In the middle of air

[rkagerer]

Hey, I’ve seen that before!

Anyone else seeing these various Preform bugs

I’ve been doing a lot of printing the last several weeks, and encountered a few various Preform bugs. No time right now to post full instructions to reproduce them, but in the meantime I’m wondering if anyone else has seen these: Importing a model shows “Model needs repair” dialog but the repair progress bar never starts. Tends to happen if I reuse an existing Preform session which was previously working with other model files. If I close and restart Preform it fixes the issue every time (…

It happened to me last year on an older version of Preform. I can’t remember all the detail, but the model it presented on may have had some malformed geometry Preform didn’t like.

I still have the Form files, but when I tried to use them to recreate the issue it seems it no longer occurs for me in either Preform 3.2.1 or the latest 3.2.2.

For what it’s worth here are some more pictures:

Also encountered a support to nowhere:

I found the image below amidst my notes which made me think malformed STL, although when I skim through with the slicer on recent Preform versions I don’t see the inversion present anymore:

I thought I opened a ticket with Formlabs at the time but can’t locate it.

Out of curiosity did Preform prompt you to Repair your STL when you imported it? If you walk through the slicer do you see anywhere the layer footprint “inverts”?