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Step 4The Other End
Once the laser is loosely in place, I like to position the focusing lens that sits at the other end of the rail/plank.
Use the same method of mounting the laser, to mount the focusing lens.
Use the polymorph to seat the lens - keep it centred and horizontal!
Now line up the laser so it passes dead centre through the lens, adjusting both laser and focusing lens until the beam goes through the lens and does not diverge in any other direction horizontally or vertically.
Once these two are in line, we're almost there! Just two more modules to install.
Use the same method of mounting the laser, to mount the focusing lens.
Use the polymorph to seat the lens - keep it centred and horizontal!
Now line up the laser so it passes dead centre through the lens, adjusting both laser and focusing lens until the beam goes through the lens and does not diverge in any other direction horizontally or vertically.
Once these two are in line, we're almost there! Just two more modules to install.
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Feb 28, 2009. 12:46 PMBort
says:
where do I got this "focusing lense"
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Jan 25, 2010. 3:41 PMfernxtwo
says:
you can get them from and old slide projector. easy obtainable for 5-10 $
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