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Thread: Wanted: 3.2mm to 2.3mm coupler

  1. #1

    Default Wanted: 3.2mm to 2.3mm coupler

    like it says...my motor is 1/8" and the shaft I need to couple to is 2.3mm

    any ideas?
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  2. #2

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    Nick,

    Try Ned Schmidt here on the forums. He made a couple for me a few years back when I was building micros.

    Take care,
    John
    "When too much is just right!"

  3. #3

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    Quote Originally Posted by johnnyoverkill View Post
    Nick,

    Try Ned Schmidt here on the forums. He made a couple for me a few years back when I was building micros.

    Take care,
    John


    Thanks John but there is no one by that name listed in the "members"
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  4. #4

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    Sorry Nick, he's listed under N.H. Schmidt.

    Tell the old buzzard I said hi!

    John
    "When too much is just right!"

  5. #5

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    Quote Originally Posted by johnnyoverkill View Post
    Sorry Nick, he's listed under N.H. Schmidt.

    Tell the old buzzard I said hi!

    John
    cant find that name either
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  6. #6

    Default Freebie!

    I will make you one. Aluminum, tapped for 6-32 set screws, two per end opposed to each other (thru tapped), you want 5/16 or 1/2" aluminum?

    I need OAL and how deep the larger diameter needs to be. I think I can make it Monday, might be tuesday and I will mail it out to you.

    I just made one on Friday, .093 flex to 2.26mm motor (2632 mystery)

    what do you have with a 2.3mm shaft that is not the motor?

    Brian

  7. #7

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    Quote Originally Posted by befu View Post
    I will make you one. Aluminum, tapped for 6-32 set screws, two per end opposed to each other (thru tapped), you want 5/16 or 1/2" aluminum?

    I need OAL and how deep the larger diameter needs to be. I think I can make it Monday, might be tuesday and I will mail it out to you.

    I just made one on Friday, .093 flex to 2.26mm motor (2632 mystery)

    what do you have with a 2.3mm shaft that is not the motor?

    Brian
    OK here you can see the 1/8" shaft on the motor and the 2.3mm prop shaft...you can also see the coupler that came with the prop shaft it had 2.3mm on both ends but I tried to drill one end out to 3.2mm but ruined it...the coupler you see here is about 15/16" long and has a 9/32" diameter

    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  8. #8

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    sorry wrong size
    You're born. You suffer. You die. Fortunately, there's a loophole.
    Billy Graham

  9. #9

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    here is another view with the impeller installed

    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  10. #10

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    Quote Originally Posted by bustitup View Post
    cant find that name either
    Nick,

    If you and Brian don't get it worked out, you can find Ned as the first listing under the letter "N" in the members list.

    Good luck either way!

    John
    "When too much is just right!"

  11. #11

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    Thanks John but I think befu is going to hook me up


    Quote Originally Posted by johnnyoverkill View Post
    Nick,

    If you and Brian don't get it worked out, you can find Ned as the first listing under the letter "N" in the members list.

    Good luck either way!

    John
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  12. #12

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    Quote Originally Posted by bustitup View Post
    Thanks John but I think befu is going to hook me up
    Got what I need, let me try to make it tomorrow. Brian

  13. #13

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    Brian dont worry about 6 grub screws ...2 like the original is ok


    Quote Originally Posted by befu View Post
    Got what I need, let me try to make it tomorrow. Brian
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  14. #14

  15. #15

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    Quote Originally Posted by bustitup View Post
    Brian dont worry about 6 grub screws ...2 like the original is ok
    The 6-32 wasn't a quantity, it's the size. Quantity was four - 2 on each end drilled through. And that is a good arrangement. You'll want at least 2 screws on each end to be able to balance the coupler to minimize vibration. I usually ask for three (spaced 120 degrees apart) when the application is a jet drive. Jeff Wohlt does a bangup job on these, I've had several made up for me in the past.

  16. #16

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    Quote Originally Posted by sundog View Post
    The 6-32 wasn't a quantity, it's the size. Quantity was four - 2 on each end drilled through. And that is a good arrangement. You'll want at least 2 screws on each end to be able to balance the coupler to minimize vibration. I usually ask for three (spaced 120 degrees apart) when the application is a jet drive. Jeff Wohlt does a bangup job on these, I've had several made up for me in the past.
    Yeah, that requires me to actually lift my rotary table up and bolt it down - lots of work there for a free coupler!

    Yeah, 6-32, 6-33, whatever it takes....

    Brian

  17. #17

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    Quote Originally Posted by befu View Post
    Yeah, that requires me to actually lift my rotary table up and bolt it down - lots of work there for a free coupler!

    Yeah, 6-32, 6-33, whatever it takes....

    Brian
    yes sundog makes sense 2 on each end sounds fine

    befu I wasn't expecting it to be free...thanks so much for the gesture and effort
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  18. #18

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    Quote Originally Posted by bustitup View Post
    yes sundog makes sense 2 on each end sounds fine

    befu I wasn't expecting it to be free...thanks so much for the gesture and effort
    Shoot me your address, it will mail out tomorrow. That is the second time I needed a 2.3mm drill bit so I ordered one, will be in tomorrow. The rest of it is done but I need to drill it out the last .002" for 2.3mm. Hopefully it will work, when I make them I usually have the shaft and motor here to trial fit them. The one I made for my mini hydro I just used a .093 bit, but it felt loose.

    Let me know how you like that motor. I have the 2350kv version in my 1/16 hydro and it seems to work well.

    Brian

  19. #19

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    I received the coupler from befu about a week ago and worked absolutley perfect.....very nicely done

    thanks befu
    SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
    EX President of the Offshore FE Vultures Society

  20. #20

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    Quote Originally Posted by bustitup View Post
    I received the coupler from befu about a week ago and worked absolutley perfect.....very nicely done

    thanks befu
    Your welcome.

    Glad it worked out, Brian

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