[TC14] Excalibur (Top Spin)

[Erik Leppen]

1 hour ago, Akbalder said:

I really like this one! 

The way the the gate controls connect to the seats restraints is clever.

Thanks! Yes, that was actually one of the first challenges I recognized. If you scroll back in the topic, you see in my second update I already noted this and started looking for solutions. If there's one thing this competition brings, it's mechanisms which are completely new. No steering or suspension or function switchboxes this time, but completely novel engineering solutions.

 

31 minutes ago, RohanBeckett said:

well done!  very authentic movements! 

and I love the mix of manual, and motorised controls.... really looks like it'd be a lot of fun to play with!

Thanks, and yes, it is indeed fun to operate! I had it with me on a meeting last Sunday and there were some people who asked to try the thing themselves.

 

4 minutes ago, BrickbyBrickTechnic said:

That is so cool! Definitely my favorite so far, I love how you combined manual and power functions and how everything works so smoothly!

I'm actually quite proud of how everything worked out. I was surprised by the strength of the motors. Although I do notice that with all three motors unning, the L motor has trouble inverting the bench, because the center of gravity is not aligned with the rotation axis.

The only minor problem with the operation is trying to align it nicely when the ride ends. It rotates quite fast, so getting it to "end" on an approximately vertical and upright position is a challenge (you notice this in the video). I toyed with the idea of a slow/fast gearbox, but this added too much friction and would have limited the output power too much to work. Better keep it simple. :)

[Josephiah]

Brilliantly executed - accurate motions, and love the folding rails. There used to be one of these that would come with the fairground every year (complete with the independently moving arms with hinge, as in your version), which I was always too scared to go on. Can't remember what it was called, but it had a purple colour-scheme, with lots of spotlights and the words "hasta la vista baby" on the underside of the carriage.

[pagicence]

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Edited June 5, 2025 by pagicence

[Seasider]

Great model Erik, seen one in real life and it’s a scary looking ride. I like how you realised the control panel.

Edited September 2, 2018 by Seasider