machines/howtos/no-touch-tool-with-3d-printed-mould/config.json
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{
"title": "No Touch Tool with 3D printed mould",
"_modified": "2024-01-26T17:16:57.755Z",
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"label": "Moulds",
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"_modified": "2022-05-09T21:18:16.628Z",
"_deleted": false,
"_created": "2022-05-09T21:18:16.628Z"
},
"time": "< 1 week",
"difficulty_level": "Medium",
"moderation": "accepted",
"tags": [
"LDPE",
"mould",
"product",
"injection"
],
"mentions": [],
"comments": [
{
"_id": "lS5GqatGJQeKyCujN9i6",
"text": "great way to make the mould! can you please tell me what infill % you used and how many walls to make the mould durable ? i am planing to use PA12 carbon fibre filament from bambulabs , do you thing it is suitable",
"_created": "2024-01-26T17:16:57.753Z",
"creatorCountry": "",
"_creatorId": "3dhamparts",
"creatorName": "3dhamparts"
}
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"id": "GorLCaIm8dTUKRXCqTvT",
"_createdBy": "martin-ppl-uk",
"description": "Develop a tool for engaging with frequently touched surfaces like door handles, pin pads, and light switches, reducing direct hand contact. This aids in minimizing the spread of Covid-19. Constructed from 3D-printed nylon, the tool allows for rapid mold production to address this need efficiently.",
"steps": [
{
"_animationKey": "unique1",
"text": "Nylon was chosen for the mold due to its higher melting temperature compared to LDPE, used for making the No Touch Tools. Employing 3D-printed molds ensures minimal plastic usage, in contrast to CNC-machined polycarbonate sheets. While metal molds are preferable for durability and quality, they are more costly and environmentally impactful. The nylon molds have endured over 100 injections with minimal wear and offer a cost-effective alternative to metal molds.\n\nThe molds were printed using an Ultimaker 3D printer.",
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"updated": "2020-07-21T14:57:53.236Z",
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"title": "Make or buy the mould"
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"downloadUrl": "https://firebasestorage.googleapis.com/v0/b/onearmyworld.appspot.com/o/uploads%2Fhowtos%2FGorLCaIm8dTUKRXCqTvT%2FIMG_5240.jpg?alt=media&token=11ffbb04-2115-468f-a2a3-24e04a0fbe9d",
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"title": "Make a clamp for the mould ",
"text": "### Metal Mould Setup Tutorial\n\nFor even pressure and heat dissipation, we placed metal plates (0.39 inches) on either side of the mold. Alternatively, consider designing bolt slots in the mold halves for direct clamping.\n\nInitially, we used through-bolts, which proved impractical. We switched to 0.39-inch steel plates clamped together with M10 bolts (0.39 inches). This improvement allows for easy mold removal and separation of parts, enhancing efficiency."
},
{
"text": "We use LDPE from wheel nut indicators, noted for their vibrant color and quality. Injection temperature ranges between 160-170°C (320-338°F). For each tool, 40g (1.41 oz) of plastic is placed in the injection molder. Initial leakage ensures proper flow and excess plastic ensures the mold is completely filled. The injection is performed manually and slowly, maintaining pressure once the mold is filled, as indicated by overflow. The use of nylon molds insulates the plastic, preventing rapid cooling, thus requiring sustained pressure post-injection.",
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"title": "Inject into the mould"
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"title": "Leave to cool and separate",
"text": "After injection, keep the molds clamped for 3 minutes to cool before removing the No Touch Tool. Removing the part too early may cause deformation. Do not exceed 6 minutes, as excessive shrinkage can hinder release.\n\nUnclamp the mold, carefully peel out the part, and allow molds to cool. A fan can accelerate this process. Using multiple molds and clamps allows for efficient cycle times, enabling new injections while previous ones cool."
},
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"text": "Use a sharp knife to remove the sprue and any flashing. Drill a hole at the bottom for a keyring. Attach a retractable lanyard to keep the tool accessible while minimizing contamination risk.",
"_animationKey": "uniqueyh4awo",
"title": "Finishing"
},
{
"text": "Utilize tools to avoid direct contact with high-touch surfaces. Stay safe.",
"title": "Finished! ",
"_animationKey": "uniqueba3x4e",
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"timeCreated": "2020-07-21T14:58:00.587Z",
"updated": "2020-07-21T14:58:00.587Z",
"src": "/resources/howtos/no-touch-tool-with-3d-printed-mould/no_touch_tool_door.jpg",
"alt": "No Touch Tool Door.jpg"
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"downloadUrl": "https://firebasestorage.googleapis.com/v0/b/onearmyworld.appspot.com/o/uploads%2Fhowtos%2FGorLCaIm8dTUKRXCqTvT%2FNo%20Touch%20Tool%20Pinpad.jpg?alt=media&token=1aecd298-cd7b-4443-b132-b0f448547606",
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},
{
"title": "Bonus: Speed up the process",
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"text": "To enhance efficiency or reduce tool costs, consider these methods:\n\n1. Pre-heat plastic before injection using an oven rather than an extruder.\n2. Use multiple molds to allow some products to cool while injecting others.\n3. Load the injector with multiple doses, such as 1.4 oz (40 g), for successive injections.",
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"description": "At Relic we take pride in being recognised as an award-winning micro-manufacturer. Our mission is to make a positive impact by offering exceptional production services using only 100% recycled plastic. We work closely with outstanding designers and businesses who share our vision for a more sustainable future.\n \nWe specialise in injection moulding, with the ability to produce 10s-1000s of product a month and mix bespoke colourways to your specification - what we call \"colour alchemy\".\n \nWe produce sheet material, currently up to 20mm thick and 1000x1000mm in size. \n \nWe can offer education and interactive presentations or hands-on workshops using portable equipment bringing the recycling process to you! We can cover a wide range of ages and activities, please get in touch for more information. ",
"services": [
{
"welding": false,
"assembling": false,
"machining": false,
"electronics": false,
"molds": false
}
],
"title": "Relic Plastic, UK ",
"images": []
}
},
"content": "Develop a tool for engaging with frequently touched surfaces like door handles, pin pads, and light switches, reducing direct hand contact. This aids in minimizing the spread of Covid-19. Constructed from 3D-printed nylon, the tool allows for rapid mold production to address this need efficiently.\n\n\nUser Location: Lancaster, United Kingdom of Great Britain and Northern Ireland (the)\n\nNylon was chosen for the mold due to its higher melting temperature compared to LDPE, used for making the No Touch Tools. Employing 3D-printed molds ensures minimal plastic usage, in contrast to CNC-machined polycarbonate sheets. While metal molds are preferable for durability and quality, they are more costly and environmentally impactful. The nylon molds have endured over 100 injections with minimal wear and offer a cost-effective alternative to metal molds.\n\nThe molds were printed using an Ultimaker 3D printer.\n\n### Metal Mould Setup Tutorial\n\nFor even pressure and heat dissipation, we placed metal plates (0.39 inches) on either side of the mold. Alternatively, consider designing bolt slots in the mold halves for direct clamping.\n\nInitially, we used through-bolts, which proved impractical. We switched to 0.39-inch steel plates clamped together with M10 bolts (0.39 inches). This improvement allows for easy mold removal and separation of parts, enhancing efficiency.\n\nWe use LDPE from wheel nut indicators, noted for their vibrant color and quality. Injection temperature ranges between 160-170°C (320-338°F). For each tool, 40g (1.41 oz) of plastic is placed in the injection molder. Initial leakage ensures proper flow and excess plastic ensures the mold is completely filled. The injection is performed manually and slowly, maintaining pressure once the mold is filled, as indicated by overflow. The use of nylon molds insulates the plastic, preventing rapid cooling, thus requiring sustained pressure post-injection.\n\nAfter injection, keep the molds clamped for 3 minutes to cool before removing the No Touch Tool. Removing the part too early may cause deformation. Do not exceed 6 minutes, as excessive shrinkage can hinder release.\n\nUnclamp the mold, carefully peel out the part, and allow molds to cool. A fan can accelerate this process. Using multiple molds and clamps allows for efficient cycle times, enabling new injections while previous ones cool.\n\nUse a sharp knife to remove the sprue and any flashing. Drill a hole at the bottom for a keyring. Attach a retractable lanyard to keep the tool accessible while minimizing contamination risk.\n\nUtilize tools to avoid direct contact with high-touch surfaces. Stay safe.\n\nTo enhance efficiency or reduce tool costs, consider these methods:\n\n1. Pre-heat plastic before injection using an oven rather than an extruder.\n2. Use multiple molds to allow some products to cool while injecting others.\n3. Load the injector with multiple doses, such as 1.4 oz (40 g), for successive injections.",
"keywords": "No Touch Tool, 3D-Printed Nylon, Injection Molding, Covid-19 Safety, Touch-Free Solutions, High-Touch Surfaces, Nylon Molds, Ultimaker 3D Printer, LDPE Plastic, Mold Clamping Techniques",
"resources": "### Tools Constructed\n\n- 3D-printed nylon molds ([Ultimaker 3D Printer](https://ultimaker.com))\n- Metal plates (0.39-inch thickness)\n- M10 bolts and clamps for mold pressure\n- Sharp knife for trimming sprue/flashing\n- Drill for keyring hole attachment\n\n### Materials & Consumables\n\n- Nylon filament for mold creation\n- LDPE plastic (sourced from wheel nut indicators)\n- 40g LDPE per tool injection cycle\n- Retractable lanyard for hygiene\n- Sprue/flashing waste material\n\n### Software\n\n- Ultimaker Cura (slicing software for 3D printing)\n- CAD software for mold design\n\n### Hardware\n\n- Ultimaker 3D Printer ([Product page](https://ultimaker.com))\n- Manual injection molder\n- Metal plates (0.39-inch steel)\n- Bolt clamps for mold assembly\n- Oven for LDPE pre-heating (alternative to extruder)",
"references": "**Articles**\n\n1. [3D-printed contact-free devices designed and dispatched against COVID-19](https://pmc.ncbi.nlm.nih.gov/articles/PMC7318987/)\n2. [Makers 3D Printing and Sewing Gear to Help Fight Coronavirus](https://time.com/5811091/makers-3d-printing-coronavirus/)\n3. [Slow spread of coronavirus by 3D printing a hands-free door handle](https://www.designboom.com/design/materialise-coronavirus-door-handle-opener-3d-print-03-23-2020/)\n4. ~~[Hands-free door handle developed to prevent coronavirus spread](https://www.dezeen.com/2020/03/25/hands-free-door-handle-coronavirus-ivo-tedbury-freddie-hong/)~~\n5. [How to Use 3D Printing for Injection Molding](https://formlabs.com/blog/3d-printing-for-injection-molding/)\n6. [3D Printed Nylon 12: Shaping the Landscape of Manufacturing](https://rapidmade.com/3d-printed-nylon-12-shaping-the-landscape-of-digital-manufacturing/)\n\n**Books**\n\n1. [Injection Mold Design Handbook (Lowry's Books)](https://www.lowrysbooks.com/book/9781569908150)\n2. [Injection Mold Design Handbook (WORD Bookstore)](https://wordbookstores.com/book/9781569908150)\n3. [Injection Mold Design Handbook (Prairie Lights Books)](https://www.prairielightsbooks.com/book/9781569908150)\n\n**Papers**\n\n1. [Three-dimensional-printed molds and materials for injection molding](https://www.cambridge.org/core/journals/mrs-communications/article/threedimensionalprinted-molds-and-materials-for-injection-molding-and-rapid-tooling-applications/1065980AF393B1E9823747800FE8F8FA)\n\n**Youtube**\n\n1. [Injection molding setup and run](https://www.youtube.com/watch?v=cuF3gjvoSKU)\n2. [How to 3D Print Custom Tool Organizers](https://www.youtube.com/watch?v=kXay9wYWsGs)\n3. [PLASTIC INJECTION MOLD SETUP](https://www.youtube.com/watch?v=V9msuhMjfKY)\n\n**Opensource Designs**\n\n1. [3D Printing a Mold for a Slipcasting Mold](https://www.instructables.com/3D-Printing-a-Mold-for-a-Mold/)\n2. [Open Sourced Medical Designs (Facebook Group)](https://time.com/5811091/makers-3d-printing-coronavirus/)\n3. [Materialises 3D-printed hands-free door opener](https://www.designboom.com/design/materialise-coronavirus-door-handle-opener-3d-print-03-23-2020/)\n4. ~~[Hands-Free Architecture door handle design](https://www.dezeen.com/2020/03/25/hands-free-door-handle-coronavirus-ivo-tedbury-freddie-hong/)~~"
}