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Old Sep 03, 2014, 03:59 AM
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One thing I can tell from the pictures is that the bearing surfaces have been printed in such a way that they are the first layer, the one directly in contact with the printing bed. This means that their surface finish, as opposed to that of the other parts of the print, is the same as the finish of the printing bed surface, which is generally a glass pane. There's a lot of smart thinking in this device.
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Old Sep 03, 2014, 06:14 AM
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Originally Posted by Brandano View Post
One thing I can tell from the pictures is that the bearing surfaces have been printed in such a way that they are the first layer, the one directly in contact with the printing bed. This means that their surface finish, as opposed to that of the other parts of the print, is the same as the finish of the printing bed surface, which is generally a glass pane. There's a lot of smart thinking in this device.
I agree. I'm already looking at 3d printers as a starting point to this acknowledging to get anywhere on this project is starting from the ground up.
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Old Sep 03, 2014, 09:20 AM
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I agree. I'm already looking at 3d printers as a starting point to this acknowledging to get anywhere on this project is starting from the ground up.
Having a 3D printer is not really necessary though it might be convenient. The real gateway skill is 3D CAD capability. There are outfits who will print your design and with your permission will even print it for others and pay you a comission. Although something relatively big and complicated like this might cost $400, it is probably still cheaper than buying the printer unless you are going to be doing this kind of thing constantly or commercially.

For those of us who don't have mad 3D design skills, printing your parts and paying you a commission really expands our options. Of course we would need to know that what we are buying will ultimately work, and that is where a forum like this is invaluable.
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Old Sep 03, 2014, 10:52 AM
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If your first print came out the way you intended it, then it would definitely be cheaper to get a 3rd party to print it for you. Unfortunately that's not my experience so far
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Old Sep 03, 2014, 06:50 PM
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I have done further initial testing with my 3" swivel duct, so far results are amazing, a sail winch moves it very easily and does not load (can't hear it over working or anything) I did some mods to help, but I am wondering, if you only have it turn 180 at one joint, when in full forward thrust the duct will look like an 'S' , how much thrust loss will their be?
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Last edited by MarkG21; Sep 03, 2014 at 07:19 PM.
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