Checking Kendrick laser's collimation

I just received a Kendrick 2" laser collimator and made a make shift V-block to check it's collimation. As I spin the laser collimator 360 degrees in the V-block, the laser dot moves up and down about 3/4" at a distance of 15 feet.
I am wondering how accurate the collimation of the laser should be at this distance and if the amount of movement I measured is enough to affect the collimation of the telescopes I will use it in (14" f4.7 Tscope). Thanks!

Not good. At 15 feet, the dot (or pattern) should remain in the same place. I'd even go for a farther distance, and play around with the collimation screws until it stays put.

Hugh Bartlett

I have an article that includes the Kendrick 2" Laser that explains the collimation.
http://www.astromart.com/articles/article.asp?article_id=96
It shows where the collimation screws are located.
It is not so intuitive, so move a screw a small amount and check the result. Only move one screw at a time while collimating. I also include a printable target for the wall that helps to track the movement and allows you to make a mark while tracing the movement.
Hope this helps.