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It works fine without heating the mould, but after having injected a few, the moluld gets very hot for being in contact with the hot plastic and the nozzle. Then it works even better.
Here I attach you the technical drawings and STEP files of the mold we designed. As you can see, the dimensions are not round numbers. This is because we scaled the mold up to avoid contractions in the final pieces when the plastic cools (it needed to fit perfectly with the reused cap).
The mold seals hermetically with the nozzle of our machine with a conic shape.
By the way, the cap we use is standard in Spain, but we don’t know if exists in other countries. It would be nice to know!
I hope you find this information helpful, and if you need anything else let us know!
Yes, the mold was made using a cnc machine. We are now looking into alternatives to be able to have super cheap, easily recyclable molds, but it isn’t easy.
In the long run we are aiming at creating a service for waste management where inhabitants of a neighborhood are mico waste managers, dealing with certain elements of their home plastic waste, by bringing them into the facility where they can transform it into a shiny new product. This way, we will be creating smaller waste management loops, not relying on huge waste management systems that deal with far too much material to be able to do it properly. Imagine every neighborhood in every city having a facility like this…over the time this service could have a big impact, avoiding burning or burying plastics, and educating. And not just for plastic but for other materials too, with time. Would that make sense? Energetically, economically and socially? Well, we are looking into it!
Sorry, we’ve just seen this. FOr some reason we don’t get notifications when someone writes here.
We based our machine on V1 and redesigned it to fit our needs. Not sure what tools you mean, but for the end of the cylinder where we plug the nozzle we used a lathe.
I guess you’ve solved this already, but hope this helps! We should meet soon!
I don’t think we are the ones to sell these machines, as we would feel it wouldn’t be fair. We used them as a starting point for our project. We can, nevertheless, collaborate with you and help you develop them for your needs.
If you give us an contact method we can discuss it.
No creemos que debamos de vender estas máquinas. Creemos que no sería correcto. Nosotros las usamos como punto de partida para nuestro proyecto. No obstante, podemos colaborar con vosotros y ayudaros a desarrollar lo que necesitéis.
Si nos pasáis un contacto podemos hablarlo.
We didn’t go to any scrapyard, since we salvaged components from machines in a friend’s workshop. The seamless pipe was the only thing we bought, together with the electronics. Check Schröder, by Granollers. You will need a car since it is in the C17 road.
Hope this helps!
Hola Cyrille, que tal?
Awesome that you are starting this!
We savaged most of the parts from old stuff and old machines…Ask what it is that you can’t find and we will give you a hand if we can!
What project are you into?