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3D Printer Round-Up: Cube 3D, Up! Mini, and Solidoodle
MojoKid writes "3D printing is a fascinating new technology and an exploding new market. The process involved is pretty basic actually. Heat up some plastic, and sort of like that Play-Doh Fun Factory you were so fond of as a kid, you extrude the melted plastic out to create objects. It all started back in 2007 when the first RepRap machine was built. The idea behind RepRap was to design a machine that could build complex parts in three dimensions using extruded molten plastic and that machine could also "self-replicate" or build a copy of itself. Since then, 3D printers of all types have emerged from the community and this round-up of machines covers a few of the more prominent names in 3D printing systems. The Cube 3D, the Up! Mini and the Solidoodle 2 can all get you into 3D printing at retail consumer price points with precision down to 100 microns. The technology has very much come of age and it's going to be interesting to see where these machines can take us."
Whether or not they have a legitimate beef against FormLabs, the act of dragging Kickstarter into their little patent war was absolutely inexcusable. This is a company that sees itself as threatened not only by competition, but by the existence of the marketplace itself.
If you are considering purchasing a 3D printer you could do well to pick a company that won't use your money to suppress competition through enforcement of bullshit patents on abstract ideas like photolithography. Or one whose business model is so insecure that it relies on barratry against unrelated parties.
Disclaimer: I own a MakerBot Replicator 1, and haven't used any of the models published in the article. These printers look promising and have attractive price points, but here are my two big complaints about home 3D printing that none of them address yet, AFAIK.
1. printing with ABS plastic literally stinks. If your printer's in the garage or shop it's probably not so bad, but woe to the user that keeps one of these printers in a home office. Good ventilation is a must, but breezes and drafts can significantly mess with your print quality. I prefer to print with PLA (corn-based) plastic, because it smells like Mrs. Butterworth's imitation maple syrup. Makerbot's already doing this with its Replicator 2-- as I understand it they've given up on ABS for their first version and only print with PLA.
2. Overhangs. I doubt any of these printers can yet print an overhang that's more than 2mm without post-processing support. Gravity tends to pull overhangs down during the printing process, meaning the object's designer has to take the orientation of the printed object into account when designing it. As amazing as home 3D printing is, this is a pretty severe limitation once one gets past printing cubes and scans of heads.
The first company to produce a 3D printer that can handle big overhangs has my upgrade cash.
3D Printing Tips and Tricks at Zheng3.com
Bit extreme, no? I've used Craigslist and eBay both as a buyer and seller and never once have I had a single problem. Sure fraud happens there, but fraud happens everywhere, it is not unique to either platform. All that is required is user intelligence, and kickstarter is not much different except for instead of buying a product that maybe someone will never send you you are buying a product that maybe will never exist. Besides that: Kickstarter, though it has its problems, has also had its deal of successes where people that don't have the ability to make things but have the money to buy them are paired up with people that have the ability to make things but not the money to sell them. The only people that could be mad at Kickstarter are people too dumb to read and understand what they are getting from investing in a campaign (read: good feelings for trying to help out what they perceive as a good idea). If you're backing a campaign because you want to buy a finished product you're doing it wrong.
RepRap only makes plastic parts, not quite two-thirds of itself. Compare that with a serious milling machine (and note not even a CNC one), which can and has made over 95% of itself since the 1940s.....
It's a toy for making cute plastic parts.....