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Author Topic: Printed motor mounts.  (Read 1925 times)

Offline Perry Rose

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Printed motor mounts.
« on: December 14, 2020, 10:34:56 AM »
What glue is best to secure the mount to the fuselage?
I may be wrong but I doubt it.
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Offline Dennis Nunes

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Re: Printed motor mounts.
« Reply #1 on: December 14, 2020, 12:36:12 PM »
Hi Perry,

I used "Bob Smith Industries" 30-minute epoxy on my profile 3D mount for Okie Air Model Products.


Dennis


Offline Perry Rose

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Re: Printed motor mounts.
« Reply #2 on: December 14, 2020, 12:38:29 PM »
Thanks Dennis, that's what I have. I've been wanting to try one for a while.
I may be wrong but I doubt it.
I wouldn't take her to a dog fight even if she had a chance to win.
The worst part of growing old is remembering when you were young.

Offline Dennis Nunes

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Re: Printed motor mounts.
« Reply #3 on: December 14, 2020, 02:34:35 PM »
Thanks Dennis, that's what I have. I've been wanting to try one for a while.

The other thing I forgot to mention regarding the mount is roughing up all the glue surfaces. I also enlarged the cast in-place dimples to allow for a better glue surface. This may be an overkill but I sleep better at night.  ;D

See attachment.

Dennis


Offline ericrule

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Re: Printed motor mounts.
« Reply #4 on: December 16, 2020, 11:55:26 AM »
Wow! Dennis that mount is really cool.

I just love to see people using new technology to improve our hobby. Thanks for attaching the pictures. Do you have a printer or did you get it done by one of the services?

Offline Dennis Nunes

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Re: Printed motor mounts.
« Reply #5 on: December 16, 2020, 02:18:33 PM »
...Do you have a printer or did you get it done by one of the services?

No I don't have a 3D printer. These mounts can be purchased from Okie Air Model Products. Russel has two versions, one for profiles and one for a built-up fuselage. https://okieair.com/shop/ols/products/printed-motor-mount

You can get them with built-in motor offset for Bad Ass, Cobra, EFlite and Plettenburg motors. But you will need to ask Russel about the offset as I don't see a way to select it on the website.


Dennis

Online Howard Rush

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Re: Printed motor mounts.
« Reply #6 on: December 23, 2020, 03:42:16 PM »
Is heat a problem with these mounts?  What plastic do they use?
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Offline Dennis Nunes

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Re: Printed motor mounts.
« Reply #7 on: December 23, 2020, 04:26:39 PM »
Is heat a problem with these mounts?  What plastic do they use?

Howard,

I have almost 70 flights on my Circulas 46 IIe profile with the 3D mount from Okie Air Model Products with a Cobra 3515-18 motor. So far it appears to be working very well and is very solid. As far as the plastic that is use, I don't know.


Dennis

Offline Dave Adamisin

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Re: Printed motor mounts.
« Reply #8 on: January 15, 2021, 09:19:24 AM »
Is heat a problem with these mounts?  What plastic do they use?
Hi Howard. I am the source for the mounts. They are made with petg. Specifically, this petg:

https://www.3dxtech.com/petg-filaments/max-g-petg/

The first mounts were made with pla and there was one heat failure. "Hot day in Texas" yada yada..... ::) so I switched to the petg. Slightly higher glass temp but much more gradual failure mode. ABS and PC are options but a pita to print. I have a couple mounts I made for extreme situations made from PC.
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Online Howard Rush

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Re: Printed motor mounts.
« Reply #9 on: January 15, 2021, 04:51:18 PM »
Thanks for the information and the link.  PLA vortex generators distort on a hot day.  I suspect Dali used PLA to print clocks. 
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Offline Dave Adamisin

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Re: Printed motor mounts.
« Reply #10 on: January 15, 2021, 05:03:23 PM »
Thanks for the information and the link.  PLA vortex generators distort on a hot day.  I suspect Dali used PLA to print clocks.
For sure and maybe his glasses.... Also, petg is much less affected by uv..
« Last Edit: January 16, 2021, 03:15:01 PM by Dave Adamisin »
Thyme is money - on roasted potatoes


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