Recent content by 80cj

i am not looking to just throw money away, but given that my house is at stake, i'm not opposed to spending more than $3 on a laser. how much would i have to spend to get ~1/8" dot? will one of the handheld laser pointers with an adjustable focus get me there? isn't that what i would be trying...

i've got tripods. (i play with photography too) but the downside of a ball head is that it can move too easily. this is a longterm project, so it will be mounted outsid ein the elements for several months, so i really want/need a rigid mount. but i agree that for most applications, that would be...

10 posts!  now i can post pics! (i think) SuicideKing, the setup that i have is very much like what you showed, except a bit more crude looking.  although that is a good idea if i need mine to be more easily aimed.  mine is the same concept except that instead of 3 bolts there is just one and i...

fluff post

thanks, i just checked again and they do have them now, (were sold out last night) so i ordered some. the mounting problem is really with how hold the laser housing securely. not only does it need to be robust, but it needs to LOOK robust (if this goes to court). i have cemented 4x4's in the...

ok, so i didnt tell you the entire story.... the target isnt really on the wall of the house, it is up under the overhang of the roof and the lasers are on the ground aiming up. this way i can measure movement in both direction as well as twisting with just 2 lasers. but it also means that i...

the focus issue that you mentioned should not be a problem b/c the the target is only moving perpendicular to the beam. thanks shawn

ok. 2nd attempt. (i did try the back button, but message was gone.) so here is a short version of a long story. i am in a long battle with insurance b/c my house is moving from high winds. (like i said long story). currently i have lasers mounted outside in the yard, that are aimed at a simple...

grrrr. i wrote a long explanation (with pics!) to try to better explain this all, but when i tried to submit it, it was rejected b/c i cant post links yet, and i lost all that i wrote..... so i will try again when i get time. shawn

are there any write-ups on using the radio shack microscope? i am struggling with the housing to hold everything. is will be outside and exposed wind, etc so it needs to be pretty robust. just out of curiousity, what does a lab style laser cost? (ball park?) thanks again for taking the time to...

thanks for all the replies. let me try to clarify my questions. i need a very small (~ 1/8" or smaller) dot at ~ 50'. how can do this? 1) can i buy a laser pointer that will have a ~1/8" dot (@ 50') right out of the box (ie w/o making modifications to it)? 2) will i have to assemble...

thanks for the replies. i have tried the pinhole approach, but the loss of beam energy is too great. i have tried using multiple lenses, but there are just too many parts to keep align reliably w/o significant effort to fabricate holders. (i'm figuring that it is already done somewhere and it...

i'm brand new to laser pointers and have gotten into them as a result of another project i am working on. i am using simple laser pointers to mark a spot so i can visually see movement of the target (on video). i am trying to get a smaller dot at ~ 50'. the ones that i am using are from a 'laser...