More perimeters = more strength in FDM printing. For rigid plastics like PLA
that also increases stiffness.
Several years ago, Benelli was designing a new auto loading shotgun and they
had a problem with part of the bolt breaking. They made it thicker serveral
times, they tried different metals, they tried different hardening treatments
but the part would always eventually break. Then they applied some better
analysis techniques to find how the part was trying to flex when the gun was
fired and made a bolt with that part thinner than the first one which broke.
Allowing the part to flex stopped it from breaking, and the lighter weight
increased the cycling speed to the point where some trick shooters were able to
break longstanding records like how many clay targets they could hand toss into
the air and shoot before any hit the ground.
So rather than tying to make the part ever stronger, and thus less flexible,
you need to see what can be altered in the 3D model to make the area where it
breaks more flexible.
On Tuesday, August 18, 2020, 5:23:58 PM MDT, Frank Tkalcevic
<[email protected]> wrote:
> the middle of a now thicker and nuch denser 6 wall build. cura settings
> are for 6 line walls, 15 ipm and 30 ipm.
6 line walls/perimeters is a large number. My default setting is 2. Less
perimeters also prints a lot faster. If the part is weak, you can always
increase it later, but it sounds like you are still having issue with the
extrusion flow rate.
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
