title: "Plastic bookmark"
steps:
  - caption: ""
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    title: "Preparations"
    text: "Due to the  thin object, preheating the mould around 80°C to make the process of injecting easier."
    images: []
  - caption: ""
    images: []
    title: "Inject the parts"
    text: "Time to inject. The plastic should be evenly molten to easily spread within the mould, so it might run out of the nozzle just because of gravity. Use a valve into the nozzle and open it right before you start injecting.Act fast and keep the pressure for a couple of seconds before lifting the lever. This will prevent sink marks as the plastic is cooling down under pressure."
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        updated: "2019-12-01T18:35:08.940Z"
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    text: "Once injected, open the mould if you wait a lot ,because of the plastic, shrinking maybe it will be more hard to release the object! "
    title: "Unmould your parts"
    caption: ""
_modified: "2019-12-01T19:55:00.139Z"
moderation: "accepted"
slug: "plastic-bookmark"
cover_image:
  updated: "2019-12-01T19:01:18.288Z"
  timeCreated: "2019-12-01T19:01:18.288Z"
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difficulty_level: "Medium"
time: "< 1 week"
_createdBy: "alumoulds"
tags:
  - "PP"
  - "product"
  - "injection"
_created: "2019-12-01T18:39:31.019Z"
description: "Make the moulds\nPlastic bookmark  will be injected,  you need the mould and access to an injection machine. For mould-making, download the files above and CNC-mill it yourself or send it to a mould maker.\n\nThis mould need a lot of force to be fully injected\n"
caption: "similar mould"
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    timeCreated: "2019-12-01T18:35:12.753Z"
    updated: "2019-12-01T18:35:12.753Z"
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    name: "Assem5.STEP"
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    description: "Mould Designer,love recycle way!"
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