It looks like the one corner of your table is higher or lower than the rest. I would adjust the mirror to hit the low corner and shim the 3rd one to match the 4thone
after a few months after i've posted here about my gweike problem, i'm comming back to show a video of my stress:
any help will be apreciated...
i've replaced the tube a few days back, and still my dots don't overide
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It looks like the one corner of your table is higher or lower than the rest. I would adjust the mirror to hit the low corner and shim the 3rd one to match the 4thone
Go to rabbit laser USA and read the tutorial on aligning the laser mirrors, follow his method step by step and I think you'll be ok
About 10 minutes in the alignment starts
Leave the left mirror where it is and shim the up right corner Half the distance that is off and adjust the left mirror to hit the center. I had to do this on my laser
If it truly isn't an alignment problem then perhaps fixtureman above has your solution. Try say starting with the left hand "y" rail and adjust it dead n-ts level and the do the same for the other 3 rails. You won't get anywhere if the rails are not all in the same plane.
my bubble say it's on the same plane, but i think it's a small diference... how can i check the rails?
If the rails are on the same plane then it's mirrors.
I just looked again at the video and it doesn't look like it is hitting the center of your final mirror. Remember that it is only off by half of what is showing if it needs to be shimmed
yes, the beam is hitting above the center of the last mirror... that is the closest point i can get for the allignament... if i lower the dot, to the center, then, the distance of the dots from up left to the low right is muuuch bigger... i can do a video about that, too...
after a few hours of measurments, i can say my rails are on the same plane, and none of them is lower or higher in any part of the table... so far, so good
I'll try to find time today to show where we are talking about shimming. I need to take my machine apart and make pictures of installing my latest z table conversion kit anyway for ebay so that's the same area. I'm still doing family business today so I'm not sure I'll get to it but I'll try. Something in the front right corner (I hope I've got the correct corner) holds the rail to the case. What fixtureman is saying is change that mounting to get the rail a little (washer under the rail, slot the screw hole if it's attached on the side, etc. The rail has to go"up" slightly where the beam hits "low".
the beam is going down from left up to right down...... it's up at the following corners: left up and down, as you look at the machine, and at right up corner... then, as you go to the right down, next to the control pannel, the place farrest from the tube exit, the beam is going down...
i never read anything about how can the rails be fixed and never seen a video about it...
and i have no one to call to help me in the process, so it will be anything but not fun
Did you check the alignment of the laser housing itself (just a thought). For me it looks like the corner where the controls are is higher then the rest and you can't adjust it with the normal alignment process. This will force the laser dot to be lower on this site as on other positions. If you got the laser new that can be a result of improper handling during the shipping. If the laser was dropped on the corner of the controls it might be minor without visible damage but can be the case that the mounting locations of the rails are slightly off and not straight at all. You wrote you checked it with a bubble level but this might be not sufficient and accurate enough. If you have the chance to check it with a digital level might show you a slide difference. This is just another point to consider and to check.
Raising the legs will not work what you have to do is unbolt the track an put a washer or shim between the frame and track.look at the pic and see the red circle that I drew to see where I would shim it.
duplicate post... delete .. delete..