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Thread: APX XE SP Channel Knob?

  1. #51
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    Anyone Know who makes the carry case they are using ?


  2. #52
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    I finally got everything together.

    APX XE FDNY
    https://www.thingiverse.com/thing:2966098
    APX Non-XE FDNY
    https://www.thingiverse.com/thing:2966886
    APX 6/7/8000 Super Fat Knob
    https://www.thingiverse.com/thing:2966088

    Descriptions and directions are included in each post.

    I would think long and hard about using a 3d printed knob in a public safety environment.

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  4. #53
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    Impressive work

  5. #54
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    This is truly impressive!

    On a semi-related note... what kind of plastic is usually used in the OEM knobs? Considering the depth of products for 3D printing Id wonder if there is a printable filament that can be comparable to the OEM plastic - or even stronger.

  6. #55
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    I'll be trying it out in Shapeway's "professional plastic" which is nylon. In my mind slightly better than desktop printer PLA which is all I currently have access to otherwise.

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  8. #56
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    I think the inside of the stock knobs are nylon, and the outside is something else. You can buy nylon filament but it has a higher melting temp that not all printers can handle. If you use PLA it shrinks and can become moldable if left in direct sunlight. ABS may be a better solution as it will be harder. But like you said nylon would be best.

    Sent from my VS987 using Tapatalk

  9. #57
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    Quote Originally Posted by axel View Post
    I'll be trying it out in Shapeway's "professional plastic" which is nylon. In my mind slightly better than desktop printer PLA which is all I currently have access to otherwise.
    Something tells me you nailed it - more than likely the knob is a Nylon type plastic with a rubberized coating over it. Nylon is strong but will "dent" before it breaks unlike ABS which will crack - and I've seen XTS knobs take a beating and become deformed before breaking. The Saber line knobs were ABS which became brittle.

  10. #58
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    Quote Originally Posted by discombobulated View Post
    I finally got everything together.

    APX XE FDNY
    https://www.thingiverse.com/thing:2966098
    APX Non-XE FDNY
    https://www.thingiverse.com/thing:2966886
    APX 6/7/8000 Super Fat Knob
    https://www.thingiverse.com/thing:2966088

    Descriptions and directions are included in each post.

    I would think long and hard about using a 3d printed knob in a public safety environment.
    What, if anything, is different between the XE and non XE knobs.

    Thanks,
    Michael

  11. #59
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    Quote Originally Posted by wiredwrx View Post
    What, if anything, is different between the XE and non XE knobs.

    Thanks,
    Michael
    Well you have to remember that the regular APX and the XE have different control tops. But here is a rough view of why they are different. The XE is much larger as you can see.

    knobs.png

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  13. #60
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    Thanks.

    If anyone plans to have some made, let me know, maybe I can help bring down the cost by getting a few. My local guy charges a "set-up" fee, which makes it uneconomical for just a couple. Or, if anyone wants to go in with me on a few, that would work also.

  14. #61
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    Got the knob in from shapeways today. Visually it looks excellent, the "professional plastic" seems very tough and while the surface finish is a bit rough, there are no filament lines like there would be from a standard 3d printer.

    Unfortunately I'm not sure if Shapeways messed up the file or the original file was scaled incorrectly, but even with the metal clip in place the knob slides right over it and doesn't stay retained on my 7000. The D slot appears to be too large. And yes, I'm positive I didn't order the XE version by mistake.

  15. #62
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    I will look into it and make sure the file is correct. I only tested on 2 printers but 3d printers are all different and have different calibrations.