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Yup, if I remember correctly from my ACAD classes a few years back you can set the ortho to 15, 30, 45, or 90 degree increments. I use the @length< for the 45's now, but if I figure out how to change the settting I'll let ya's know. The polar setting gives me the 45's but I hate the tracking lines and messages popping up at every snap so I use the at length going degrees prompt.
Another difference from my set up vs AGLA's is my default units are set to inches. @24<45 would produce a line 24" line going 45 from horizontal. I buy my tape measures marked in inches as opposed to one that is marked say 10' 4". It saves keystrokes when entering measurements. Three keysrokes for 124, four for 10'4. You can still enter it as 10'4 when you want but most often taking measurements off a house inches works best for me. It sounds silly when I say it now but every bit helps eh.
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