@Rosketch install the Sketchucation ExtensionStore (it is required for license management, anyway) and use it to install Curviloft and the required LibFredo6. Once they are installed go to Tools>Fredo6 Collection>Curviloft>License.

In the license panel click on Purchase License.

What version of SketchUp? What operating system?

You could try switching to the classic graphics engine and see what happens.

Also make sure you have the latest graphics drivers from nVidia.

What graphics card? Which graphic engine is selected?

@DoCelikkol what version of SketchUp? What's the radius of the round over? Your GIF leaves out important information.

@Leggy said in help with a thread:

where is it?

@Leggy said in help with a thread:

I'm making progress.

OK. So you don't need the video tutorial I did? Good enough.

Close Sketchup. Go to user/AppData/Local/SketchUp/SketchUp 2025/SketchUp and open PrivatePreferences.json. Look for "ThreeDTextDlg". What are the "x" and "y" values? Edit those to move the dialog onto the correct screen. This is what it looks like on my computer.

And here's the dialog relative to the top left corner.

Note that the user/AppData folder is normally hidden so you'll need to make hidden folders visible in File Explorer.

Did you install SketchUp 2025 correctly? That requires right clicking on the downloaded installer and selecting Run as administrator. If you didn't do that it's possible that Windows is preventing SketchUp from making suitable updates to PrivatePreferences.json. To ensure SketchUp is installed correctly, close SketchUp, find the installer in your Downloads folder, right click on it, choose Run as administrator, and when prompted, click Repair. No matter what, it won't hurt to do it.

@puttea what version of SketchUp? What operating system?

So what's your problem in trying to model it in SketchUp? What's not working?

@Leggy said in help with a thread:

there are only 4 crests on the thread
When you model it make it 2 or 3 turns longer so you can cut the extrusion off nicely.

Are you trying to model a cap or the neck of the container? What is it exactly? I've been trying to find real specifications for the threads on screw top containers but based on what little information you've provided, it's been a waste of time.

@Leggy said in help with a thread:

pitch 2.7 mm

I expect your first problem is you are measuring the pitch incorrectly. From your images it looks like the pitch is closer to 5mm.

So far you haven't told us what your actual problem is in modeling these threads. I've shown you before how to model screw threads. The process is the same with these. Start with a helix and profile. Use Upright Extruder.

The method Rich described will work fine, too.

@Steve-Rugg said in More Fredo6 plugins becoming paid extensions:

how do I know what extensions that covers?

Each license is for a single extension. The extension is named in the license file. This is a license for FredoCorner.

As for which one you bought, click on PluginStore and then My Licenses.

@EF22 said in More Fredo6 plugins becoming paid extensions:

thank's but I dont' see libfredo in Window - I use skp on mac

Did you install LibFredo6? If not suearch for it in the Sketchucation ExtensionStore tool and install it. Then quit and resart SketchUp.

What version of SketchUP are you using?

Thank you gentlemen.

@Rich-O-Brien thankee sir.

Cheek blocks for a small sailboat. Rendered in Vray.

Try my suggestions of softening and hiding the edges. You could also consider radiused edges instead of the hard square edges you have.

How are you going to use this model when it is complete? How large is it? Will those corners really be seen? Maybe simply softening the edges where the flats meet the radius would be enough. Maybe hiding the edges on that component altogether would do it. Simple and quick and without creating a lot of file bloat.

What version of SketchUp are you using? That would tell us what tools you are using and have available.

@majid thank you. Are you referring to the animations I posted?