Looking For A CAD Model (1 Viewer)

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Dec 2, 2009
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Location
Tomball, Texas
Building an FJ40 in CAD

Looking for a FJ40 frame model to do some mock-ups, it will need to include all tapped holes or as close to all as possible, I will also need the front end to be complete.

I'm working in Inventor, so an .ipt would be great but iges/step or sat will do fine, any body panels would be great as well
 
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lol,

I didn't htink it would be that hard, i took an old frame pic that shows side and top and did a quick model, I guess I'm gonna have to crawl under the 40 tonight and pull some tape to get the holes, perhaps I'll just post what I make when I'm done.

Seems that 40 models are hard to come by, I guess I'll try and add what I can to the mix, although it would be a lot easier if my tub was off.... should have done this before I finished putting it back together... oh well hind sight is 20/20
 
anyone have access to a 3d laser scanning system? I've contracted this out before and its expensive, but if you know anyone that owns the equipment, its probably something they could do pretty quickly.
 
Yeah, good luck with that. The people that have those are not likely to give it away given the costs/time to create it. The best you can probably get is the frame diagram out of one of the shop manuals. That's pretty easy to find on here. These have all the dims in mm for frame straightening. I used those dims to create a model a decade ago or so in microstation, but there are still lots of "guesses" along the way that you will need to do field measurements on beyond the diagram.
 
i found this frame diagram online, looks to be right hand drive

most FSM have the body and frame dimensions with line drawings as well, I would scan them in for you, but have no working scanner ;(

larger res image here:

http://www.rufusthedoofus.com/fj40-frame-dimensions.jpg
fj40-frame-dimensions.jpg
 
Thanks, I cut out the one in my book, after touching it up in Photoshop and bringing in the image as a background in my CAD and aligning it, the difference in total lengths was .001, so I'd say I have a good base to start with.

I already have the outer rails with major holes and I'm measuring and working on the inner rails now. I will pull dimensions for the tapped holes I can reach throughout the week and add the other cross members and mounts, I should have a correct frame model shortly.

I had to guess on the frame radii both tops and bottoms as the above pictures gave great horizontal scalability, but not so much vertically.

Here's a couple teasers, (these are before I made the bend outward, that bend will be confirmed with the hole centers from the body mount brackets once those are completed being modeled

Rail-01.jpg


Rail-02.jpg
 
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What do you need this for? If you're building parts the interface closely to the frame I'd be verry wary of using those paper drawings as anything but sketches, they are certainly not engineering drawings.
 
I actually not using them, they are reference drawings. If you notice, my model does not follow them exactly, but the dimensions they provide and the "basic" profile they give do provide a good starting base.

I am pulling tape on my frame and checking as best as I can the projected edges for the curved frame rail, so far I am getting good numbers and consistent with what the drawing lists out. The main thing will be the criticals as determined by the body/frame mounting brackets.

Once I finish modeling the brackets I can assembly them in and tweak the frame rails to give the correct dimensions, right now some of the angles are best guess and rounded up or down to the nearest 1/2 degree and I am also rounding my inch measurements to the nearest .5 mm conversion, as mentioned before, based on the model of the rail I created and what the sheet says, my first pass was 144.882" long, and 3680mm's equals 144.881" (so I think .001") is a good lead off for using a scanned drawing.

I used the bottom edge of the frame rail as a reference to draw my profile and measured the rail height at each "bend" to determine a true width, the above pic was way off concerning the width of the frame rail in places
 
I started a rack idea about 4-5 months ago. I'd like to finish it and I need a correct frame in order to tell where I can and can not tie into. I also have a few other ideas for things I'd like to design or test out.

I am a 3D modeler by day so for me, this is a normal workflow to model it instead of just trying to bend metal and make something by trial and error, plus it seems that others are in need of a good models, so why not.

I have the back end of my FJ modeled and before I can attempt the cowl, dash, windshield and engine area I need a solid frame to cross confirm everything with.

Virtual prototyping will always save on time, material and resources in the end.
 
I'd wager that there is a MUD member withing throwing distance of you that has a bare frame you can tape out. Much easier than crawling around on the floor. Unless of course you have a rack you're pulling it up on and just walking around underneath it......
Looks good so far, keep it up. We can always use a good drawing.
 
Okay, challange taken, does anyone in or around the Houston area have a 40 frame I can come pull tape on and maybe snap a few pics. Getting to the brackets would be a lot easier if it were bare.

I'll take a 45 frame as well if anyone has one of those...???

Here's the assembly layout, of course once I get the brackets modeled and in the assembly I will adjust the dimensions a little to make sure those hole centerlines are the controling dimension as laid out in the referenced image

FJ40FrameRail.jpg


FJ40FrameRail2.jpg
 
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The holes and slots cut into the inner frame rails are just placed, I will pull the distances and correct positions for them when I get home and maybe get in the mid cross members tonight

FJ40FrameRail3.jpg


FJ40FrameRail4.jpg
 
Wow! What software are you using?
 
Too bad you don't live in the Austin area, I have a 40 frame on my slab right now that's bare, has been bare, and probably will continue to be bare since I don't have a title for it. Unless I build a buggy out of it...
 
Here's a simple render, the software is Autodesk Inventor, Id really like to model a 40 in Luxology's Modo, but I haven't dedicated the time to learning that one as well as I know Inventor

Render1.jpg
 
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