5 ms·

That’s a problem with most 3D printers I think. I usually get around it by printing multiple copies of the object at the same time. By the time the printer gets

by valine 9y ago

That’s a problem with most 3D printers I think. I usually get around it by printing multiple copies of the object at the same time. By the time the printer gets around to the first copy it’s cool enough not to cause issues. Obviously it’s a much harder problem to solve the faster you print.

alanfalcon 9y ago
Doesn't work as well when you just want to pop out a quick small prototype so you can test it, iterate, and do it again, but definitely that works for some applications. And as they mention, path optimization can also help here. As a contrived example, if you're building an upside down extruded "T" shape, maybe you could work on building up the stem as high as possible as quickly as possible, and spending the "cooldown" time working on extending and building up the base. I'm not aware of any 3D printers that move beyond the simple "build from the bottom up" approach[1], but it seems possible to take into account the bulk/size/shape of the printhead and do some advanced things -- if the payoff is there. [1] I also know approximately nothing about this space, I'm not speaking from an area of expertise, just novice theory. Maybe this is already being done or maybe it's simply impossible because the printhead is just far too bulky.
- valine 9y ago
  There are some experimental 3D printers that deviate from the “build from the bottom up approach.” Here is a pretty cool 5 axis 3D printer: https://m.youtube.com/watch?v=w8Fl8L4yk8M https://m.youtube.com/watch?v=w8Fl8L4yk8M
  - SAI_Peregrinus 9y ago
    Or production devices. DMG Mori makes a ($250,000) 5-axis CNC that can do 3D printing (selective laser sintering). Example: https://www.youtube.com/watch?v=1TwVkAuvGwM https://www.youtube.com/watch?v=1TwVkAuvGwM
StavrosK 9y ago
The other alternative is to pause the head while the layer cools down. Most slicers have an option for that, although it does increase print times.
- Ccecil 9y ago
  Most slicers have a "slowdown if layer time less than x" setting too...in Slic3r it is in the filament>cooling tab. That is typically a better solution...but in this case I suspect this machine will have issues running slow..so the best bet is to only print large items.

by valine 9y ago

alanfalcon 9y ago

Doesn't work as well when you just want to pop out a quick small prototype so you can test it, iterate, and do it again, but definitely that works for some applications. And as they mention, path optimization can also help here. As a contrived example, if you're building an upside down extruded "T" shape, maybe you could work on building up the stem as high as possible as quickly as possible, and spending the "cooldown" time working on extending and building up the base. I'm not aware of any 3D printers that move beyond the simple "build from the bottom up" approach[1], but it seems possible to take into account the bulk/size/shape of the printhead and do some advanced things -- if the payoff is there. [1] I also know approximately nothing about this space, I'm not speaking from an area of expertise, just novice theory. Maybe this is already being done or maybe it's simply impossible because the printhead is just far too bulky.

valine 9y ago
There are some experimental 3D printers that deviate from the “build from the bottom up approach.” Here is a pretty cool 5 axis 3D printer: https://m.youtube.com/watch?v=w8Fl8L4yk8M https://m.youtube.com/watch?v=w8Fl8L4yk8M
- SAI_Peregrinus 9y ago
  Or production devices. DMG Mori makes a ($250,000) 5-axis CNC that can do 3D printing (selective laser sintering). Example: https://www.youtube.com/watch?v=1TwVkAuvGwM https://www.youtube.com/watch?v=1TwVkAuvGwM

StavrosK 9y ago

The other alternative is to pause the head while the layer cools down. Most slicers have an option for that, although it does increase print times.

Ccecil 9y ago
Most slicers have a "slowdown if layer time less than x" setting too...in Slic3r it is in the filament>cooling tab. That is typically a better solution...but in this case I suspect this machine will have issues running slow..so the best bet is to only print large items.