Massive caster variance Side to side
This is where there is difficulty in understanding the difference.
This gauge:
Does not stay in place the entire time. It can be removed and reattached. This gauge is used in a different manner than what is used on an alignment rack. Think of it this way: Turn the steering wheel 20 degrees to the LEFT and attach the gauge. After measuring, the gauge is removed, the steering wheel is turned to the right and the gauge is reattached, recentered and the caster is checked again. The gauge doesn't have to stay in place during the steering of the wheel. The wheel can spin 180 degrees and it won't affect the measurements because the gauge is essentially recalibrated each time it is reattached.
Again, if you haven't seen the video or used this tool, it may seem strange to you.
I once had a guy on the job that was one of those guys that loved new tech and stuff like that. I had to measure an opening to build a roof in between two beams. I told him to grab my tape measure and go up on the ladder while I got up on the other. He said..."I have a better way".
He pulled out what looked like a laser pointer and put it against the beam nearest him and aimed it at the beam nearest me. 30 feel, 11 1/8". Then we pulled my tape measure and got 30 foot 11 1/4". The tape had sagged a little in that span (Giving a false longer reading) so I figured that I'd go with his number and it was right. New tech sometimes does work.
Not always...I'm not a fan of using battery powered circular saws for heavy or extended cutting. They overheat and crap out.
This is where there is difficulty in understanding the difference.
This gauge:
Does not stay in place the entire time. It can be removed and reattached. This gauge is used in a different manner than what is used on an alignment rack. Think of it this way: Turn the steering wheel 20 degrees to the LEFT and attach the gauge. After measuring, the gauge is removed, the steering wheel is turned to the right and the gauge is reattached, recentered and the caster is checked again. The gauge doesn't have to stay in place during the steering of the wheel. The wheel can spin 180 degrees and it won't affect the measurements because the gauge is essentially recalibrated each time it is reattached.
Again, if you haven't seen the video or used this tool, it may seem strange to you.
I once had a guy on the job that was one of those guys that loved new tech and stuff like that. I had to measure an opening to build a roof in between two beams. I told him to grab my tape measure and go up on the ladder while I got up on the other. He said..."I have a better way".
He pulled out what looked like a laser pointer and put it against the beam nearest him and aimed it at the beam nearest me. 30 feel, 11 1/8". Then we pulled my tape measure and got 30 foot 11 1/4". The tape had sagged a little in that span (Giving a false longer reading) so I figured that I'd go with his number and it was right. New tech sometimes does work.
Not always...I'm not a fan of using battery powered circular saws for heavy or extended cutting. They overheat and crap out.