I finally solved it! It was a dodgy plugin/extension. I don't know which one, but luckily it wasn't one of the ones I use constantly. I probly had 50 old plugins from years ago that I've never used. This only became clear when the Space Mouse in the trial version of SU24 stopped working after I had loaded a few Bundles of Extensions. So I did a clean re-install of SU24 and loaded my necessary plugins one by one. I stopped when I had everything I needed and all was good. Then back to SU19, I used the Extension Manager in SU to uninstall everything except the proven ones in SU24 and bingo, all is as it should be. Note: Rich's suggestion of a 'Vanilla" install, (see above), did not work in my case, though I don't see why it wouldn't. Cheers and Happy New Year to you all.

@August said in Turtle Graphics for Sketchup: Turtle Graphics You would need to piggy back on the API to have implicit commands similar to Turtle-type behaviour. In SketchUp you can use [#,#,#] to infer the [x,y,z] location in 3D space to place an object or point. But in all instances it requires user input to pick the tool and/or the first point. I know of nothing that allow you to draw in the manner you need. You could try @alexschreyer OpenAI extension: https://sketchucation.com/plugin/2643-as_openaiexplorer Or @samuel_t Parametric Modelling extension: https://sketchucation.com/plugin/2387-parametric_modeling Both have that type of capability of command based drawing. I like the latter for parametric block out. You could use the Ruby Console to draw in the same way as you could use a chainsaw to trim your fingernails. Try asking Claude.ai for ideas to get you a primitive example you could build on.