4 ms·

Is 3d printing a 1mm wide cube really something you need "one of the most advanced" 3d printers for? Can't we get better resolution than that with hobby grade h

by edge17 5y ago

Is 3d printing a 1mm wide cube really something you need "one of the most advanced" 3d printers for? Can't we get better resolution than that with hobby grade hardware?

failwhaleshark 5y ago
But it's the most expensive machine that goes "Bing!" in-case the director walks by. My Prusa can print a 1mm cube. Is the complaint that the resolution of hobby machines aren't good enough or that it's using a thermonuclear rocket launcher to squash an ant?
- s1artibartfast 5y ago
  Im assuming you mean your Prusa can print a solid 1mm cube with rounded edges, which is very different than a lattice structure with an overall 1mm size
  - failwhaleshark 5y ago
    Absolutely. Then no. :) I wish I had a 4000 lasers plaid-mode FDM printer able to work in titanium, PLA, ASA, styrofoam, carbon nanotubes, steel, copper, wood, concrete, borosilicate, and EPDM at micrometers.
s1artibartfast 5y ago
>Is 3d printing a 1mm wide cube really something you need "one of the most advanced" 3d printers for? Absolutely! fine features and sharp edges are extremely hard. This is also a fundamental mischaratization of the scale they are working at, as object size /= feature size. the analogy would be images vs pixel. In this case, the image is 1mm, not the pixels I dont have the paper, but the video shows features around 0.25 mm and a x-y resolution of 0.025mm
- Causality1 5y ago
  If you're willing to print slowly, those are not notable specs. A $250 Ender has an XY resolution of 0.01mm and 0.15mm nozzles are common.
  - abakker 5y ago
    I’m not sure, but I’d bet that this is a debate over precision Vs accuracy.3D printers can be pretty precise in relative terms, but they are difficult to make accurate. Extruder style printers struggle with small feature size because the heating and cooling distorts from the reference size. .01mm resolution does not mean you accurately achieve .01mm parts. It means your machine can be commanded to make .01mm moves and will make them repeatably. That said, 3D printers aren’t bad. Small parts are just difficult.
cwkoss 5y ago
It looks like feature size is roughly 0.2mm. This is achievable with hobby grade printers. Even though the video shows an FDM printer, these look like resin prints. Resin printers tend to have better resolution. I might be able to print this with my Ender 3, but I bet a resin printer would do better.
- ragebol 5y ago
  I wonder whether there would be any capillary action on the resin during printing, potentially ruining the print?
- cwkoss 5y ago
  My friend has a secondhand dental resin printer - feature size is 0.075mm. Seems like he could make this structure at a significantly smaller scale than pictured in the video.

by edge17 5y ago

Is 3d printing a 1mm wide cube really something you need "one of the most advanced" 3d printers for? Can't we get better resolution than that with hobby grade hardware?

failwhaleshark 5y ago

But it's the most expensive machine that goes "Bing!" in-case the director walks by. My Prusa can print a 1mm cube. Is the complaint that the resolution of hobby machines aren't good enough or that it's using a thermonuclear rocket launcher to squash an ant?

s1artibartfast 5y ago
Im assuming you mean your Prusa can print a solid 1mm cube with rounded edges, which is very different than a lattice structure with an overall 1mm size
- failwhaleshark 5y ago
  Absolutely. Then no. :) I wish I had a 4000 lasers plaid-mode FDM printer able to work in titanium, PLA, ASA, styrofoam, carbon nanotubes, steel, copper, wood, concrete, borosilicate, and EPDM at micrometers.

s1artibartfast 5y ago

>Is 3d printing a 1mm wide cube really something you need "one of the most advanced" 3d printers for? Absolutely! fine features and sharp edges are extremely hard. This is also a fundamental mischaratization of the scale they are working at, as object size /= feature size. the analogy would be images vs pixel. In this case, the image is 1mm, not the pixels I dont have the paper, but the video shows features around 0.25 mm and a x-y resolution of 0.025mm

Causality1 5y ago
If you're willing to print slowly, those are not notable specs. A $250 Ender has an XY resolution of 0.01mm and 0.15mm nozzles are common.
- abakker 5y ago
  I’m not sure, but I’d bet that this is a debate over precision Vs accuracy.3D printers can be pretty precise in relative terms, but they are difficult to make accurate. Extruder style printers struggle with small feature size because the heating and cooling distorts from the reference size. .01mm resolution does not mean you accurately achieve .01mm parts. It means your machine can be commanded to make .01mm moves and will make them repeatably. That said, 3D printers aren’t bad. Small parts are just difficult.

cwkoss 5y ago

It looks like feature size is roughly 0.2mm. This is achievable with hobby grade printers. Even though the video shows an FDM printer, these look like resin prints. Resin printers tend to have better resolution. I might be able to print this with my Ender 3, but I bet a resin printer would do better.

ragebol 5y ago
I wonder whether there would be any capillary action on the resin during printing, potentially ruining the print?
cwkoss 5y ago
My friend has a secondhand dental resin printer - feature size is 0.075mm. Seems like he could make this structure at a significantly smaller scale than pictured in the video.