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Offline floris497

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Re: 3D nSpire Dock
« Reply #45 on: September 10, 2013, 07:31:03 am »
Well thats a really hard question, I think the have no idea what they start.

if people are able to make good guns with 3D printers that can mean the end of 3D printing in a lot of countries :(
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Offline DJ Omnimaga

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Re: 3D nSpire Dock
« Reply #46 on: September 11, 2013, 02:26:51 am »
Well, the thing is that 3D printers use plastic for objects IIRC. I doubt that a gun would survive very long if it was made of plastic only. Also I wonder how does printers copy the inside of objects anyway?

I think the main issue would have been people using them to make key duplicates illegally or stuff like that. Hence why I was suggesting that copied stuff is made slightly smaller or larger. That said, if government was to ban everything that can be used for criminal activities then they would have to ban knives, calculators, cars, doors, sheet of papers or anything else that can be used as a weapon, or green houses, gardens, etc, which can be used for criminal activities such as growing weed.
« Last Edit: September 11, 2013, 02:31:19 am by DJ Omnimaga »
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Offline Sorunome

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Re: 3D nSpire Dock
« Reply #47 on: September 11, 2013, 08:05:32 am »
Quote from: DJ Omnimaga on September 11, 2013, 02:26:51 am
Well, the thing is that 3D printers use plastic for objects IIRC. I doubt that a gun would survive very long if it was made of plastic only. Also I wonder how does printers copy the inside of objects anyway?
Well, you more or less print 'em from a 3d-file which also shows the internal structure, how to obtain that one? The only way i know - make one on your own! I also recall reading a article about 3D-printer dev for printing metal objects
Quote
I think the main issue would have been people using them to make key duplicates illegally or stuff like that. Hence why I was suggesting that copied stuff is made slightly smaller or larger. That said, if government was to ban everything that can be used for criminal activities then they would have to ban knives, calculators, cars, doors, sheet of papers or anything else that can be used as a weapon, or green houses, gardens, etc, which can be used for criminal activities such as growing weed.
nuuu, not the calculators D:
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Offline Hooloovoo

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Re: 3D nSpire Dock
« Reply #48 on: September 11, 2013, 11:40:55 am »
Yes, some 3D printers can print metal. They roll out a very thin layer of finely powdered metal, and then a high-powered laser sinters (basically fuses) particles together. you cannot print metal and plastic together because the metal gets a bit warm :P. Our school also has a plastic one that works like this, except that it rolls out a layer of plastic particles, then uses epoxy to glue them together.
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Offline willrandship

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Re: 3D nSpire Dock
« Reply #49 on: September 11, 2013, 10:21:05 pm »
3D printed guns are just a fad, part of the whole "We can print anything" mentality. They are far less practical than far cheaper homemade guns using a lathe. 3D printed plastic is fairly expensive.

Sintered printing is actually incredibly weak. It would be worse than the plastic for making a gun. Sintering is not quite as strong as soldering, and neither are anywhere near as strong as a proper forged piece of metal.

tl;dr you can't make GOOD guns with 3D printers, even the fancy metal ones.
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Offline Sorunome

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Re: 3D nSpire Dock
« Reply #50 on: September 12, 2013, 10:29:48 am »
Maybe in the future you'll be able to :P

EDIT: maybe we should split the topic......
« Last Edit: September 12, 2013, 10:30:05 am by Sorunome »
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Offline Hooloovoo

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Re: 3D nSpire Dock
« Reply #51 on: September 12, 2013, 11:36:52 am »
I am wondering what you are going to use for the dock connector? I can't seem to find anything that has the right pitch.
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Offline Lionel Debroux

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Re: 3D nSpire Dock
« Reply #52 on: September 12, 2013, 02:20:13 pm »
It's an uncommon pitch, indeed.
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Offline floris497

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Re: 3D nSpire Dock
« Reply #53 on: September 12, 2013, 03:08:23 pm »
Quote from: fortytwo on September 12, 2013, 11:36:52 am
I am wondering what you are going to use for the dock connector? I can't seem to find anything that has the right pitch.

how do you mean like how to connect it? what kind of connector?

i also cant find any connection of usb over the dock @ 19,20,21. someone told me the rx tx are 100mV so not 5 and if i don't connect the power it might work. but the nspire software didn't recognise the calc :( (maybe i already broke it..)
« Last Edit: September 12, 2013, 03:13:51 pm by floris497 »
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Offline critor

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Re: 3D nSpire Dock
« Reply #54 on: October 09, 2013, 01:12:26 pm »
I could finally identify the 2nd USB port pins on the TI-Nspire J01/Dock connector:
pin 21: USB Data+
pin 20: USB Data-

But it seems that we'll need to put some more electronic on those pins before it works:



Source with more information:
http://tiplanet.org/forum/viewtopic.php?p=149793 (in french for now)
« Last Edit: October 09, 2013, 01:13:56 pm by critor »
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Offline Jim Bauwens

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Re: 3D nSpire Dock
« Reply #55 on: October 09, 2013, 03:30:01 pm »
That would be most likely a voltage regulator (5v to 3.3v TTL). Well that's what I assume at least.
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Offline floris497

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Re: 3D nSpire Dock
« Reply #56 on: October 09, 2013, 04:17:55 pm »
Quote from: critor on October 09, 2013, 01:12:26 pm
I could finally identify the 2nd USB port pins on the TI-Nspire J01/Dock connector:
pin 21: USB Data+
pin 20: USB Data-

But it seems that we'll need to put some more electronic on those pins before it works:
{Image}


Source with more information:
http://tiplanet.org/forum/viewtopic.php?p=149793 (in french for now)

that means i can go and work on the circuts for the dock.

Quote from: Jim Bauwens on October 09, 2013, 03:30:01 pm
That would be most likely a voltage regulator (5v to 3.3v TTL). Well that's what I assume at least.

usb should be 100mV for the data cables, so not sure? (hope i'm correct at this one)
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Offline willrandship

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Re: 3D nSpire Dock
« Reply #57 on: October 11, 2013, 05:38:03 pm »
If the USB is running at 100 mV, there's no way you'll get a computer to see it without getting some serious amplification, and it seems extremely odd.

Are you sure you're not all meaning to say 100 mA? That would make far more sense.
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Offline Hooloovoo

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Re: 3D nSpire Dock
« Reply #58 on: October 12, 2013, 09:28:41 pm »
Yes, it would be odd to have 100 mV USB. From what I can tell from looking at the insides, there is no difference from the USB on the dock and the USB on the top of the calculator, other than the dock is missing some of the protection circuit. They are separate on the inside of the calculator, so it's not the same port as the normal one.
« Last Edit: October 12, 2013, 09:29:16 pm by fortytwo »
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Offline willrandship

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Re: 3D nSpire Dock
« Reply #59 on: October 13, 2013, 03:52:45 am »
I'm surprised there is 100 mV anything since the lowest I've ever heard ttl "high" voltages being is still above 1V. A 100mV signal would be considered "low" by most logic circuits. This would mean they are intentionally decreasing the signal voltage out of the CPU with amplifiers, which doesn't seem to be the case.

100 mV is INSANELY low for transistor logic.
« Last Edit: October 13, 2013, 03:53:13 am by willrandship »
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