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Stuart replied to the topic Nylon Zip Ties in the forum Research about plastic 1 week, 3 days ago

I have no experience with this, but have you tried shredding them?

edit: from what I found online, nylon’s melting point is either 218°C or 257°C not sure what the difference is though

Sérgio replied to the topic Africa trash vs Precious Plastic. Round 1. Fight in the forum Welcome! Meet eachother 1 month, 1 week ago

Boa tarde Miguel, espero que esteja a gozar de boa saúde, deste lado fala o Sérgio, eu sou angolano e também ando procurar trabalhar com este projeto em Angola, Luanda, gostaria de manter contacto contigo e saber se poderíamos mergulhar juntos nesta mega ideia, neste momento estou a viver em Portugal. Assim que ler esta sms, espero que se int…[Read more]

PlasticHub replied to the topic 19 months Precious Plastic in the forum General ideas and suggestions 1 month, 2 weeks ago

Since the forum has been shutdown and there is little to no long-term visibility for ANY PP related content, we continue on http://plastic-hub.com/blog (currently WIP).

Roger replied to the topic how to make solids in the forum Questions? 5 months ago

Hello,
I have never used a precious plastic machine (though I would like;)) but I think I have the answer to your question by watching the videos of precious plastic: “How to finish precious plastic object” or something similar.
To make large dense cubes they make a welded mold ( outer part and a “pusher” ) which they put in the compression…[Read more]

Mark Riem replied to the topic My latest pneumatic injection machine in the forum Machine development 5 months, 1 week ago

Machine with 4″ bore cylinder.

Mark Riem replied to the topic My latest pneumatic injection machine in the forum Machine development 5 months, 1 week ago

My current machine uses this 5″ bore cylinder:
https://www.baileyhydraulics.com/Chief-TC3-3000-PSI-Tie-Rod-Cylinders-5-x-16-2-Rod-Dia-

I’ve also built a machine using a 4″ bore cylinder:
https://www.baileyhydraulics.com/Maxim-TC-2500-PSI-Tie-Rod-Cylinders_64

I’ll upload an image of that machine.

The smaller cylinder should be adequate for most…[Read more]

Marcus Rosenthal replied to the topic My latest pneumatic injection machine in the forum Machine development 5 months, 1 week ago

We want to upgrade our injector to have pneumatics. Do you have the details on the pneumatic cylinder you used? How large of a volume tank do you need on your compressor for that cylinder? Any lessons learned that you can share with us before we start? Thanks!

allen guo started the topic I am a researcher at agriculture-machine in the forum Welcome! Meet eachother 5 months, 1 week ago

I am mainly responsible for the research and sales of various agricultural machinery. For example, the agricultural machinery I have learned is peanut sheller, corn harvester, corn thresher, fish pellet machine, transplanter, seedling machine and so on.

Ian Gordon started the topic Used machines in Korea in the forum Community talk 5 months, 1 week ago

I note after a bit of an absence that the current Precious Plastic members on the map are different from the ones listed before. So, I’m wondering how to get in touch with those who have left the community, to see if they have machines to sell. I’ve contacted those close to me in Seoul, but in two weeks.. no replies. 🙁

Gustavo Merckel replied to the topic Mould Design Community, what if…??? in the forum General ideas and suggestions 5 months, 2 weeks ago

I have had the same discussion for years!!! But I think more and more people are making molds, so I hope the prices get down, so the complexity. In Mexico we are looking for alternatives, for example we use the inyection machine to melt the plastic and the use a press https://www.youtube.com/watch?v=Z0LP8aTaj_0&t=92s

Saludos desde México