Bin renders as a filled box at specific z height

[martinjuhasz]

Hey,

i'm using the gridfinity-rebuilt-bins.scad script and only changed parameters in the customizer. Once my bin reaches a specific z height, the bin no longer renders as a bin, but basically as a solid block. It doesn't matter which type of gridz_define i use, as soon as i reach this phyical height, it gets rendered as a block. The preview is always fine, but render and stl are not.

I have basically only changed the basic parameters. if i set a custom internal height other 0, it works. but this is not what i'm looking for as this also looses details like round edges.

Any ideas what might be wrong here?

P.S.: Thanks for this. This is an awesome script and i will extensively use it ;)

[martinjuhasz]

So i tested some more and this seems to be related to macOS (Monterey in my case). Didn't matter if i used the 2021 or 2023 build of OpenSCAD or if fast-csg was enabled.

When using Windows10 with the same settings it seems fine.

[kennetek]

That is very strange. I tried to replicate the issue by making a 20 unit tall bin, but it worked just fine. I am on Windows 10 using OpenSCAD 2022.11.13.ci12787 with fast csg. Sounds like Mac is the issue, thankfully (I thought I did something terribly wrong...).

[martinjuhasz]

Is there any way we can debug this to make it work on macOS? Would be a bummer if this script would only run on windows although OpenSCAD is universal.

Let me know if i can log you any variables or something. I mean, everything looks fine except the internal height. so maybe it's a simple fix.

[Ruudjhuu]

I tried to reproduce this on a MacBook Pro:

and could not reproduce:

openscad info:

OpenSCAD Version: 2023.02.13 (git d7c5543dc)
System information: Mac OS X Version 12.6 (Build 21G115) MacBookPro15,1 8 CPUs 16.00 GB RAM 
User Agent: OpenSCAD/2023.02.13 (git d7c5543dc) (Mac OS X Version 12.6 (Build 21G115) MacBookPro15,1)

Could this issue pop up due to some setting? Maybe try to purge all settings regarding openscad from your system and reinstall? or maybe your system has a m1 processor? I don't think the issue is in the code as openscad "should" act the same on different OSs.

@kennetek for the future a tracing feature could be added so we could easily see which path the code took to check if the code is executed as expected. just a thought.

[martinjuhasz]

good to know. i just installed OpenSCAD just for this, so default settings for me. and no M1.

@Ruudjhuu can you increase the height even more? with the current settings (overall height) still is still below where it broke for me.

[Ruudjhuu]

Of course

[kennetek]

I have no clue how to fix this, and don't have time right now to figure out code checking. Maybe in the future. I don't have a Mac to test with either, so unfortunately I don't think I can help.

[martinjuhasz]

Sure no problem. We'll see if this even will happen to another person or if it's just some iffie hardware/sofware config hicckup. I'll do the Windows dance for now.

[Ruudjhuu]

I added some diagnostic tracing information to this repository. @martinjuhasz, could you try to reproduce the issue again on the branch of #74, set tracing = true and copy the console output here (preferably an attached file). This way I can compare the program flow on your machine vs my machines and check for differences.

[tobymurray]

I think I ran into a similar or related issue?

• OpenSCAD: version 2023.10.15.ai16550 (git 70309bcaa)
  • also tried OpenSCAD version 2024.01.14.ai18102 (git ffb0152f1)
• gridfinity-rebuilt-openscad: e7478a7dc
• Ubuntu 22.04

Opening gridfinity-rebuilt-bins.scad, I see:

The output bin is actually solid though, not just rendered as such:

Edit: I opened https://github.com/kennetek/gridfinity-rebuilt-openscad/issues/147 as it seems like this might be different? :shrug: