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PostPosted: Wed Jan 22, 2014 8:39 pm 
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Diabolical wrote:
I hate that.. Then you sit there thinking about it the rest of the day.

A little tip.. and its not that big of a deal.. If you were to slow the wire speed down just a fraction it would help with the tiny bit of splatter.
Nothing wrong with the welds.. They look great, Heat setting is just about perfect.
Looks like you're welding using the "push method". I prefer that method as well.

I use a 75/25 Argon/CO2 mix for MIG.. CFH @ 17-20
Once I get the heat right, I just fine tune the wire speed.
They (Your local Welding Supply) sell a spray called "Anti-splatter".. You can spray the area just before you weld and all the little splatter-balls fall right off.
Helps a lot. I use it in hard to reach area's that may be difficult to clean later.
Just something to try :)

The only way you get better at welding is seat time!
By the looks of it.. Your putting in some work.

Mike


I'll give the wire speed change a try. Ever little tip helps. I've found that the push method (at least for me) puts out a cleaner/more visually appealing weld. Even if it's in an area no one will ever see, I will have seen it, I'm ocd like that.
75/25 is the same as what I use. Although I think my cfm is upwards of 20-25
I will also give the anti-spatter spray a try as well, once I make it back to the supply store.

Thank you for the positive feed back.

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PostPosted: Wed Jan 22, 2014 8:51 pm 
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Strut rods are finished.

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PostPosted: Wed Jan 22, 2014 9:22 pm 
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Turning out very nice! :wink:

How did you design and calculate the locations for your front suspension?
Take a look at the links below.. Excellent reference.
I have articles on both in way more detail if you are interested... Just let me know.

Ackermann steering geometry
http://en.wikipedia.org/wiki/Ackermann_ ... g_geometry

Bump steer
http://en.wikipedia.org/wiki/Bump_steer

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PostPosted: Wed Jan 22, 2014 10:23 pm 
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For the most part I used my car, which has a McPherson type front suspension with aftermarket BC coilovers.
I wouldn't mind taking a look at the articles.
I remember looking at the bump steer article when I started working on the rack and pinion.

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PostPosted: Thu Jan 23, 2014 9:50 am 
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Look here for some good info on Bump Steer
http://www.longacreracing.com/articles/art.asp?ARTID=13

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PostPosted: Thu Jan 23, 2014 10:29 pm 
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I'll definitely take a look at it. Probability a different one than what I used.
Now you got me thinking. Which is good... and bad.
Good as in I will be checking a few things regarding the suspension and steering. But bad as in if something turned out to be wrong then I would end up tearing a bunch of stuff out and redoing it.

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PostPosted: Thu Jan 23, 2014 11:25 pm 
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I know the feeling.. I learned the hard way on the first one I did.
The last thing I want you to do is second guess yourself.
But, you do want it to work right the first time :)

You are close enough (from what I can see) that it wont be difficult to tune up.
Below I will post a couple of diagrams to help you see the picture.

Here is how you adjust.
Image

Look at line #2
Image

Again, Look at line #2
Image

That intersecting line between the upper control arm mounting point, lower control arm mounting point and the joint on the rack is very critical.
If these don't line up you will create a binding effect as the suspension tries to travel.

When I build my front ends I take a big piece of cardboard and draw out the frame rails. (Leaving room for the control arms and spindles)
Next I draw my rack in place.. This give me a reference for the pivot point for the rack.
Then I mark the locations for the spindle (taking consideration of total track width as if the tires were on)
Now you can draw in your upper and lower control arms.
Finally, You now have a reference point for your a-arm mounting locations.

For testing make the pieces out of cardboard and connect everything with welding wire..
Cycle the pieces. If you are off the wire will bend where there is a bind.

Good info here too.
http://dazed.home.bresnan.net/suspension101

Hope it helps.

Mike

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PostPosted: Fri Jan 24, 2014 12:37 am 
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Diabolical wrote:
Turning out very nice! :wink:

How did you design and calculate the locations for your front suspension?
Take a look at the links below.. Excellent reference.
I have articles on both in way more detail if you are interested... Just let me know.

Ackermann steering geometry
http://en.wikipedia.org/wiki/Ackermann_ ... g_geometry

Bump steer
http://en.wikipedia.org/wiki/Bump_steer


I am unsure how to word this without sound like a complete dick. So I apologize in advance. Just trying to clear up some possible confusion.
The upper and lower control arms are OEM, I cut the top of the strut casing off and made a new top for the coilover to mount to, made it taller so I wouldn't need to use a really high spring rate. To help maintain a better ride quality.
Moved the lower mount to adjust for caster angle on the coilover. Using the same camber angle as the strut that I removed.

This is my first build, so I'm learning as I go. Watching videos, browsing the internet for useful information, Magazine articles. Pretty much anything I can get my hands on.

I really do appreciate all the information you have provided and the thumbs-up so to say on some of my work.

More than likely I may have confused myself with your question about the suspension geometry.

Also the strut rods (the most recent pics in the build) are relocated from the front side to the back side of the lower control arm.
This is the source I used on how to do it.
http://www.minitruckinweb.com/tech/chas ... me_finale/

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PostPosted: Fri Jan 24, 2014 9:50 am 
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There is absolutely nothing wrong with your build.
I am only giving you reference to check the most common mistakes when building a new front end.

From what I read in the article, they didn't give you the little details that matter the most.
Just make sure the pivot points line up the best you can. Try to cycle the suspension without the shocks installed.
Physics will dictate how close you really are.

If its off.. It can be fixed. Don't let it frustrate you.

Mike

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PostPosted: Fri Jan 24, 2014 8:35 pm 
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Thank you.

Once I had it all tacked up I did run it through the motions before I finished welding it, and ever thing seemed to work as intended.

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PostPosted: Sat Jan 25, 2014 10:20 am 
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As long as you did it with the rack connected everything should be fine..
I found out the hard way.. ;)

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PostPosted: Sat Jan 25, 2014 5:48 pm 
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the rack was connected.

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PostPosted: Sun Jan 26, 2014 2:06 pm 
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There is a good possibility that I am going to go with a Vintage Air unit for heating and cooling (and by cooling, I mean just air no AC) for the truck.
So after I put the cab back on the truck I pulled the Heater Box and controls.
Put the steer shaft and wheel back in the truck to see what I'm going to need to hook everything up.
Any input would be helpful.

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PostPosted: Mon Mar 03, 2014 7:46 pm 
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A little progress.

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PostPosted: Thu Mar 27, 2014 10:13 pm 
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Took forever to find the metal for this. The shop I was buying metal from went out of business, they were the only shop within 30 miles that did piece work, all the other places wanted me to buy a 4-8 sheet. Ended up getting some smaller sheets (12x26) from a hardware store in my town. Plus had to have a friend of mine, throw a 90 deg bend in it to fit the contour of the area I wanted it in. On top of all that, having trouble motivating myself to work on the truck. Although on payday, I am going to order the stuff I need to finish the steering, so I have that going for me.

By no means is this finished, just wanted to show what I have been working on.

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PostPosted: Fri Mar 28, 2014 12:38 am 
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Looks good, Should be a fun toy when its finished. Where at in washington are you?

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PostPosted: Fri Mar 28, 2014 4:27 pm 
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78chevyluv wrote:
Looks good, Should be a fun toy when its finished. Where at in washington are you?


Thank you. Winlock.

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PostPosted: Fri Mar 28, 2014 6:25 pm 
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I'm right up the road in napavine, hope to see it cruisin around someday

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PostPosted: Fri Mar 28, 2014 10:14 pm 
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lookin dang good dude all those final touches really seem like nothing once your on the final stretch

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PostPosted: Sat Mar 29, 2014 7:06 pm 
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78chevyluv wrote:
I'm right up the road in napavine, hope to see it cruisin around someday


Oh really. If you ever want to come take a look at the truck, send me a pm. ;)
Every time I set a time that I think the truck will be done that time comes and goes, so I've decided to not set a date because it'll just be done when it's done. Someday I'll be able to cruse around in it.

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