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Thread: 3D Printed HK/Cetme Bending Jig

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    holescreek's Avatar
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    3D Printed HK/Cetme Bending Jig

    A fellow on HKPro posted a link to his 3D printed flat bending jig on thingaverse.

    https://www.thingiverse.com/thing:4614385

    Link to the original thread: https://www.hkpro.com/threads/mp5-fl...ed-jig.530739/

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    I was gonna print off one of those when he posted it on WG a while back. Really easy to print.
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    holescreek's Avatar
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    I might print one just to see what dimensions he used. I still have a flat or two sitting around somewhere.

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    Quote Originally Posted by holescreek View Post
    A fellow on HKPro posted a link to his 3D printed flat bending jig on thingaverse.

    https://www.thingiverse.com/thing:4614385

    Link to the original thread: https://www.hkpro.com/threads/mp5-fl...ed-jig.530739/
    That's pretty cool, if it works. Sturdy enough?
    14EH AIT Instructor-PATRIOT Fire Control Enhanced Operator/Maintainer

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    holescreek's Avatar
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    I won't know until I've made one and tried it. I'm sure he has the material and fill rate in his notes somewhere. I know solid PVC works just fine because I've made jigs from it. Printed stuff unfortunately has a grain to it and pressure perpendicular to the grain can split it.

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    Senior Veteran Moleman's Avatar
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    In the Thingiverse link under printer settings he has the infill listed at 15. In the description he mentions 15% gyroid infill... Seems like you'd want it to be solid though.

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    "Recommended print settings. It's printed in eSun PLA+, standing on end, .16 layer height, 8 walls, 15% Gyroid infill, .45mm line width(with .4 nozzle), 107% wall flow and 120% infill flow to "overstuff" the layers for better layer adhesion, a higher than normal 220C and only 70% cooling fan, again for better layer adhesion. These are the basic setting for all my "strong" parts. Using these setting I get significantly stronger prints than the "standard" print settings, at the cost of a not quite as smooth surface finish."

    I wouldnt worry too much about it being too little. A time comes with infil percentages where you reach a point of diminishing returns where creating a solid print isnt worth the extra material nor the print time as it will have the same strength with a lower infil setting. Printing in gyroid gives you not only a time savings in printing that pattern but also the ability to withstand say being used in a press. PLA+ typically is "stronger" than regular PLA but I think the jury is 50/50 on that claim last I looked. Im not an expert nor did I stay in a holiday inn express last night, im just a fool with a printer.

    Last edited by shibbykins; 01-09-2021 at 04:56 AM.
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