The Problem of Marty
OK the title is clickbait
Marty described some time back, how the best place to mount a model was: On the Printer.
But I reckoned my model should have a place more special than my old printer.
It has a stand, which shows it quite well. And I put it on the oscillating heater.
Watch on youtube.com
But I had read about Tensegrity and wondered if I could do something with that notion.
It’s a tricky thing to build, given all the support is provided by tension members. So you end up making a jig to hold it in final position, and then rigging it with a bit of tension

It does not stand up by itself

Once loaded, it finds (a somewhat fragile) equilibrium.

The breeze from walking past it, is sufficient to send it oscillating.
But it has good loadbearing capacity, given I used 40lb fishing line for the tension wires.
So of course, you want to test it with something more substantial

The Centre of Gravity needs to be very slightly downhill from the wires to be stable.

With log load, the thing weighs over 1 kg, but it held firm. However the main loadbearing wires stretched a bit overnight and the CAT walked off the platform.
The accompanying crash startled the household somewhat.
The SE5A is back on the stand, but the CAT is such a beautiful thing, I took it outside for a Walk in Nature.
Marty described some time back, how the best place to mount a model was: On the Printer.
But I reckoned my model should have a place more special than my old printer.
It has a stand, which shows it quite well. And I put it on the oscillating heater.
But I had read about Tensegrity and wondered if I could do something with that notion.
It’s a tricky thing to build, given all the support is provided by tension members. So you end up making a jig to hold it in final position, and then rigging it with a bit of tension

It does not stand up by itself

Once loaded, it finds (a somewhat fragile) equilibrium.

The breeze from walking past it, is sufficient to send it oscillating.
But it has good loadbearing capacity, given I used 40lb fishing line for the tension wires.
So of course, you want to test it with something more substantial

The Centre of Gravity needs to be very slightly downhill from the wires to be stable.

With log load, the thing weighs over 1 kg, but it held firm. However the main loadbearing wires stretched a bit overnight and the CAT walked off the platform.
The accompanying crash startled the household somewhat.
The SE5A is back on the stand, but the CAT is such a beautiful thing, I took it outside for a Walk in Nature.


Apologies for the huge pictures I am seeing.



