greybeard
Posts: 178
Joined: Mon Mar 02, 2015 1:23 pm

Supports Bug

Several times I noticed support structures were not consistently placed and sized.
I managed to get what I needed but usually taking great pains to get there.
I noticed this: using the same profile on the same part and generating supports, the results were sometimes different when preparing to print... Then, I noticed supports were not behaving...

Attached image show upper part of support hanging in mid-air.
I used 2mm resolution in the profile but, the supports panel show 5.0mm.
The pre-print graphic shows the 2mm supports but the ready-to-print graphic show 5mm.

On other prints... well, just as random...
Images and Factory file attached
Attachments
Pre-Print and Ready-To_Print
Pre-Print and Ready-To_Print
Settings
Settings
Pi3_box3.factory
factory file
(76.17 KiB) Downloaded 115 times
3D Print Parts
https://www.thingiverse.com/Still_Breathing/designs
dorsai3d
Posts: 237
Joined: Mon Jan 11, 2016 9:01 am

Re: Supports Bug

The support pillars before you prepare to print are only defining the area to support. The spacing of the printed support lines is determined by the support infill.

The supports you show hanging in midair are still connected to the other supports via the perpendicular lines, and this happens a lot when the supported area changes.

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