New! 69 Center Dash Vent assembly - Chevelle Tech
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post #1 of 25 (permalink) Old May 25th, 19, 9:18 AM Thread Starter
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Paul
 
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New! 69 Center Dash Vent assembly

OK so I am taking the interior of my 68 and making it a 69. I have a re-manufactured 69 dash some Dakota Digital gauges new Radio and even Astro air vents new column and so on. I didn't want to kick this project off with out having a 69 center vent and the rear duct (I don't like how the vintage air center vents and the ones mounted under the dash that came with my car look.)
After trying and failing to find a re-manufactured 69 center vent assembly I tried finding used one with about the same amount of success and when they are available they seem to go for around 300 ish and the condition can vary greatly.So I decided that I would make my own! I have the dash I have the vents that go in the dash and I have pics from on-line for how it should look. This was also a good excuse for the wife to buy a 3d printer.

I have had the 3d printer for about a week now and I have done a few tutorials for a CAD program so last night I decided that I should see what I could do. I took a few measurements from the vents and the dash and made what you see below. I had to make a few assumptions about where the vents are located and where the lever is and how big its opening is. but I think it looks pretty good. I am going to look at it a little more closely make some minor adjustments and thicken it up a little.

I am breaking this down in a few design stages a few of them might end up over lapping. during the design stage I am using a PLA filament. when I have the final piece I am going to either use ABS or another material that can stand up to the heat and cold that this will see being in a car.

1: Front plate
2: Front plate with the dash mounting points
3: Add the parts that will hold the vents
4: extend the assembly and add the door
5: make the linkage for the lever to control the door.

If some one reading this has an original 69 center vent assembly and has a caliper I could use a couple measurements mainly how thick the center support is between the vents and the relationship between the vents and the left and right side of the dash opening. same thing for the lever opening and how big the opening is.

Thanks and I will keep you guys posted ( Sorry about the last two pics being upside down.)
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post #2 of 25 (permalink) Old May 25th, 19, 10:13 AM
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Rick
 
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Re: New! 69 Center Dash Vent assembly

Hello,

VERY, very nicely done with the 3D printing. You might have just built a small market for yourself and a budding business. My oldest son is also into 3D printing and has done several things for me that have worked well long term. But yes, some 3D filament string things withstand heat and fuel fumes better than others.

But yea, nice work on your part!!! And I would not post your STL file to Thingaverse nor any other place. It will quickly be copied and your work stolen.

Rick
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post #3 of 25 (permalink) Old May 25th, 19, 9:59 PM
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Re: New! 69 Center Dash Vent assembly

Cool. Start figuring how much you'll sell them for.

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post #4 of 25 (permalink) Old May 27th, 19, 7:18 PM Thread Starter
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Re: New! 69 Center Dash Vent assembly

Quote:
Originally Posted by B52bombardier1 View Post
Hello,

VERY, very nicely done with the 3D printing. You might have just built a small market for yourself and a budding business. My oldest son is also into 3D printing and has done several things for me that have worked well long term. But yes, some 3D filament string things withstand heat and fuel fumes better than others.

But yea, nice work on your part!!! And I would not post your STL file to Thingaverse nor any other place. It will quickly be copied and your work stolen.

Rick
Quote:
Originally Posted by NickeyChevelle View Post
Cool. Start figuring how much you'll sell them for.
Yeah not going to share the file. Not planning on starting a full time business either but I do plan on selling them to help fund fixing up the Chevelle.

Not sure on price yet. Need to finish the design first figure out how much time and material each one is going to take.

Well round two was a little bit of a failure but gave me something to work off of. The gap in-between the vents was too thick and the holes for the vent were in the wrong spot. round 3 is currently printing should know tomorrow if its any better. Also I felt like I was on a roll and deviated from my own design plan and decided on making the vent holder first.
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post #5 of 25 (permalink) Old May 27th, 19, 8:37 PM
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Re: New! 69 Center Dash Vent assembly

Quote:
Originally Posted by barkerpa3466 View Post
Yeah not going to share the file. Not planning on starting a full time business either but I do plan on selling them to help fund fixing up the Chevelle.
You'd never be able to enter large scale production using a 3D printer -- they're too slow, and their materials cost too much. However, if you were to locate a company that does plastic moldings, you could take your production ready prototype to them and find out how much a "run" of the part would cost.

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post #6 of 25 (permalink) Old May 27th, 19, 9:08 PM Thread Starter
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Re: New! 69 Center Dash Vent assembly

Quote:
Originally Posted by NickeyChevelle View Post
You'd never be able to enter large scale production using a 3D printer -- they're too slow, and their materials cost too much. However, if you were to locate a company that does plastic moldings, you could take your production ready prototype to them and find out how much a "run" of the part would cost.

Plastic Fabrication & Manufacturing | AIA Plastics
Agreed about the slowness. Cost not so much a 1 Kg spool of ABS is about 20 dollars and I could probably make at least 6 whole assemblies from that if not more. The biggest factor for the cost for me is the wear on my printer and second what I charge for my time in designing the assemblies third is going to be my power bill for running the printer.Lastly towards cost is going to be what I think the quality of the assembly is and demand (I'm not going to price gouge but I am going to charge what I think its worth.). Large scale production is not the plan I doubt that there is enough demand for it otherwise a big company would have done it. but if I could sell a couple dozen that would make it worth it for me to get parts for my Chevelle and help out the community. Figured I could make one for a 68 as well when I take my 68 dash out of the car.


And yes I saw the link in your post it will keep it in mind.
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post #7 of 25 (permalink) Old May 29th, 19, 11:58 AM
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Re: New! 69 Center Dash Vent assembly

i have a caliper and a 69 center vent in a spare dash in my storage.

if you tell me what measurements you need I can get them for you.

ROB

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post #8 of 25 (permalink) Old May 29th, 19, 1:07 PM
 
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Re: New! 69 Center Dash Vent assembly

That looks Great! Thats the only part i am missing in my 69. If your willing to make me one, send me a message with some details!
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post #9 of 25 (permalink) Old May 29th, 19, 10:34 PM Thread Starter
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Re: New! 69 Center Dash Vent assembly

Quote:
Originally Posted by robpp View Post
i have a caliper and a 69 center vent in a spare dash in my storage.

if you tell me what measurements you need I can get them for you.
Yeah totally if your willing. Is it possible for pics too? there are only a few online and I am curious what the inside looks like. I am having trouble getting the vents in.

Quote:
Originally Posted by thebaileys2006 View Post
That looks Great! Thats the only part i am missing in my 69. If your willing to make me one, send me a message with some details!
Not anywhere close to having a final unit for my self much less for any one else at the moment still working on it so stay tuned.




Ok so as you can see in the background I have a few prototypes printed none of them is spectacular or fully functioning. Currently having trouble getting the vents inside the assembly while keeping the tolerances tight currently working on a couple different ideas one making the back half of the center section removable, the other is using a printable flexible material as a bushing/fallible space that would allow the vents to slip in and out. Actually I think I just came up with the fix or at least something to try, open the back of the center support up so its a slightly closed C and using a rubber-ish bushing to hold the center vent supports in place, guess I am going to have to order some different filament. Also have the first version of the rear flap printed think I need to make it a bit bigger to fill up the space a better, probably going to over size it a little so its close at a about a 45ish degree angle.

Still have a ways to go but I think I am getting there.
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post #10 of 25 (permalink) Old May 30th, 19, 8:14 AM
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Re: New! 69 Center Dash Vent assembly

Great work, I am following along due to the 3D printer part. I know how little things keep popping up when designing a part then finding something off when you print it. I designed a sight mount for a pistol I have and a co-worker printed it for me. It took me 3 tries to catch all the clearance issues, and make changes that weren't obvious on the PC.

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post #11 of 25 (permalink) Old May 30th, 19, 9:11 AM
 
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Re: New! 69 Center Dash Vent assembly

what kind of 3D Printer do you have?
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post #12 of 25 (permalink) Old May 30th, 19, 1:21 PM
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[QUOTE=barkerpa3466;11086622]
Quote:
Originally Posted by robpp View Post
i have a caliper and a 69 center vent in a spare dash in my storage.

if you tell me what measurements you need I can get them for you.
Yeah totally if your willing. Is it possible for pics too? there are only a few online and I am curious what the inside looks like. I am having trouble getting the vents in.

Here few pics. Let me know what you need. And measurements too
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post #13 of 25 (permalink) Old Jun 2nd, 19, 9:29 AM Thread Starter
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Re: New! 69 Center Dash Vent assembly

Quote:
Originally Posted by thebaileys2006 View Post
what kind of 3D Printer do you have?
Qidi Tech X-Plus. Probably could have gotten away with a CR-10 for about half the price, but I didn't want to spend a month learning the inns and outs of it before getting a good print. This guy I literally un-boxed it plugged it in, loaded the filament leveled the bed and printed the test file and I was off the to races. So I was able to focus on learning the CAD software.



Ok, progress update. I am finally able to get both vents into the assembly, still need to open up the tolerances a little more but I'm going in the right direction. Thanks @robpp for the pics they helped.
So next I'm going to make it so its easier to get the vents in and out and add the slight downward angle that the main face in relation to the body. once that is dialed in I am going to work on the mounting points.
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post #14 of 25 (permalink) Old Jun 11th, 19, 10:00 PM Thread Starter
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Re: New! 69 Center Dash Vent assembly

Update,
So this is actually the third red printing. First failed due to the bed being out of level, the second failed due to bad setting choices on my part but was good enough to get an idea of things. On the second print I had the lower mounting tabs at 90 degrees to the body not the face and I noticed that the angle was off but didn't pay close enough attention that when I re-worked the design to angle them I set the angle the same as the face, I was going the wrong direction as you can see, that bad second print also showed me that I need lengthen each mounting point and open the hole a little. As you can see I have the location of the mounting points set pretty good now I just need to get the angle right.

So I have done the third re-design for the red prints I have angled the lower mounting points away from the face of the vent assembly and added some structure to the bottom of the vent to support the mounting points I have also added the top mounting point, its just a tab sticking out of the top in about the right location I think. Its just a good reference point for some measurements for the fourth design of this stage at this point.

The print time is jumping up to about 25 hours for the main body at this point but I am still playing around with the orientation and other settings.

Fingers crossed for the 4th red print.
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post #15 of 25 (permalink) Old Jun 11th, 19, 10:24 PM
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Re: New! 69 Center Dash Vent assembly

Looking very good.

Dumb question: Are you planning on incorporating the lever thingie on the right side of the face?

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