Emma Moore (u/emmam32)

Posts

Ran a job with 0.001 tolerance on a 20 year old Haas and it actually held. Luck or skill?

I was out at a shop in Gary, Indiana last month doing a run of aerospace brackets. The print called for +/- 0.001 on three critical bores and I had to use an old 1998 VF-2 with worn ways. I babied the feeds down to 8 IPM and used a brand new 3/4 carbide end mill, but part of me thinks it was just dumb luck the machine didn't drift. My buddy swears you can hit those numbers with old iron if you take light enough passes, but the old timer next to me says its all machine condition and you're kidding yourself if you think operator finesse matters that much. Who's right here? Has anyone else held tight tolerances on a clapped out machine and felt like it was a coin flip?

2 comments

c/concrete-finishers•

emmam32•11d ago

Took me 10 years to realize I was overworking my concrete when bull floating

I was at a job in Tulsa last spring and an older finisher watched me work for a minute. He said 'you know you're pushing all your cream to the surface, right?' I had no idea what he meant. Turns out I was floating way too early and too aggressively. I was basically making all my slabs weaker by dragging the fines up. Now I wait longer and take lighter passes. Slabs look better and I stopped getting that dusting issue I used to blame on the mix. Anyone else learn a basic thing way later than they should have?

2 comments

Recent Comments

5d ago

Can we talk about how I used to set nails vs. now?

Hank was right! Switched to a 45 degree pitch a year ago and my nail pops dropped way off.

6d ago

Spent 6 hours trying to fix a spine that just wouldn't curve right

Wait, are you talking about rounding or backing? Because you said "hammer those shoulders in" which is actually backing, but then you mentioned glue up before backing which is backwards. You definitely should not be shaping shoulders on a spine that hasn't been glued and rounded first, that's just asking for the signatures to shift around. The whole point of backing is to create that joint after the spine is already rounded and the glue is holding everything in place. I've seen people try to rush the order and end up with a completely lopsided book that won't even sit flat. The six hours thing, yeah I get what you mean about it feeling longer than it actually is, but sometimes if you're learning or trying a new technique every little step takes forever especially when you're checking everything twice.

6d ago

Can we talk about buying cheap spices in bulk?

Why not just freeze half of it? Cumin freezes fine. Or make a big batch of chili and go heavy on it, that stuff can take a lot.

7d ago

Can we talk about IKEA desks and that foil edge banding?

Wait, only three months and the edge just fell off like that?

8d ago

Vent: Bought a 'universal' elevator door lock tool online for $75 and it was useless

Bet the "made in USA" stamp on that Otis is actually from a factory in Ohio that closed in 2008.