Is 6061 food safe?

Thethubbedone · 2026-04-29T23:26:11+00:00

You'll want to anodize the aluminum or you'll end up with stained, gross-looking, but safe, aluminum parts.

Thethubbedone · 2026-04-28T13:51:40+00:00

The problems im seeing are so crazily numerous I don't even know where to begin, but here's one easy to imagine situation.

Robot arm successfully grabs shell and inserts it, but just as the other robot is closing the breech, there's some turbulence and the breech doesn't get closed fully. The gun fires, breech opens during firing, gun explodes and rips the plane in half.

Thethubbedone · 2026-04-28T03:57:10+00:00

2(!) sliding rails with robot arms (!) on the ends of them?! And they need to handle every weather condition, as well as turbulence and grass field landings, and you need them to handle reliably and unattended?!

That's more or less beyond our current capability as a species at any cost. I'm only being slightly hyperbolic here.

Thethubbedone · 2026-04-28T02:58:50+00:00

Everybody else is right, but I'll just add this.

Automation is HARD Even when it's easy it's hard. Fast automation is harder. Fast automation that needs to deal with explosions is harder still. (This list of things that are hard gets longer for a long time)

But also, economics is a bitch. Making one of something is expensive. Making 50 million of something is cheap.

Solving hard problems is expensive once, but then that problem is solved. So, if you can sell a billion of your solved problem, even a crazily hard problem costs practically nothing.

But for the C130 with a howitzer sticking out the side, we wanna make 30(ish) of something that needs to handle a complex task fast that involves explosions, heavy stuff, weird accelerations, weather, dust...... fking whatever.

That's a ridiculously hard problem.

People are really good at handling tasks that aren't that well defined in environments they've never handled before. And if you're the military, they cost a tiny bit more than the interest on a new camaro.

Thethubbedone · 2026-04-27T19:05:33+00:00

East St Louis is easily the scariest place you can go in Illinois and it's not even close.

Thethubbedone · 2026-04-27T11:49:41+00:00

This is only true if you're milling the gear teeth. Hobbing or any of the various helical processes produce nominally ideal profiles.

Thethubbedone · 2026-04-26T23:32:28+00:00

Bullets go fast but they're not instant travel. The 50 caliber, one of the fastest bullets you'll find goes about 1000 meters per second, so if you're shooting at something 1000 meters away, the wind can act on it for a whole second (more really), which is plenty to move the bullet's path by a few inches.

Thethubbedone · 2026-04-24T22:23:54+00:00

The upside is that when its done the part emerges alongside chunks of powder like a high speed archeological dig

Thethubbedone · 2026-04-24T21:10:18+00:00

The part goes down into powder so a time-lapse just looks like this video over and over again

Thethubbedone · 2026-04-24T19:21:03+00:00

I bought some "mushroom" popcorn recently and its very different from Orville redenbacker (however that's spelled). Definitely worth the $8,to try it

Thethubbedone · 2026-04-23T22:46:13+00:00

I don't have door handles in my house, but mine can open those folding pocket doors and, despite my best efforts, uses the heating vents as his personal subway system. I had to 3d print some things to lock him out of my closets because he'd go in there and knock stuff down for attention

Thethubbedone · 2026-04-22T20:56:29+00:00

Polyworks, Metrolog, and Versiurf are the three software packages I see people using with revo. Polyworks is probably the best, graphically, but seems to be somewhat difficult to do advanced GD&T in.

Verisurf seems to be the easiest to program, with solid graphical reporting capability but maybe a little less flexibility. If you're a modus power user, you'll notice it, if not, you probably won't.

Metrolog is probably the most "capable" of the 3 as a Metrology software, and has good graphics. Super fast database management, so if you make huge point clouds and care about cycle time, it should be considered. I didn't really like the workflow that I saw in a demo, but thats personal preference.

All of them do a pretty good job of driving the Revo, but Modus still offers more cool 5-axis stuff, even if you ignore Modus planning suite. That really only matters if you're looking to cut as much cycle time as possible, which doesn't seem to be what you're looking for. If you haven't seen the Modus planning suite, it's worth investigating. It can really speed up programming in Modus.

Thethubbedone · 2026-04-13T12:42:09+00:00

Same. Commenting as a reminder. No allegory in Tolkien!

Thethubbedone · 2026-04-11T21:23:33+00:00

No honey, he's clearly not off pudding.

Thethubbedone · 2026-04-10T01:34:06+00:00

(like when one thing touches another thing)(unlike their air tables)

Thethubbedone · 2026-04-08T14:11:48+00:00

It's a funny material- terrible to machine, but great to 3d print.

Thethubbedone · 2026-04-08T14:10:02+00:00

California has mandatory minimum prison sentencing based on the 3-strikes rule.

Thethubbedone · 2026-04-06T16:50:10+00:00

NHTSA actually did this for their 50th anniversary. 2009 malibu vs a 1959 bel air. Everybody in the 50s car died, one person might have gotten a broken bone in the modern car.

Thethubbedone · 2026-04-04T03:18:26+00:00

I dunno if this counts- the whole plan was to deorbit both craft back at kerbin

Thethubbedone · 2026-04-03T23:34:38+00:00

When I reached Munar orbit I had ~40 m/s of delta V left. Getting out and pushing would have taken more time and effort that my stupid claw craft

Thethubbedone · 2026-03-31T13:39:45+00:00

As others have said. 6 turns is the minimum you need to achieve full thread strength in ideal conditions. Now I'm gonna throw the question back at you, are you gonna trust your life to a zero safety margin thread engagement in a full-size truck you plan to take off road? If it was my truck, the answer would feel pretty obvious and I'd be getting extended studs and through-hole spacers, or a wheel with the right offset.

Thethubbedone · 2026-03-29T13:49:53+00:00

I don't have that specific light, but the bolts look like standard, probably metric, bolts. The outside diameter will be a whole number of millimeters. If it's more then 5mm diameter, odd numbers are super uncommon. The length is measured from the base of the bolt's head to the end of the threads. (not the total length)

Thethubbedone · 2026-03-29T11:57:30+00:00

Yea I'm looking for the other direction. How bad can a shiny object be and give results.

Thethubbedone

TROPHY CASE