OT: 3D printer infill for round spacers?...

J

John Doe

Guest
What are the best infill patterns for round spacers?
Does it matter?
Do you use triangular or square infill patterns?

Thanks.
 
It doesn\'t really matter since the force is almost always \"down\"
relative to the print. I almost always use the old \"rectilinear grid\"
infill because it\'s fast and nearly as strong as others in the \"down\"
direction.

If you need more strength, just increase infill%. I use 70% for such
parts, which is nearly as good as 90% but, again, faster.

90% is IMHO the largest infill you should ever use, because it allows
for flow calibration errors without your part overfilling with plastic.
 
DJ Delorie wrote:

It doesn\'t really matter since the force is almost always \"down\"
relative to the print. I almost always use the old \"rectilinear grid\"
infill because it\'s fast and nearly as strong as others in the \"down\"
direction.

If you need more strength, just increase infill%. I use 70% for such
parts, which is nearly as good as 90% but, again, faster.

90% is IMHO the largest infill you should ever use, because it allows
for flow calibration errors without your part overfilling with plastic.

Can you guess why increasing the infill from 50 to 70% caused the inner
surface of the doughnut (a very thick washer) to mess up?

Fan?
Layer thickness?
Line width?
 
John Doe <always.look@message.header> writes:
Can you guess why increasing the infill from 50 to 70% caused the inner
surface of the doughnut (a very thick washer) to mess up?

The only thing I can think of is that your extrusion rate isn\'t
calibrated. Or your slicer is broken, which is unlikely. You *should*
be able to print a 10mm cube at 100% infill and have the top surface
come out nearly perfect.

You may also need more \"top solid\" layers to hide whatever infill does.

> Fan?

I\'ve got three. Always on 100% after the first layer.

> Layer thickness?

I prefer 0.2mm for default prints.

> Line width?

I prefer 0.5mm for default prints.
 

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