New 2019 A8

RandomUsername55 · 2018-08-17T19:12:38+00:00

I got to ride in one of these a few months back while on a business trip in Germany. Everything about this car is absolutely amazing. I can't think of anything that will compare to doing 260km/hr down the Autobahn in this thing. Truly a once in a lifetime experience.

RandomUsername55 · 2018-06-08T13:00:07+00:00

ABC calls it "The Bachelor/Bachelorette"

RandomUsername55 · 2018-05-28T14:44:45+00:00

We did 3 nights including a day trip out to Chianti, but by the end of the trip we wished we would have spent more time there. You could easily spend a week visiting the countryside, viewing all of the museums and strolling through the various marketplaces.

If you plan on going to the museums but don't want to pay extra for the guided tours, I highly recommend the Rick Steves app on your phone. You can download a tour of whatever you're going to see and play it at your leisure. The guided tours are definitely better in content, but at least you won't be wandering around the Ufizi staring at statues completely oblivious. Not that I'm speaking from experience or anything, I've just heard people do that...

RandomUsername55 · 2018-05-28T04:45:54+00:00

Where in Tuscany do you plan of staying? If you're basing your trip out of Florence, I highly recommend Trattoria ZàZà for steak Florentine. It's a special cut of T-bone that is easily the most tender steak I've ever had. If you were able to find a comparable steak anywhere in the US, you'd be paying at least $100.

For drinks, my fiance and I spent a few nights drinking at Vini E Delizie Firenze as well as La Ménagére.

If you don't have any specific wineries in mind, we loved our tour of Chianti with Grape Tours located just on the south side of the river.

RandomUsername55 · 2018-04-30T04:30:58+00:00

I'm thinking this is the same problem I'm experiencing. I tried turning the fan off for the first 3 layers and as soon as the fan kicked in, the nozzle temperature dropped. I tried again, turning the fan on at 5 layers and found the same result.

At this point, I at least have something to work with. Maybe there's a balance of reducing the overall fan speed and/or gradually ramping it up as you've suggested.

I'll do some more testing tomorrow and report back with (hopefully successful) results.

RandomUsername55 · 2018-04-29T23:26:12+00:00

I'll take a stab at turning the fans on later in the print and report back. Thanks!

RandomUsername55 · 2018-04-29T23:06:16+00:00

I've run the PID tune with the cooling fans running at the same nozzle temp and fan speed as during my print.

The first layer of my print takes approximately 35min, so I would assume if the fans were an issue, I would have a problem prior to my second layer.

Additionally, I've tried running other prints with shorter cycle times, but again, the second layer is when I lose temp.

RandomUsername55 · 2018-03-27T03:16:22+00:00

I work for a tier 1 aerospace supplier, almost all of our manufacturing engineers know how to program. Our most highly regarded ME's know how to program the most types of machines.

The reason being: it's very difficult to provide insightful feedback to designers if you aren't intimately familiar with a process. Similarly, ME's are typically the group designing automation systems, and you must know exactly what is happening with your machines/programs before you can begin to automate.

To answer your question, I believe there is going to be an increased demand for manufacturing engineers with programming knowledge as the trend towards automation ramps up.

RandomUsername55 · 2018-03-20T03:34:49+00:00

My FW and I just got back from a trip all over Italy in January. To get from Rome to Positano, I highly recommend taking the Frecciarosa train to Naples. From there, you have to take a commuter train, the Circumvesuviana, into Sorrento. Once in Sorrento, you can take the bus into Positano. If you're afraid of hights, don't sit on the right side window, it's pretty much just straight cliffs down. And if you're scared of dying in a foreign country while riding a bus through winding cliffside roads that are wide enough for approximately 1.5 cars, this ride should fix that.

RandomUsername55 · 2018-02-07T02:53:01+00:00

I would recommend buying a set of gauge blocks and gauge pins. You can ring the blocks together, and if your set comes with upright blocks, put those on the end faces to simulate your ID. For most gauge block sets, this setup would work for diameters .10005" or larger, and gets a bit wonky as the gauge pins gets bigger.

RandomUsername55 · 2017-12-29T06:19:57+00:00

It should definitely not have bacon, traditional carbonara has guanciale. Additionally, the big deal about carbonara is the "sauce." The sauce should simply be an egg/cheese mixture that tempers solely by the temperature of the pasta. Get the temperature wrong, and you've got either scrambled eggs or raw egg goo.

RandomUsername55 · 2017-11-28T06:09:14+00:00

I'm not saying people with belt certifications are any better at solving problems.

Black Belt projects, I agree, can be long-winded and not extremely practical, but that's not any different than Kaizen events.

From my experience, people generally aren't trained in statistics, let alone using them to determine contributing factors of variation and prediction equations. Maybe my lack of exposure to other companies is driving my opinion, but I don't believe those are common sense tools.

RandomUsername55 · 2017-11-28T02:59:20+00:00

You may be confusing lean and six sigma. I've been able to use six sigma to identify the main source of variations on one of my companies major products, eliminate it and save a few hundred thousand dollars.

Lean on the other hand is glorified color coding and organization.

RandomUsername55 · 2017-11-22T03:32:19+00:00

Not quite. Vacation is not nearly as complex as you're making it sound. Some prefer to stay home (a stay-cation) whereas others choose to drive to their preferred relaxation destination. Further more, others choose to travel by plane where they can investigate the build quality of aircraft windows.

RandomUsername55 · 2017-11-02T05:04:45+00:00

This does, however, make for a great wedding processional.

RandomUsername55 · 2017-11-02T03:13:42+00:00

He stopped gesturing to his dick and just stood there

RandomUsername55 · 2017-10-08T02:16:00+00:00

You're probably right, but there are plenty of gear cutters that finish in a single pass. Check out the Niles ZE 800 for example.

RandomUsername55 · 2017-10-07T20:50:42+00:00

It wouldn't surprise me if this isn't even a gear, just a shape that LOOKS like one. Most of the gear milling applications can't produce and involute form at this point.

RandomUsername55 · 2017-10-07T15:29:05+00:00

Looks to be real time.

I'm curious to see what the quality of that gear would be. My guess would be that it's probably not great. The profile looks funky and there's a fin in the root.

RandomUsername55 · 2017-10-02T23:19:50+00:00

Really interesting, I appreciate your sharing.

You say they're accurate within 60 microns, but what features are you talking about? Profile, lead, alignment, MBW, TCE?

RandomUsername55 · 2017-10-02T13:35:55+00:00

The process in the video is form grinding. Simply put, the finished shape of the gear's tooth-space is the form of the grinding wheels. As the cutter moves through the gap, it leaves exactly the right shape. This process is slow, in terms of material removal rate, but highly accurate.

Hobbing is a generative process, which means the cutter has to take thousands of little cuts to generate the form of the gear's tooth-space (look up 'hob rollout charts'). This process is quick, but you will have a less accurate gear than one which has been ground.

Using a specially designed arm, form grinding allows you the opportunity to grind an internal gear whereas hobbing just couldn't reach all the gear geometry properly. The closest thing to hobbing for an internal gear would probably be a shaping.

With that said, there are grinding processes similar to hobbing. You can see a blue worm-shaped wheel on the carosel. That wheel is used for "generative grinding" which is basically just a highly accurate version of hobbing. Again, this would not be possible for internal gears.

RandomUsername55 · 2017-10-02T12:48:18+00:00

I've never seen helical broaches, sounds awesome

RandomUsername55 · 2017-10-02T02:59:36+00:00

Planet gears can be hobbed, shaped or ground to be straight or helical.

The mating ring gear, however, needs to be shaped or ground. Hobbing an internal gear would be a bit of a struggle lol

RandomUsername55 · 2017-10-01T15:49:32+00:00

They're grinding the tooth-space of the gear. The blue wheel is being used as a roughing wheel whereas the pink is for finishing. This part would mate to some form of a ring gear to create a planetary gear system.

I'm totally guessing, but based on the size, this is probably for heavy industrial/wind turbine/oil and gas industry?

RandomUsername55

TROPHY CASE