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  • November 21, 2018, 07:36:33 AM

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Author Topic: 3d Cad designing for fabrication/part reproduction  (Read 582 times)

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Offline Murdoc1905

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3d Cad designing for fabrication/part reproduction
« on: July 13, 2018, 06:41:39 PM »
Hello, I have been messing around with Autodesk Inventor for years, 4 years of it in high school, and I now have Inventor 2016 that I mess around with. I've always loved designing and fabricating.  I am by no means a professional, and can't for example tell you how much force or how heavy a part will be, but I have toyed with 3d designing parts that often break for possibilities in CNC reproduction (hood pull handles, Hatch hinges)

Offline eaglefreek

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #1 on: July 15, 2018, 07:53:23 PM »
If there is one thing that is needed by Eagle owners, it would be stronger hatch hinges. However,  until the used supply runs out, I don't think many would be willing to pay what it would cost to make a set.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission


 

"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
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Offline Murdoc1905

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #2 on: July 16, 2018, 04:35:53 PM »
Yeah, I just did some preliminary design on the upper hatch part out of cnc aluminum 6061 I believe, and it was running $45 a part. That's without the bolts or hinge pin. I didn't have any dimensions for the hinge itself as I only have a sedan, but I imagine it would run around $80 a hinge. There is a possibility of cheaper if I fiddle with things. But I'll have to get my hands on a hinge to get a more accurate cost analysis.

did my fiddling and found it more expensive lol. but I did add a finish and what not to the part.
« Last Edit: July 16, 2018, 09:03:00 PM by Murdoc1905 »

Offline Murdoc1905

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #3 on: July 16, 2018, 09:01:37 PM »
just for reference this is based on a 3.7"x4.7"x1" part that is copper and zinc plated costs around $72 per part for an order of 25 parts. so I can imagine that it would be a steep price to pay for half a hinge.

Offline vangremlin

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #4 on: July 17, 2018, 02:23:25 PM »
A couple years ago I came across a pretty good set of rear bumper ends for an SX/4 and looked into getting them 3D scanned for ultimately getting them 3D printed someday.  The price just to scan them was going to be on the order of $300-400, not including time to "clean" up the scans.  I'm not sure what the cost of actually printing them would have ended up being but I decided it was not a good investment for me.  Yes, there are quite a few SX/4 owners that need bumper ends, but don't know how many are willing to pay several hundred dollars for them. 
1981 Kammback 258 - "Pepe"
1980 Coupe 258 - "Ginger
1972 Gremlin X 304
1978 Gremlin 4 cyl 121 - sold
1964 TBird 390 - sold

Offline Murdoc1905

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #5 on: July 17, 2018, 02:36:46 PM »
Yeah I've heard about that issue many times, that would be something that would be very difficult to reproduce accurately due to all the complex angles and multi-part mold requirements for mass production, 3d printing has come a long way but I'm not sure it will give fast and smooth results. Best idea I can come up with is building a new design out of metal since it seems easier a material to work with.

Offline eaglefreek

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #6 on: July 17, 2018, 07:00:31 PM »
The hinges aren't flat and square, they have some angle or twist to them and on top of that, they are handed. A few years ago, a member made a set on a CNC and said he would have to charge in the $250 range for a pair, if I recall.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission


 

"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
Click for Fayetteville,TN Forecast" border="0" height="100" width="150

Offline Murdoc1905

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #7 on: July 17, 2018, 08:01:53 PM »
Yeah, I imagine they are a bit more complicated than what I designed. That was using "emachineshop's" cad program just to see what they would charge for something resembling the part

Offline mudkicker715

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #8 on: July 17, 2018, 11:11:26 PM »
I believe the sunvisor hinge pivots could be a thing to look at. There was a gm version that shared it, idk what anymore. Just a thought.



Manitowoc WI

Offline Murdoc1905

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #9 on: July 25, 2018, 10:40:18 PM »
done and done.


XD but seriously, I am looking into what other types of sun visors would fit the screw pattern.
« Last Edit: July 25, 2018, 10:41:29 PM by Murdoc1905 »

Offline vangremlin

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Re: 3d Cad designing for fabrication/part reproduction
« Reply #10 on: July 26, 2018, 01:57:46 PM »
lol those are great visors, would love to have one of those on my Eagles lol.
1981 Kammback 258 - "Pepe"
1980 Coupe 258 - "Ginger
1972 Gremlin X 304
1978 Gremlin 4 cyl 121 - sold
1964 TBird 390 - sold

 

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