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Very impressive stuff, but looking at the models raises a question in my mind. Why do the parts look like they have about an inch of supporting, sprue-like str
by rdw 12y ago
Very impressive stuff, but looking at the models raises a question in my mind. Why do the parts look like they have about an inch of supporting, sprue-like structure beneath them? Wouldn't it be better to have them be closer to the surface so as little material is wasted in the supports as possible?
- pokpokpok 12y agosometimes these structures act as heat sinks to ensure even heat dissipation throughout the part and improve conformity
- Kliment 12y agoThis is a photopolymer printer - while the reaction is mildly exothermic, the amount of heat produced is negligible.
- deleted 12y ago[deleted]
- sammermpc 12y agoThe supports are necessary, as they are in most 3D printers that aren't using a powder substrate, to hold the part as it's printing in air. The specific distance from the build platform is determined in software, and is a consequence of a variety of factors, having to do with optimizing resin flow around the part, to ensuring adequate adhesion to the build platform.