公开(公告)号：US20220088852A1

公开(公告)日：2022-03-24

申请号：US17479271

申请日：2021-09-20

Applicant: Formlabs, Inc.

Inventor： Aruni Kacker ,  Andrew DeGonge ,  Garth Whelan

IPC: B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

Abstract: In additive fabrication, less stiff layers generally require a comparatively higher peel force during separation, and that therefore geometric structures that include less stiff layers will also require a comparatively higher peel force during separation. Techniques to lower or otherwise mitigate undesirably large peel forces are described. These techniques include modification to how layers susceptible to a large peel force are formed, modification to a model of a part prior to generating instructions for an additive fabrication device to fabricate the part, and/or improvements to an additive fabrication device hardware.

公开(公告)号：US11945155B2

公开(公告)日：2024-04-02

申请号：US17479271

申请日：2021-09-20

Applicant: Formlabs, Inc.

Inventor： Aruni Kacker ,  Andrew DeGonge ,  Garth Whelan

IPC: B33Y50/02 ,  B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B29C64/282

CPC classification number: B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/282

Abstract: In additive fabrication, less stiff layers generally require a comparatively higher peel force during separation, and that therefore geometric structures that include less stiff layers will also require a comparatively higher peel force during separation. Techniques to lower or otherwise mitigate undesirably large peel forces are described. These techniques include modification to how layers susceptible to a large peel force are formed, modification to a model of a part prior to generating instructions for an additive fabrication device to fabricate the part, and/or improvements to an additive fabrication device hardware.

公开(公告)号：US20210080929A1

公开(公告)日：2021-03-18

申请号：US17026638

申请日：2020-09-21

Applicant: Formlabs, Inc.

Inventor： Benjamin FrantzDale ,  Garth Whelan ,  Amos Dudley

IPC: G05B19/4099 ,  B33Y50/00 ,  B29C64/40 ,  B29C64/386

Abstract: According to some aspects, techniques are described for generating support structures that may be easily removed after fabrication yet provide sufficient structural support during fabrication. In some cases, the techniques may include tuning an extent to which pillars of a support structure are interconnected to one another in regions proximate to the part. In some cases, the techniques may include fabricating very small contact structures, referred to herein as “hair” supports, in regions of a support structure where it connects with the part. In some cases, the techniques may include adjusting the shapes of members of a support structure proximate to a join between the members so that the cross-sections of the members have conformal edges.