4 ms·
Are there any pictures of a finished part? I'm assuming there would be features that need to be cleaned up after a print, but this looks incredible. I wonder
by TOMDM 4y ago
Are there any pictures of a finished part?
I'm assuming there would be features that need to be cleaned up after a print, but this looks incredible.
I wonder what the cost savings are like vs a 6dof CNC mill for parts that can be made that way.
- monkpit 4y agoNot only that, but if you can print finished parts you can engineer parts that cannot be physically machined.
- TOMDM 4y agoYeah, the ability to rapid prototype parts with occluded cavities that can't be machined by a CNC makes this a compelling capability all on its own.
- dekhn 4y agoExample: https://www.thingiverse.com/thing:1068443 https://www.thingiverse.com/thing:1068443 if not impossible, would be very difficult to machine, but is straightforward for a printer.
- etrautmann 4y agoGreat point, though I think this isn’t a great example - it should be straightforward to machine that part with a 5 axis cnc since all of the suns rays pass straight through and an end mill could approach from each of those angles as well.
- ezekg 4y agoA better example would be https://www.thingiverse.com/thing:220785 https://www.thingiverse.com/thing:220785
- SV_BubbleTime 4y ago>6dof CNC mill 6-axis, dof is the wrong term here.
- defterGoose 4y ago5-axis. No one uses Stanford arms for milling strong materials. The sixth axis would be redundant with the spindle rotation anyway.
- SV_BubbleTime 4y agoI was correcting one thing at a time. We use a 6-axis laser at my work, I’m only hobbiest machinist level at best.
- TOMDM 4y agoEither way I appreciate the corrections from both of you!
- amelius 4y agoI wonder if you can make screw threads and how fine using this technique.
- Intermernet 4y agoYou can, but they usually require re-tapping / re-dieing. This is usually easier and less wasteful (from a material point of view) than tapping / dieing a drilled or lathed part, but involves careful calibration in order to end up with a good finish. If you don't really care about "machinist fit" threads you can usually get away with 3d printed threads, but they'll bind, or have lots of backlash, or both.
- rsfern 4y agoI don’t think there are full part builds related to this study. this group does these cool single track experiments where you can follow along with synchrotron x-rays and get really good structural data through the whole solidification process. So it’s more basic materials science than applied at this point. Someone else posted a link to the paper