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Sheet Metal Brake and 3d Printer.
Joules:
Ahhh Linux
:wack:
S. Heslop:
--- Quote from: Joules on September 06, 2018, 04:16:46 PM ---Ahhh Linux
:wack:
--- End quote ---
I've considered it many times in my life.
A fun fact is that I got this windows 7 CD key when my sister got a virus on her new laptop, and I was down visiting a cousin for a few days. And by the time I got back her idiot boyfriend of the time managed to wipe it and install ubunto on the thing. In the end she complained enough that I put vista on it, and the family's been playing musical chairs with operating systems ever since.
awemawson:
I have two legitimate bought copies of WIN7Pro loaded on four PCs which you are allowed to do under the license terms. I recently had to change a motherboard when the video went up the spout on one of them, and went through all the hoops trying to re-authorise it. Neither key would work. Eventually I tried a key from a Dell small form factor that I bought pre-loaded (so don't have the CD) and it worked first time.
I know they need to control pirate copying, but it was stopping me do what I am allowed to do :bang:
nrml:
--- Quote from: PK on September 06, 2018, 08:47:12 AM ---
--- Quote from: nrml on September 06, 2018, 05:25:01 AM ---A 3D printer does not need huge amounts of structural rigidity.
--- End quote ---
My lip hurts.....
A 3d printer needs LOTS of structural rigidity in X and Y because it runs at high accelerations which generate large forces even with lightweight heads.
A 3d printer needs LOTS of mass because it moves repetitively in almost every direction so your only hope is to have the resonant frequency of the structure below every conceivable excitation frequency and the best way to do that is make it massive.
The reason this sounds wrong is because you never see commercial 3d printers built this way and *that* is because a). it's such a price competitive market, and b). they have to be shipped.
Instead you spend you time and money on 32bit controllers trying to tune 3rd order jerk parameters to get the thing to stay still.
There... I feel better now!
--- End quote ---
You are probably technically correct but we are talking of home built printers for hobby use where time and the need to tweak things every now and then are not a major issue but cost is. If we judge every printer by the yard stick you describe, then reprap type and similar printers should have no right to function at all. Yet, there is enough evidence out there that lot of people are able to get what most hobbyists would regard as very good to even outstanding quality prints from surprisingly modest machines.
I don't want to side track Simon's thread, so I'll refrain from commenting any further on this. I am sure he can make up his own mind on how he wants to build his printer.
S. Heslop:
--- Quote from: awemawson on September 06, 2018, 04:54:46 PM ---I have two legitimate bought copies of WIN7Pro loaded on four PCs which you are allowed to do under the license terms. I recently had to change a motherboard when the video went up the spout on one of them, and went through all the hoops trying to re-authorise it. Neither key would work. Eventually I tried a key from a Dell small form factor that I bought pre-loaded (so don't have the CD) and it worked first time.
I know they need to control pirate copying, but it was stopping me do what I am allowed to do :bang:
--- End quote ---
I'm assuming its less piracy and more all those landfills full of trashed laptops and PCs with the little cd key stickers on them being picked up and resold online. And being able to download the iso from Microsoft itself makes it way less shady seeming.
When I was still at school and building my first PC, I asked the IT guy there for advise. And he went and got me a handful of Windows XP professional CDs. But it confused the hell out of me because he didn't also say to copy a key from one of the units, and I was too embarrased to tell him I couldn't make it work. They'd installed Windows NT or something on them all so over a whole school they mustve had at least 200 legit copies of Windows just up for grabs. If only I knew more about computers then. In the end an older kid got me a pirated copy of XP pro and even printed a custom label. That kid collected Psion netbooks which blew me away as a little glimpse into how cool the future of computing could be. And well you know how I feel about the future of computing now that i'm living in it...
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