This masterpiece of design by Hugo Pereira is a Jack-in-a-box, complete. those who have been keeping up with this blog will remember a previous Jack in the Box by Max Hulme and I must admit I like this one better.
The design engineering alone in this model is breathtaking, from the box to the spring and then to the jack, the details here are lovely and structurally amazing.
So many technical elements here, from intense closed-sinks, folds that cause automatic puckers in the spring and just when you think you are near the end a tight pair of accordion folds to make the arms in almost Elias style.
I am so stoked with this, as a first fold. After an hour of pre-folding, the actual collapse took relatively little time considering the complexity of the model. I had relegated this model the “yeah, prolly not” pile because it just looked too hard – indeed, some of the manoeuvres only make sense if you look before, after and what that part will eventually be used for.
Sense of achievement – tick 🙂