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Happy Fox! (First Element o...View Instructable »
Pocket 7 colour laserView Instructable »
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Hi C, Deal extreme do a cheep laser detector, I have yet to try it out.https://www.dx.com/s/Sku%3a433249
Good point Dm, I have used used them in the past with green lasers they reflect very well.
Hi JF, The testing with the water tube was all that I needed to do, it is close enough to a flat line for my purposes. Out of interest I had to swap out the first laser module I tried as the beam came out at quite an angle. I would probably make the laser mount more adjustable if I did it again.As to ongoing calibration I have discovered that my workshop timbers are very very close to horizontal and if I hang this from a roof beam I can see the beam all round and eye up how it looks to a plank line :)
May I suggest you use a good quality thin ply for the chassis, it will keep it nice and stiff. If you make the motor mount and laser hole in one piece then cut them apart you should be able to keep everything in line. see drawing below, I hope you can see how it would work :) I would be interested to see what you do with the idea!
Thanks for the input JGD, I opted for the remote switching for a number of reasons amongst which is it saves the leg work keep returning to it to turn on and off between checking levels, it is quite battery hungry :)Another one that I felt would be useful was for additional mass for damping, you may notice in the video that when the motor starts the unit precesses slightly, I reasoned more weight the quicker it would settle.
Hi, Thanks for the comments, I would say though: 1) Relays can indeed operate from lower voltage, these relays are remote control operated and the remote circuits need between 5v and 8v had I managed to find some that used a lower voltage I would have used them. 2) Sorry but the only situation where what you say is correct is if the level is in the middle of a perfect circle, hang it in the middle of a square room and the line will describe four curved lines..... I have attached a drawing to illustrate the effect. In my hypothetical square room the laser, as drawn, would project a line with the lowest point in the middle of the wall and the highest point in the corners.
I like it! Simple but efective :)
Low cost rotary laser levelView Instructable »
I did this a very long time ago but I seem to remember that the position of laser to mirror is not to critical, I did it by trial and error. I think the laser ended up just front of centre of the fan/mirror assembly.
Long skewers with replaceab...View Instructable »
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