Working Educational Model of Hot-Riveting
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A model of hot-riveting like it used to be applied in construction of steel structures like bridges and ships.
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- Creative Commons — Attribution — Noncommercial
My daughter had to give a presentation to her class on the general construction of the RMS Titanic and hot-riveting of steel plates.
For a better visualisation of this process we came up with a model that actually works (without heating metal to glowing temperatures).
The model includes
- two “steel plates” to be riveted together,
- an unused rivet,
- a set rivet,
- a cross section of a set rivet,
- a rivet to be set,
- tools to set the rivet (rivet set and dolly)
- as well as a mould to make rivets with a shaft of modelling clay.
In our version I cut the “steel plates” out of 4 mm acrylic - but I included the files to print them.
The sliced rivet is printed on the flat side and can be slid on the plates into the open hole. This can also serve as a stand.
The set rivet is printed in three parts: cap to be glued, threaded shaft and threaded cap. The caps are printed with the flat side facing down, requiring support only on the bed. The shaft can be printed without support. For the assembly the shaft needs to be glued into the cap. Now the rivet can be screwed into the hole of the plates.
The unused rivet consists of two parts: the same cap as above and a longer shaft without thread. These parts again are glued together.
For the usable rivet there is only a cap with a thread and a pin. The thread is only used to hold the modelling clay. The cap can be printed with support only on the outside perimeter as the inner overhangs are steep enough to print unsupported.
The mold can be printed without support and has a “print in place” hinge. On my MK3S it printed just fine.
The tools can be printed on their flat side without support.
To mould the rivet, the cap is filled with some modelling clay and then inserted into the mold which is then closed. Now the clay can be compressed to fill the mold. Once the mold is filled til the top, the volume is sufficient to get a decent head with the rivet set. The mold can be opened to remove the rivet.
The rivet is then put through the hole and the head is held with the dolly. The rivet set is then applied from the other side to form the second head. Done.