comments: []
fileLink: "https://drive.google.com/drive/folders/17cI89XofhVG1ljLkrxfl0W_apRkhhvnq?usp=sharing"
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steps:
  - _animationKey: "unique1"
    title: "Mill the Mould"
    text: "Download the .stp-files and the blueprints for the mould for CNC milling.\n\nMetal examples for CNC Milling:\n\nAluminium:\nAluminium - 7050\nAluminium - 7075-T6\nAluminium - 7075-T651\n\nSteel:\nMild steel 1045\n\nCNC mill the mould accourding to the blueprint and insert 8x10mm Dowel pins."
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        timeCreated: "2024-02-09T23:43:59.150Z"
    _animationKey: "unique2"
    title: "Get your blades"
    text: "You can use blades up to 2cm wide (at the insert spot) or order the Precious Plastic blades on the Precious Plastic Bazar. These are high quality & super sharp blades from Solingen (Germany). Material: Stainless steel 1.4116"
  - text: "If you use the Precious Plastic blades you can download the .stl-file of the insert for 3D-Printing. \nIf you use other blades use the .stp-file of the insert and change it to your needs."
    _animationKey: "unique3"
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    title: "3D-Print the inserts"
  - title: "Assemble the mould"
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    text: "Slide the inserts on the blades and align them into the mould so they fit the right spot of the handle (see the picture).\nClose the mould with M8x40 screws."
    _animationKey: "uniqueul20h"
  - images:
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        updated: "2024-02-09T23:44:10.128Z"
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    text: "Fill the injection machine with about 100g Polypropylene, heat up for 10-12min, check the viscosity of the outcoming plastic, if everything is alright inject fast and hold a strong pressure for about 30sec."
    _animationKey: "uniquea6d5oh"
    title: "Inject"
  - _animationKey: "uniquelzuy5m"
    text: "Unscrew the mould, use the demoulding pockets to open the mould if necessary, knock out the sprue, cut the runners and finish the handle with a knife and flame."
    title: "Deassemble & Finishing"
    images:
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        contentType: "image/jpeg"
  - title: "Video"
    videoUrl: "https://youtu.be/iWw0g9bpZDQ"
    images: []
    text: "Check out the story behind the knife and see the process of making the knife in the Johannplasto workshop."
    _animationKey: "uniquetli2oy"
moderation: "draft"
_deleted: false
category:
  _modified: "2022-05-09T21:18:16.628Z"
  _deleted: false
  _id: "PNQc9KjspF0xU4fMYEin"
  label: "Moulds"
  _created: "2022-05-09T21:18:16.628Z"
tags:
  - "PP"
  - "mould"
  - "injection"
description: "With this mould you are able to inject 3 ergonomic knife handles. The mould is designed for different blade sizes up to 2cm wide. \n\nWith a handle weight of 25g your injection machine need to inject 75g to fill the mould. With the Precious Plastic injection machine with a capacity of about 100g this is not a problem. \n\nFor the blades you need to 3D-Print inserts that matches the blades at the right spot. The plastic type Polypropylene is recommended for this product and is also milled into the mould. Also the \"Precious Plastic\" branding is milled in. \n\nIf you don´t have blades available you can order them also at the Precious Plastic Bazar.\n\nThe product design, the mould design and the insert design for the Precious Plastic blades are opensource, so you are able recreate the mould or change it to your needs. \n\nIf you are just interested in the knifes you can order them on the bazar.\n\nIf you need help with the mould or the inserts let me know.\n\nHappy recycling! \nThomas @@{rrguoBLGigPW35rVXqCoPTQdjh13:johannplasto}"
previousSlugs:
  - "make-a-kitchen-knife-from-recycled-plastic"
creatorCountry: "de"
mentions:
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    username: "johannplasto"
_modified: "2024-02-09T23:50:22.094Z"
slug: "make-a-kitchen-knife-from-recycled-plastic"
_created: "2024-02-09T23:44:15.692Z"
files: []
difficulty_level: "Hard"
title: "Make a kitchen knife from recycled plastic"
_createdBy: "johannplasto"
_id: "UyhrLzYl4Uw72qXpbl3T"
_contentModifiedTimestamp: "2024-02-09T23:50:22.094Z"
time: "3-4 weeks"
total_views: 8
user:
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  moderation: "accepted"
  subType: "injection"
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    lat: 51.0556
  _created: "2024-01-26T07:16:11.164Z"
  type: "workspace"
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  _modified: "2024-01-26T07:16:11.164Z"
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  geo:
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    lookupSource: "coordinates"
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    localityLanguageRequested: "en"
    continent: "Europe"
    continentCode: "EU"
    countryName: "Germany"
    countryCode: "DE"
    principalSubdivision: "Saxony"
    principalSubdivisionCode: "DE-SN"
    city: "Dresden"
    locality: "Altstadt"
    postcode: "01307"
    plusCode: "9F3M3Q47+62"
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          description: "country in central Europe"
          isoName: "Germany"
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          geonameId: 2842566
        - name: "Dresden"
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        - name: "Altstadt"
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      informative:
        - name: "Europe"
          description: "continent"
          isoName: "Europe"
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        - name: "Europe/Berlin"
          description: "time zone"
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        - name: "Verkehrsverbund Oberelbe"
          description: "transit district in the Dresden metropolitan area, Germany"
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      - name: "Instagram"
        url: "https://www.instagram.com/johannplasto/"
      - name: "Bazar"
        url: "https://bazar.preciousplastic.com/johannplasto/"
      - name: "Social media"
        url: "https://www.tiktok.com/@johannplasto"
      - name: "sponsor the work"
        url: "https://www.patreon.com/one_army"
    description: "Hi there! :) Johannplasto is a small scale recycling workspace (Verified Precious Plastic Workspace) in Dresden - Germany. WIth the capabilty of shredding plastic waste and injecting the flakes in to new objects we are capable of recycling a lot of common thermoplastics like PP, PE & PS, but also 3D-Printing Plastics like PLA & ABS. We produce products for different companies and support the chain from idea to end product and offer also a range of Johannplasto products like lamps and screwdrivers. We also have machines to recycle PET bottles into new 3D-Printing filament. Get in contact if you have a product idea, need an injection mould, if you like to recycle your plastic waste or need help to set up a recyling workspace. Thomas @Johannplasto"
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    title: "Johannplasto"
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