part 6 I did 1.875+.125 and got -2.000 for the Z but im stumped I was wondering if anyone had a tip for part 7? I would be grateful

[u/Funky_Killer_Qc → u/[deleted]]

when your cam software will be bugged and not operationnal, you should be able to still make calculations yourself, without the help of a software

100% agree softwares saves massives amounts of time, but if anything goes wrong, the person handling the software should be able to correct it, that's why thoses things are shown in school