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Mibo A10 dummy fans

Old 12-16-2019, 11:55 AM
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-JC-
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Default Mibo A10 dummy fans

Iím trying to get the actual fan diameter of the Mibo A10 fans. Anyone got a pair floating around? Also looking to buy a pair if the size is right.

I need a solution for my Boeing 787 Dreamliner. The inner diameter of the inlet lip is 164mm at fan mounting point.



Old 12-16-2019, 12:40 PM
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I’ll take a measurement tomorrow when I get home for you John. I’ll pm you my number, I thought we exchanged info at Buttonwillow.
Old 12-16-2019, 12:58 PM
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Edgar Perez
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Too big for you, measured mine and the diameter is 190.5mm.
You may be able to trim them down by turning them in a high speed lathe.

Old 12-16-2019, 01:13 PM
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Thanks both. 190mm is quite a bit too big. Interesting idea trimming them down. Curious what the 3D printed material is?


Old 12-16-2019, 01:48 PM
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It looks like the intake on the model "necks down" significantly in the white section, while the full-scale nacelle doesn't.

What is the diameter of the model nacelle's intake at the inside edge of the silver area?

Maybe modification of the nacelle would allow the Mibo fans to fit better?

Bob
Old 12-16-2019, 01:50 PM
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Yes, I am going to trim the white part of the inlet. It is too deep. 164mm is the diameter at the scale fan mounting location.
Old 12-16-2019, 01:58 PM
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What about the Skymaster A10 fans? I think that the Skymaster A10 is smaller than the Mibo, isn't it?



Bob

Yep, just checked, the Mibo is listed at 1/4 scale and the Skymaster is 1/6.25...
Old 12-16-2019, 02:11 PM
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There is also the smaller Skymaster A-10.
Old 12-16-2019, 02:16 PM
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Skymaster is around 140mm. Too small unfortunately
Old 12-16-2019, 02:19 PM
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I could 3D print an outer ring to put around the Skymaster fan to close the gap, might look ok, but the Mibo probably looks better if it can be trimmed down
Old 12-16-2019, 04:59 PM
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What about starting with the Skymaster fan and 3D printing new blades - with the awesome swept shape of the full-scale ones?

Bob
Old 12-16-2019, 05:06 PM
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That would take some pretty advanced 3D making skills
Old 12-16-2019, 06:05 PM
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Originally Posted by -JC- View Post
Thanks both. 190mm is quite a bit too big. Interesting idea trimming them down. Curious what the 3D printed material is?
i don't think they are 3d printed anymore. It looks like injection molded to me.

Old 12-16-2019, 06:35 PM
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https://www.rcgroups.com/forums/show...3D-Printed-EDF
Old 12-16-2019, 09:37 PM
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great link. Thereís even a link to the STI files for printing a complete fan 👍👍

Will give that a try

thanks
Old 12-17-2019, 06:27 AM
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Originally Posted by -JC- View Post
great link. Thereís even a link to the STI files for printing a complete fan 👍👍

Will give that a try

thanks
Did you see the trophies given out at Miami Jets? Iíll bet they printed those out from the same source. You could contact Marvin and see how they did them.

Bob
Old 12-17-2019, 10:12 AM
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Hi Bob,

Yes, Henry C sent me a photo. Great looking trophies. It looks like this could be the way to go since the already made ones do not fit.

Just concerned about how to mount them on a ball bearing and also if they are strong enough when spinning really fast. I imagine they get up and spinning at a pretty good clip when at full throttle
Old 12-22-2019, 06:34 AM
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Default 3D printing

I have a resin printer and could print your fan blades and hub out of the strongest resin available through retail sources. Iíd be willing to print these for you if youíre interested. The resin printer does not have th visible printing lines like a FDM (filament) printer and they donít get get weak or warped in higher temps. Pm me.

Last edited by Spencer K; 12-22-2019 at 06:37 AM.
Old 12-23-2019, 03:09 PM
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That would be great Spencer, Iíll reach out

Thank you

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