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