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Comment: Re:Efficiency? (Score 1) 234

by Zeussy (#46886717) Attached to: Toyota Describes Combustion Engine That Generates Electricity Directly
You might need a set of sleeve valves or similar to seal off the intake ports. So the combustion chamber of the deactivated cylinder can act as the air spring.

I wonder if there is a limitation to how much power you can make from that size of linear generator/stator though, so you wouldn't get much advantage, I don't know that much about that side of things though.

Comment: Re:Efficiency? (Score 1) 234

by Zeussy (#46884783) Attached to: Toyota Describes Combustion Engine That Generates Electricity Directly
The other thing the article doesn't state, is that the cylinder and head design is similar to 2 stroke diesels. With exhaust ports at the top, and intake ports at the bottom, blocked off as the piston moves up. They generally use a supercharger or a turbocharger to force the exhaust gases out and the fresh intake charge in, so I assume this design is using some sort of electric supercharger in it's place.

Comment: Re:Multi-Monitor Support in 2013?!? (Score 3, Interesting) 278

by Zeussy (#44399865) Attached to: Ask Slashdot: Hardware Accelerated Multi-Monitor Support In Linux?
I'm confused by this. I have 7 monitors on one machine, 3 connected to an AMD Radeon, the other 4 connected to a Nvidia Geforce (using a matrox triple head 2 go, to make 3 appear as 1 monitor to the card). And it all works seamlessly. Even have 3d applications/meda players spanning across them and it works. (Not quite sure how the 3D side of things work, backbuffer from one copied to the other?)

Comment: Re:Age old "issue" (Score 1) 426

by Zeussy (#43419477) Attached to: "Micro-Gig" Sites Undermining Workers Rights?
Depends, if the work is done under warranty, the manufacturer has how many hours they estimate the job to take. And that is what the dealership will get paid to do the work. If the mechanics takes longer, than the dealership gets screwed but that isn't your problem. These book hours may be used as estimates for out of warranty repairs, and if the customer quibbles they can claim that is what the manufacturer estimates the job will take. Independent mechanics, different story of course.

Comment: Re:Europa was discovered in 1610 by Galileo... (Score 1) 164

by Zeussy (#43089099) Attached to: Discovery Increases Odds of Life On Europa
I can remember reading an article about how landing on mars was a bitch compared to the moon or earth. Earth has a descent amount of atmosphere, so you can rely on aero braking then parachute. On the moon you have no atmosphere so you can fire rocket engines in the direction your flying, and do a powered descent.

Mars has the problem of so little atmosphere that aero braking barely slows you down to a speed where you can open a parachute and not have it ripped apart as you are still travelling at supersonic speeds. And the atmosphere is just thick enough to upset rocket engines firing into the oncoming stream/airflow so you can't do a powered descent.

+ - Public Domain Prosthetic Hand->

Submitted by Zeussy
Zeussy (868062) writes "While looking around thingiverse for something to 3D print. I found this awesome public domain prosthetic hand designed for a 5 year old child called Liam, who was born without any fingers on his right hand. The design simply using parts either 3D printer and brought from your hardware store. It is body powered via cables and bungees, see it in action here. They are currently running a fundly Fundraiser, give them your support!"
Link to Original Source

Comment: Re:3D printing was interesting last year. (Score 1) 91

by Zeussy (#42346547) Attached to: 3D Printer Round-Up: Cube 3D, Up! Mini, and Solidoodle

I tend to agree. Trying to weld a hot thing to a cold thing never works well. The process is touchy and unreliable.

I think I may of replied to you before, but parts from my Solidoodle are very strong. The heat transfer from the extruder when printing at 0.3mm is more than enough to slightly melt the previous layer and fuse them. Printing at 0.1mm makes an almost seamless print. When printing with a heated bed, in an enclosed space the whole print is slightly tacky and soft. The prints do have a grain, and that is the weakest part, but you can design items with that in mind. If you are worried about printing something out of ABS/PLA that is going to fail due to stress, having it injection molded isn't going to increase the strength factor by enough margin to stop it breaking.

Comment: Re:TFS writer didn't read TFA (Score 1) 70

by Zeussy (#42304835) Attached to: Engadget Experiences the Solidoodle 3 3D Printer
Although the base SD2 comes with no bed heater which makes it basically useless. The bed heater upgrade has "crept up" from $49 to $99. Although now some people are modifying theirs to not use the underpowered bed heater, but to use a large silicon heat mat instead. So if you want to go that option the base model is useful.

We can defeat gravity. The problem is the paperwork involved.