Sounds like you’re actually living a full life, learning and seeking.

Bet you wouldn’t change much in your past.

When I die: I want to covered in scars, in a room of mementoes, and surrounded by my people. (Some sort of bloody last stand would also be cool.)

My physics professor was Italian and a very snappy dresser. Although, he also wore shorts and soccer jerseys some days.

Very funny guy and could do trig out to several decimal places in his head. He was one of those rare professors that was doing research but still a great teacher. He was responsible for making math ‘click’ for me and helped me realize the joy of math.

Got tired of paying high prices on razor blades, using disposables was wasteful, and the exponentially increasing number of blades wouldn’t get under my nose.

Switched to an old school Gillette Tech safety. Switched to Barbasol instead of the thicker stuff. Shaves better, cheaper, just as fast. No stupid rituals required. No shaving soap, mug, bristle brush or horseshit required. (I do recommend starting with one of the combo packs of razors to find the one you like).

I even shave my balls with it.

My son has his own tech, and has never tried any of the goofy ‘modern’ crap.

This was a solved problem nearly 100 years ago. Funny how marketing works.

Or, like, maybe, you should go eat a bag of dicks.

That makes more sense. Nothing to do with wear. I guess the dimple would be a removable insert. You could have a selection of them and swap when calibrating the line.

I would think that blow mold is happening right before washing and bottling. Tube blanks are probably supplied in Gaylord’s coming from the plastic producer. Transporting semis full of empty jugs doesn’t make sense.

I’m suprised there is that much variation in volume, I would expect the temps to be more consistent. I guess the compressed air temp is the main variable, mold temps should be pretty consistent. Ambient air temp when the bottle is cooling probably also plays a role, more or less shrink before it “freezes”. Not sure if they’re made from LDPE or HDPE but those are both really stretchy, so I guess they very well could jump all over on size.

Most of my mold experience is in automotive, which is going to be a tighter process.

I don’t think this is correct and would need to see a source before I believe it. I doubt the dimple is adjustable in the way you’re describing.

The amount of wear needed to change the volume by a noticable margin would be quite significant. Surface finish of the mold would be degraded enough that they would probably scrap the mold before using an adjustment like this as the mold would have sticking problems.

It might be volumetric compensation, but I doubt it’s directly wear related.

The mold is going to be at least two parts that split to get the blown jug out. The jug feedstock probably starts as a molded tube blank with the threads already in it. Would look like a test tube with a milk jug mouth.

Thinking about it, and I suppose you could actually call it wear compensation. Machine the mold with max dimple present. As your parting faces/lines take damage, you reface, and take some off the dimple to compensate for reduced volume. Maybe. That’s my best guess if it isn’t structual. Usually the rest of the mold has taken enough damage/wear that you’re scrapping the entire thing.

I actually have a wood lathe and all the other tooling to make one, not that I would.

I’ve been fixing the place up since August. It’s a farm that hasn’t been properly maintained in about 20 years.

I’m doing my best to build to the standard of the original owner and his son with modern materials and methods. It’s a humbling experience. Nothing is quite square but everything is built like it’s bomb proof. You couldn’t afford to build out of solid wood like they did. The joints and meets are also super tight, you can’t get a sheet of paper between roof boards on the barn in most places.

We’ve got a 100 year old toilet roll holder, the spindle was turned on a lathe and the wooden cutout it sits in was hand carved. It is a poor fit for modern high sheet count rolls. We can’t stand to get rid of it so we just leave the roll outside of it until it is small enough to fit.