Danish cannons for 3D printing

[Waldemar]

 

Again, Swedish digitaltmuseum, and again I am not able to provide a link for this specific plate, which I did not written anywhere when downloading, sorry. It must come from the Armémuseum resources.

 

 

[Waldemar]

 

I also calculated the weight of this barrel for possible verification of its dimensions. Reading the engraved weight markings as ‘XVI S(keppund) : X L(ispund) : [...] Markpund’ gives a result of approximately 2250 kg.

 

Admittedly, this is a fairly typical weight for a legitimate 24-pound cannon, yet this particular specimen, as a ‘drake’, is a relatively light cannon, being short and with thin barrel walls, so the result seems quite reliable.

 

Now, if you make a 3D model of this cannon (or even without it), you can calculate its volume and multiply it by the specific weight of bronze, which for a copper to tin ratio of 10:1 should be, say, between 8.5 and 8.6 g/cm³. This is actually the least reliable component of the calculation, as the actual alloy may have had different proportions and also other components as well. But these calculations are not difficult and are always worth doing in similar reconstructions.

 

[thibaultron]

Determine the length using the drawn bore width as a meteric.

[Nirvana]

Once I have my Elegoo resin printer up and running, I will certainly try out printing some cannons.