Meanderer trike redesign (again)

Here are recent posts:

"Setting up a home metal workshop"
https://bkhome.org/news/202511/setting-up-a-home-metal-workshop.html

"Simple design for a wheel-knuckle"
https://bkhome.org/news/202511/simple-design-for-a-wheel-knuckle.html

"Meanderer trike YouTube video PART4"
https://bkhome.org/news/202510/meanderer-trike-youtube-video-part4.html

...the video shows the front suspension assembled, and tilting works well.

However, I have pulled it apart. It will be rebuilt with some significant changes. I have modeled it in SolveSpace, and this is how it now looks:

...lots of extra pieces and holes for mounting. I bought larger rings; before, they were 100mm ID and 12mm rod diameter, now 120mm ID and 14mm rod to allow more tilt and greater strength. The swivel-rod running along the bottom is increased from 12mm diameter to 14mm, and the distance of the rod below the 40x40 square backbone is increased to allow more turning of the steering arm. Highlighting a couple of new features:

The red loop is where coils will be attached, that will restrain the tilting to prefer being upright. So when riding along, the trike will naturally tend to stay vertical. That's the expectation anyway.

The green loops are mount points for future experimenting, maybe for tilt damping, or mechanical tilt linkage. Thought might as well put these in, in advance.

Here are dimensions:

And another orientation:

All of the above was constructed in SolveSpace. As time goes on, I learn more how to use it. For example, only a week ago I finally found out how to construct a toroid, that can be seen above. I only found vague instructions online, clear as mud. Nothing in the official tutorials. But, put together enough understanding to be able to do it.

The swing-arms and wheel-knuckles are another story. In one of the above links, I posted that was going to increase the kingpin tilt to 13 degrees off vertical; but no, staying at 6.5 degrees. Reason will be explained.

Construction of the wheel-knuckles is still next on the agenda.   

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