Hi Oli,I think I'll leave it all the way it is for now,maybe its time to just put some miles on it,the alignment was the culmination of an eighteen month restoration,(as usual it cost more than the value of the car) and was bought as a grown ups constrution kit to give the grey cells a sense of purpose,overall I am pleased with the end result, what next? maybe one with the engine in the back,all the best John.
Rear camber adjuster
- Thread starter pegasus
- Start date
Indi9xx
New member
The actual name of the manufacturer is "John Bean" which is now part of snap-on tools. "Jim Bean" is an industry nickname for "John Bean" equipment by those who do not like it, as a reference to whisky, drunks and other negative images connected with what you want an alignment machine to be.
Just as a curious note.......
Their kit used to be much more accurate when they used CCD technology.. Unfortunately "BearUSA" ownes the pattent on CCD technology and they sued "jim bean" (lol) and a number of other manufacturers... the upshot was that apart from bear, nearly all other manufacturers had to switch to using reflective disk systems which are not as accurate. To prove that CCD is the way to go, Bear's patent on CCD is about to run out, and all the other manufacturers have announced that they are going back to CCD based alignment machines.
Indi9xx
New member
Not sure what it stands for (apart from all the manufacturers who are releasing systems that use it, also all call it CCD)
It works by each wheel having a wheel head, or box of electronics clamped to each wheel.
Each of the wheel heads has two cameras and two scanning lasers, each head uses the cameras and lasers to look directly at the wheel head on the opposite side of the same axle and at the wheel head on the other wheel on the same side.
In effect each wheel has 2 lasers and two cameras to track the lasers keeping an eye on the position in 3d space of two other wheel heads.. this is what makes it so accurate (it displays a resolution on the screen of a 60th of a degree, but internally its 10 times more accurate than that!!).
Each wheel head also has its own microprocessor built in, which analyses the results from the cameras and controls the lasers and them sends that information back to the main computer console.
Compare this to the typical 4 wheel alignment system, which uses reflective disks bolted to the wheels which are often an array of hexagons being monitored by a camera which is working out what shape the hexagons are to decide where they are in 3d space. Which is reasonably precise.. more precise than visual alignment equipment.. but often only accurate to a 10th of a degree.
Jon,
Interesting. What you describe is a system very similar to that used by the people who aligned mine (Wheels in Motion), but I thought that their kit was made by WIN - or someone. (I remember it as the guy using it - Tony Bones - made a play on it being very similar to WiM, which is their corporate acrostic.)
Oli.
Interesting. What you describe is a system very similar to that used by the people who aligned mine (Wheels in Motion), but I thought that their kit was made by WIN - or someone. (I remember it as the guy using it - Tony Bones - made a play on it being very similar to WiM, which is their corporate acrostic.)
Oli.
Diver944
Active member
If it involves cameras as Jon says then I imagine it stands for Charged Couple Device.
I used to dabble with amateur astronomy and before digital cameras became common place you could attach a CCD to your telescope and make very detailed and long exposures onto a PC instead of photographic film. Very good for capturing faint stars or galaxies during a multi hour exposure
[geek mode off] [8|]
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