67-69 Barracuda Notchback “Rear Air” Defog Vent

[mosleyme]

Goes on rear package shelf. As far as I know 67-69 Notchback Barracuda only.


I have a nice pair of original in black:

Go on rear package tray like this:

Usually originals look more like this:

I measured with a caliper, created a model in Fusion360:

Here is a pair I printed in brown for my car, along with material I intend to use for the package tray:

Printing a blue one, low on blue filament so I did supports in brown:

Made a sacrificial piece so the longer leg would print better:

First set of prints:

 

[broughj]

They look great. Thanks for taking this project on. I believe the rear defog system was a very rare option on the notch's. I've never seen a system on a car other than the one I am restoring. Although I won't be installing them for some time, I look forward to putting a pair in the box with the rest of the defog system parts for installation when I am ready to put the car back together.

Regards,

John

 

[BigB6958]

Great work. My buddy does 3D printing and he is printing me the body molding clips, the plastic ones that go along the quarters on my 67 Dart GT Conv. They are very hard to find, and when you take off the molding they tend to break from age. Saved me a fortune. There is a lot of things that can be #D printed instead of trying to find originals.

 

[Swinger 340]

Great work. My buddy does 3D printing and he is printing me the body molding clips, the plastic ones that go along the quarters on my 67 Dart GT Conv. They are very hard to find, and when you take off the molding they tend to break from age. Saved me a fortune. There is a lot of things that can be #D printed instead of trying to find originals.

Maybe no longer, but I use to get those trim clips at auto paint supply stores.

 

[RustyRatRod]

Man that's badass for a hard to find part. How long does it take your machine to print those?

 

[mosleyme]

Man that's badass for a hard to find part. How long does it take your machine to print those?

About 4 hrs w/ ASA, depends on settings.

Trying a different setup now to see if I can make an improvement on the surface finish. Still learning the 3D printer part. The CAD stuff is easy, I have done a few thousand parts in SolidWorks and Inventor. Took a few hours to acclimate to the menus in Fusion360.

 

[mosleyme]

Learning cycles.
Process optimization.

I do this at work for an entirely different process, but the methodology is the same.

So, calibrate flows, optimize the angle you print, strategically place supports, and tweak the bed and nozzle temperature.

Bambu H2D
Overture ASA.
Using 0.4mm nozzle and built in flow calibration.
Slowed speeds down…
Angling the face 25 degrees from vertical, and 40 from the horizontal. Default supports with extra touch points on backside of the fins.
95C bed, 60C chamber 250C nozzle.

Definitely a learning experience.

Much better results! The "visible" lines in the photos are more subtle than the images suggest.