Comment Re:Video over LAN (Score 1) 85
WTF are you talking about? We develop VOIP systems and use VLC to both host and client streaming video all the time, both over LAN and WAN, and it works just fine under both UDP and RTP.
So GOML and HAND.
WTF are you talking about? We develop VOIP systems and use VLC to both host and client streaming video all the time, both over LAN and WAN, and it works just fine under both UDP and RTP.
So GOML and HAND.
:,-(
The precision is actually pretty impressive, I've had a model I designed printed out in brass before, and some of the detail, I can't imagine milling achieving it. But yeah, no question that milling or sintering will get your stronger parts.
Microturbines are one of those few things where 3d printing might actually prove an economical means of production - the keys being small, intricate, and very expensive.
I wonder how effective it'd be to print out one of these, minus the windings. They've got crazy power output (up to 100kW sustained / 200kW peak) and efficiency (up to 98%) in a motor small enough (20kg; significantly less without the windings) to make a 3d printing service (or more realistically in this case, a custom CNC milling service) cost effective. Buying them commercially, they're something like $4k USD each. But there's a 3d model available, so....
All I can say is, I'd love an electric car with one of those driving each wheel....
Oh, I agree, I could have prevented a metric fuckton of shit landing in my lap. I know that now. That's just how i learned it the hard way.
Now, any estimate I give includes plenty of margin. Like the top post says, poor managers get worst-case estimates, plus a healthy margin for the inevitable negotiation that will take place.
The same applies for cost estimates. I learned the hard way the first time I was asked to present an estimated cost to complete forced by an unexpected 16-week delay in critical long lead part from an overseas supplier. I made a diligent effort to present an accurate ETC to the customer. No margin, no padding, just my honest, well-documented estimate of the cost to complete the project.
I was expecting to be dealing with the engineers and project managers I'd been working with all along, who were competent technically and I got along with well. But instead, the customer (major aerospace prime contractor) sent in their best hard-ass negotiator who was an MBA with no understanding of the technical side.
Mr. Hard Ass refused to accept that I wasn't bullshitting him. And the engineers I got along with so well didn't do a thing to back me up. They just sat there looking uncomfortable. After two days of going over the schedule and estimate line by line, and me refusing to cut anything other than the slightest costs, Mr. Hard Ass went over my head to the CEO, who agreed to a 25% percent reduction in the estimate across the board. He just ate the cost.
I got dressed down hard for not padding my numbers, but he was decent enough to understand that the ultimate blame lied with the suppliers who waited until 4 weeks before their agreed delivery date to notify us they'd be 16 weeks late. And it was a lesson I will never forget.
Laser sintering of titanium is a well established process and should produce excellent turbine blades. 3d printing plus thermal spraying (a new one I've seen uses a form of laser spraying) might actually be able to produce parts better than would be possibly by any other means (such as machining cast metal) because you're not only heating the grains to join them together, but compacting them at high velocity.
Even for the more "primitive" 3d printing metal techs, they're just lost wax casting where the original mold is 3d printed. So the results are no worse than any other lost wax cast metal.
And yes, I was hopeful that this was a fully finished, working product. And that I'd be able to download the model. There's little that I'd be willing to pay the premium of laser titanium sintering for, but a micro jet turbine is one of those things.
I've noticed several design suggestions in your code.