 Re: 3D Printers and RepRap project
The material properties are what make the difference between the two mediums, & of course most 3d printers don't use lasers (which is where the cost is).
There are enough 3d printer systems out there now to replace Laser sintering machines. Stratasys offer a good material range & low cost machines. I too am affraid that SLS machines have run their course for plastics.
A Particularly good new commer to the 3d Printer schene is Objet...by far the best surface finish (you can even print Mat of Gloss!). & there is nothing to stop you taking a mould. No Hand finishing required, Build sizes in excess of all other RP technology (up to 500mm), & cheap machines too. The materials will get more advanced, but are comparable with SLA technology for now.
The Future is Rapid manufacturing machines...They can be Electron beam or laser sintering devices which produce metal (Ti, steel, gold, copper etc..). with full wrought properties. The technology is as expensive as the current SLS devices but the parts produced have real wrought metal properties. The Surface finish is still not perfect, & you should consider the technoilgy replacing casting...Generally machining will be required to finish the part...
Watch out SLS Patterns & Investment Casting!!  |