Let's take a look at Thingiverse. Here is the website: the URL is simply thingiverse.com It is full of objects, it's a site that piques our curiosity. There are so many surprising things, silly ones too, all sort of things. So once I looked for an object, which was a Wiimote Tripod, i.e. a 3-legged support to be used with a three-egged support for the board -- for the Wiimote remote control, to create an inexpensive IWB. And I found this object here. You can find so many more or less pertinent things, at times an enormous quantity, it varies: this one is already a rather particular object. And I found this, a project that was uploaded on November 16, 2009. I looked at it and said yes, yes, this is the thing I'm interested in. I downloaded the file and sent it -- I realized I did not have access to a 3D printer yet -- I realized that I could give it to a photocopying service, there are some now to whom you give the file on an USB key, then they give you back the printed object. and you pay But afterwards, I Well, I understood that for my Wiimote, I preferred something a little similar, but different. And so I made a remix. In fact, this one was remixed: it's mine, which I made some time ago. And if you make a remix, well, [the app] asks you to create an account, you create it, etc. etc., OK. However, if we go back in the search I did, there is also this one, which is mine, And I made it on May 28 of this year. So it's a recent thing. Oh, I forgot to go and look: let's go back a little: this one, since November 16, has been -- has been seen 3900 times and downloaded 1782 times. These numbers give an idea of how big today's world is: because something so specific, it seems almost surprising. Mine, which is much younger, has nevertheless -- has been downloaded -- seen 840 times already and downloaded 85 times. This is the object I had created which, as you see, is slightly different. Its shaping is very accurate. It's very simple, here it's written how, with what I created id, with Tinkercad, and with what printer I printed the copies, getting these -- these data, i.e. what kind of thickness of the layer -- These are the settings. Some we can mention are: speed, object filling (check) -- As to instructions, I put little or nothing: there are simply these photos that tell, that show how, basically, the thing works. So here is the object and here is the trestle on which I want to fix it and I had accurately shaped this slot, so I could insert this little wheel. And here is the little wheel in place. After that, it becomes child's play to fix it on the trestle: on this one or on a more pro trestle. And that's how it looks mounted and how it looks mounted on this other trestle. This is a very short example of Thingiverse use.