Get extremely speedy prints??

[jeffhuber]

Hey everyone,

Sometimes you just want to print something really fast, and the quality or structural integrity of the print isn't your biggest concern. Maybe you want to see it in real life before dedicating all the time to getting it perfect.

In these cases... what settings do you guys use with ABS to speed things along? (or PLA, PET, or nylon for that matter)

For example, what do you set for layer height, vertical shells, horizontal shells, infill density and pattern, speed, etc

[Generic Default]

I usually do slow prints with a tiny nozzle for perfect details.

But if you want something now;

0.25 Layer height
1mm Shell thickness
25% Grid infill
80mm/sec Speed

And make sure your jerk/acceleration are high. Those really help a lot with infill, since changing direction takes up a lot more time than you think.

If you have the option to go slower on outside perimeters, do it. Fast infill, slow perimeters.

Crank up your temperature to the maximum your setup allows for good layer bonding at higher speeds. With the stock SeeMeCNC hotend, do 240 degrees for ABS.

If you use trimmer line nylon, crank it to 280 degrees and your prints will NEVER break!

[Polygonhell]

It depends to some extent on what you are testing, with a 0.5mm nozzle about the largest layer height you can get away with is 0.4mm, but often I'm testing clearance if I'm printing something and layer height can affect that.
Depending on the part, you can probably get away with 10% fill or no fill.
I usually run 1 perimeter if it's a test, 2 or 3 solid layers.
Perimeters I'll run around 60, and infill upwards of 100.
With PLA running hotter will let you print faster.

But in a lot of cases you don't get the speed improvement you expect, at high print speeds Jerk and Acceleration become dominant and any minimum layer time in the cooling tab can also have a dramatic effect.
In the end I usually just live with the settings I intend to print with and model/print separate small pieces to test thing like clearance before I commit to a long print.