In this post, you can download a pack of 3 patchs.
One of them called object builder dynamicaly generates the function of an expr~. From that you can do it for an expr.

https://forum.pdpatchrepo.info/topic/13773/simple-physical-modeling-equations/6

A modal synthesizer

10-modes.pd

Three new patches. How to make more complex objects.

ModelPhysique2 2.zip

I've made an exemple in this topic.

The site is no longer hosted but the code was still valide last year.

Three patches that implement some basic physical modeling with expr and fexpr~.

The explanations I wrote about the calcul are not exact. The V term does not mean speed but is the sum of the forces on an axis.

Ammortis.zip

A broken tuto about data structures :

TutoDatastruct.pd

Data structures always. The first, the blue one, is the result of a stack overflow..

Generative font using Data structures

Here is the patch:

police_generative.pd

Type in the screen window using the keyboard. Press escape to erase.
I've made only a few letters so far, a,e,i,o,l,n,s,r,c,t,f, but I'm gonna go for a patch organized in a totaly different way.

Ok nice.
An update with sync stream.

I think also 250 is a start sync message and 252 is a sync stop message but I could not verify.

Hello,
Here is a quick reminder on how to generate raw midi in order to use the midiout object.

A question: is there another way to work with multiple midi ports, or is midiout the only one, pd vanilla.

bye

RawMidiBase.pd