<HTML><FONT FACE=arial,helvetica><FONT COLOR="#8000ff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Steve<BR>
Yes in fact you need to provide a permanent mount at the four corners of your board.<BR>
So far I have not completed mine yet but the way that this should be done is to make two mount's for each laser one for each corner of your table. you will need a target at the opposite end of your table set at the center highth of the beam that will allow you to level each laser and to confirm that the two lasers are adjusted to exactly the same highth, this could be attached to the permanent laser mount opposite the laser or could be located on the center line on each end of your table between the two permanent mounts. The object is to be able to set and zero level both units to the same reference point elevation. and allow you to obtain repeatable adjustments should you move a unit from one end to the other or remove it for storage or to change batteries etc.<BR>
I have taken the pictures but have not downloaded them yet, It may be next week before I get time to do it but when I get it done I will notify you with a post here.<BR>
Buddy </FONT></HTML>