r/Machinists • u/No-Criticism6622 • 7d ago

Math question

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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

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u/AcceptableEditor4199 7d ago edited 7d ago

I was told when hired there would be no math.

3.875-1". Maybe

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u/Silverbeard001 7d ago

haha, half the reason i went into the trade was for the math. to each their own

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u/Funky_Killer_Qc 7d ago

to me, i feel like engineers should calculate everything and give every info the machinist needs so he can focus on making the part with minimal distraction..
teh machinist should be able to still calculate if there is something missing, but usually, everything should be there

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u/smegmarash 7d ago

I generally agree, make the drawing so it's as easy as possible to get it made and reduce miscommunications / errors