Rath Darkblade wrote:
Hmmm... the thing I was getting at was that metal knives etc. are far more plentiful (and easier to get) than creating a plastic one. They're also much cheaper than getting a 3D printer, and quicker too (as BBP pointed out).
Here's the thing: if you go into a store or go online an order a bunch of knives — on a personal credit card instead of a business credit card — it will look weird. Now that probably won't stop anyone from completing the sales order, but that also means if you were considered a suspect in a crime, there is a direct, and very easily traceable, connection to your purchasing those knives.
Contrast that with purchasing a 3D printer and the material for it. You can use that device for lots of things, not just weapons. That makes it more difficult to establish a direct connection to a stabbing crime.
Rath Darkblade wrote:
Are 3D printers very expensive? I understand they're in excess of $2,000 or so. If they are, I thought that might stop would-be criminals from getting one (hopefully) - but again, how can a salesman know that a person buying a 3D printer is planning a crime? *shrug* It's not exactly written on their foreheads... :-\
3D printers are expensive when compared to normal printers, but $2,000 isn't really that much when you think of everything a 3D printer can do. Just a few years ago they were easily twice, if not three times, that much, so the cost has dropped considerably.
Plus, you can find 3D printers for a lot less than $2,000 nowadays. Take
this list, for instance. On it, the most expensive 3D printer is $699, whereas the cheapest is $100 USD.
I don't know how good those 3D printers are, but for most consumer purposes, they're probably just fine.
Obviously you'd want something a lot better for professional purposes, but that's the same with nearly all electronic devices.
After all, you can apparently find cheap digital cameras for as low as
$24.95 (normally $60.00), and expensive digital SLR cameras for as much as
$4,249.99 (normally $6,999.95) USD.
I know digital cameras are a more commonly sold and owned item, but my point is that there are always expensive and inexpensive electronic devices sold. 3D printers are no different.