New Version of my 4-link Analyzer & Request for Help - Page 9 - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 12-09-2005, 11:54 AM   #201 (permalink)
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You need to change it at the top of the "Main" tab.
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Old 12-09-2005, 02:08 PM   #202 (permalink)
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Quote:
Originally Posted by ravencr1
Yeah, I have to come up with an accurate CG to really compare the numbers. I guess I have the front and rear of it separately, then the whole vehicle, right?

Chris
No you just have to guess. You can sort of calculate it by weighing front and rear and then jacking one end up, but you don't get very acurate numbers, and then you have to get an acurate measurment of the unsprung mass(axles wheels tires etc)... So much work and so inacurate that it isn't worth doing....
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Old 12-09-2005, 07:07 PM   #203 (permalink)
 
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Very Cool!

I didn't have time to read all the 9 pages on this post but I did try out the program. It's pretty cool! I really like the way it graphs out the links.

Clayton
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Old 12-10-2005, 07:52 PM   #204 (permalink)
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Quote:
Originally Posted by mudtoy67
I believe in this 4link calculator 100% is neutral. I asked about this a while back when extreme 4x4 tv did a 4link and said they were shooting for 10%, which on this calculator would be 110%.
Extreme4x4 used my calculator on their show. Their 10% ment 10%. If you want to find my opinion you can search for it
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Old 12-11-2005, 06:29 PM   #205 (permalink)
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Quote:
Originally Posted by Triaged
Extreme4x4 used my calculator on their show. Their 10% ment 10%. If you want to find my opinion you can search for it
Sorry, I got this info from this thread:https://www.pirate4x4.com/forum/showthread.php?t=391960
You posted in the thread, but never corrected anyone as to wether the info was correct or not. I'll have to remeber this for next time I'm using it.

Quote:
Mudtoy67 - I saw that episode. Thing that got me was that they said they're optimal AS was 4%. Everything I've seen here on PBB says around 110%. What gives? Are they doing something wrong, or just a different way of doing the same thing?

BrettM - they are probably referring to 104%, since 100% is considered neutral.
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Old 12-25-2005, 06:48 PM   #206 (permalink)
 
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Roll Axis Angle Question...

Is the goal for the roll axis angle to be zero?

Chris
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Old 12-25-2005, 07:23 PM   #207 (permalink)
 
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Also, if my angle between my lower links at the frame end is greater than 40 degrees, am I okay to remove my panhard bar? I'm talking about the right frame (right) side of my lowers: >. I heard that I could remove the panhard bar if the angle of separation is greater than 40 degrees, but I'm not sure where to measure that angle?

Chris
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Old 12-25-2005, 09:54 PM   #208 (permalink)
 
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Here's a couple of pics. I know I haven't touched the upper links yet, but I'm thinking about doing it in stages to test out all the possibilities. My question is if I could remove the panhard bar based on the angles of separation of my lower links:





And, for comparison sake, here's the stock setup using the same CG for an accurate comparison:



I thinking that I've gained 12 degrees less of oversteer, a 7" lower Roll Center (not good, right?), and a 13% increase in antisquat. What do you guys think?

Chris
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Old 12-26-2005, 12:20 PM   #209 (permalink)
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Quote:
Originally Posted by ravencr1
...What do you guys think?
I think it is time to start your own thread and put some useful info in it to go with what you have posted.

In there you can answer some questions like:

1) Is this the front end or back end?
2) Is that stock setup you show a lifted 5-link from a late model jeep?
3) Did it use a Panhard bar?
4) What is the intended application?
5) Do you intend to keep the stock upper links?...if so why?

Just so you have something to go off of:
-If you made an ok guestimate of your CG than over 100% is too much (some people will tell you other than that...I think they are wrong ).
-You want 0deg for your roll axis. If it will be driven on the street it should be somewhere between 0 and 5deg roll understeer (Not Oversteer).
-Those upper links look a bit short for the length of the lower links.
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Old 12-26-2005, 05:04 PM   #210 (permalink)
 
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Quote:
Originally Posted by Triaged
I think it is time to start your own thread and put some useful info in it to go with what you have posted.

In there you can answer some questions like:

1) Is this the front end or back end?
2) Is that stock setup you show a lifted 5-link from a late model jeep?
3) Did it use a Panhard bar?
4) What is the intended application?
5) Do you intend to keep the stock upper links?...if so why?

Just so you have something to go off of:
-If you made an ok guestimate of your CG than over 100% is too much (some people will tell you other than that...I think they are wrong ).
-You want 0deg for your roll axis. If it will be driven on the street it should be somewhere between 0 and 5deg roll understeer (Not Oversteer).
-Those upper links look a bit short for the length of the lower links.
Sorry, I'll do that. Didn't mean to hog the thread.

Chris
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Old 12-26-2005, 06:34 PM   #211 (permalink)
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x100 what Triaged said!

Keep that AS down, over 100 requires a center limit strap. which equals the gayness

I shot for 80% on my rear and I am happy with it. If I get high centered and try to climb I start to hop. That is cause the AS has gone too high. I would hate for that to happen at ride height. I have no Idea what I ended up with. One of these days I will find the CG and let everyone know how I like it...
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Old 12-26-2005, 07:26 PM   #212 (permalink)
 
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Here's the new thread I started:

https://www.pirate4x4.com/forum/showt...72#post4904772

Thanks for the help guys,

Chris
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Old 12-26-2005, 07:40 PM   #213 (permalink)
 
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I got the program to work fine for about a month. I hadn't messed with it. Now when I opened it it's a read only file. I don't know what happened. Also, the drawings for the upper and lower links has never worked. I've tried to reload it and everything. Including redownloading open office and the 4 link calculator. Any ideas?
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Old 12-27-2005, 01:58 AM   #214 (permalink)
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Originally Posted by AKBroncoII
I got the program to work fine for about a month. I hadn't messed with it. Now when I opened it it's a read only file. I don't know what happened. Also, the drawings for the upper and lower links has never worked. I've tried to reload it and everything. Including redownloading open office and the 4 link calculator. Any ideas?
I don't think Open Office will show the "graph" that shows the position of the links...you just have to use your imagination. I don't know why it would be read only...can you save it as a different name?
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Old 12-27-2005, 06:04 AM   #215 (permalink)
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mine will only do a "read only file" also. but i ride the short bus when it comes to computers so i may be doing something wrong.
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Old 12-27-2005, 06:30 AM   #216 (permalink)
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Try this.... open up your Windows Explorer and located the Excel file (4BarLinkV3.0c.xls) and right click on it. Select Properties from the list. At the bottom of the window that opens up you will see "Attributes" and a couple of check boxes. If the "Read Only" box is checked.... uncheck it and hit OK.
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Old 12-27-2005, 12:23 PM   #217 (permalink)
 
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Read only was not checked in properties. Man, this sucks. Don't know what the deal is.
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Old 12-27-2005, 12:27 PM   #218 (permalink)
 
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Alright, I figured it out. I had to save it under a different name, then reopen it. I wonder why it was like that.
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Old 12-27-2005, 05:53 PM   #219 (permalink)
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Did you extract the file from the zip before you started messing with it? That might have been the problem. When you saved it under a different name you also saved it in another (non-zipped) directory.
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Old 12-27-2005, 07:36 PM   #220 (permalink)
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Quote:
Originally Posted by Triaged
Did you extract the file from the zip before you started messing with it? That might have been the problem. When you saved it under a different name you also saved it in another (non-zipped) directory.
Im thinking this is the case, if you just open the file without unzipping it, the file will open as read only....What you need to do is open the directory where the zip file is, locate the zip file right click on it and select extract all, select the directory in wich you want the file to go click ok and you are set....
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Old 02-23-2006, 06:40 PM   #221 (permalink)
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Did you ever get the pinion angle thing to work?
I tried to find it, but couldnt I am using the v3.0 (second link in the first post)
I have tried to read this entire Thread since I just ordered my rod ends.
This thing is sweet. Keep up the good work dude.
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Old 02-23-2006, 07:28 PM   #222 (permalink)
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I haven't even messed with it for many months. I do need to start getting back into it soon...
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Old 04-13-2006, 02:48 PM   #223 (permalink)
 
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There have been a few people mentioning a 3 link with panhard bar calculator. Did I miss the link or is the 3 link calculator not in existence?

BTW, version 3 of the four link works very well. I appreciate the work you've put into it.
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Old 04-13-2006, 03:14 PM   #224 (permalink)
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Originally Posted by Redyoder
...Did I miss the link or is the 3 link calculator not in existence?...
I edited the first post to include the link. It was buried around page 7-8 in this thread.

http://mysite.verizon.net/triaged/fi...kV1.0bBETA.zip
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Old 10-19-2006, 09:01 AM   #225 (permalink)
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Are you pressing the 'calculate' button?

Those cells change via the Solver add-in, if you don't have that they don't work.

I once started playing around with plotting the bump/droop, as well as integrating the 3-link and 4-link calculators to put the front and rear suspensions on the same page. Quickly got lost in pages upon pages of worksheets and calculations but managed to get a nice looking plot of the front and rear. If I get up the motivation maybe I'll clean it up and make it so other people can use it too.
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