View Full Version : Laser edge/center finder
Anyone using this new laser edge/center finder.
Quote from there web page, "Precision edge finding without readjusting for radius of edge finding tool."
But doesn't a laser dot have a diameter that would have to be compensated for???? They make no mension of this on there web site.
I used the e-mail link on there site to send a query, but it came back undelivered.
Looks like a good unit, and reasonably priced.
I need a new one. Using the pointed end of my Starret last week and got it toooooooo tight. Screwed the spring into a knott... Dam AGAIN
02-27-2005, 05:12 PM
Qoute from there site"For the new Home Shop Machinist it will eliminate the frustrations and doubts of learning the century old Indirect Method with the conventional Edge Finders or Wiggler."
Cmon that is probably the simplest thing to learn, seriously it doesnt get much simnpler than a edgefinder. I think some of you guys just like lasers.
02-27-2005, 08:13 PM
Yea I am old school also. I certainly don't need an edgefinder that costs $50.00.
02-27-2005, 08:30 PM
blah, just more crap that needs expensive batteries. my $9 brown and sharpe edgefinder does me fine...
02-27-2005, 09:47 PM
My 50c bearing does me http://bbs.homeshopmachinist.net//biggrin.gif
02-27-2005, 09:52 PM
But - but - but ----
It's LASER Accurate! http://bbs.homeshopmachinist.net//tongue.gif
If I'm going to use an optical method, I'm going to want some magnification:
Yeah, it's 4x the price... but it actually works! http://bbs.homeshopmachinist.net//biggrin.gif
02-27-2005, 10:19 PM
I read the ad. They make no mention of the beam diameter. Besides, how small of a beam could my eyes see? Even with magnification, I doube it will allow any better than 0.005" finding.
02-27-2005, 10:30 PM
Hammerhead, one of those scopes was given to me. I don't use it very often as it is a chalange on a BP to get your eye close enough to see the cross hair. Possiably I could not be using it correctly either.
02-28-2005, 12:40 AM
>>> I don't use it very often as it is a chalange on a BP to get your eye close enough to see the cross hair.
Umm - are you doing this with the quill up or down? I always have to lower the quill somewhat to get enough room. Also, my Shizouka has a Kwick-Switch adapter in the spindle, so I get several extra inches of clearance from the head.
02-28-2005, 11:36 AM
I agree with Paul.
The ad conveniently does not specify accuracy or beam diameter.
To obtain very small beam diameters with a Laser, you need what is called a Pinhole in the Beam path. This and the optics that support it would raise the price considerably.
I must admit, a Laser Edge Finder should make finding really fast and simple, provided, you could manage a Beam Diameter of 0.0005" over a range of a few inches.
02-28-2005, 06:23 PM
I bought one at the visalia show. I think it was 20 or 25. I still need to call the guy. it has TOO much run out for me. I bought it for aligning to center for drilling, not for edge finding and you can see the beam wander if you turn the spindle. I was immediatly scared about the damage I had done to my machine....then I ran the thing in a Vblock and felt better about my machine.
02-28-2005, 08:32 PM
So far I think that the lasers work well on the wood tools if they are properly implemented. i.e. hairline beam. But are pretty useless on metal working machines.
I know a guy that does laser cut wood kits and with a precisely focused beam for the material thickness and height he has a 0.005" kerf. No way this is that accurate.
What's the repeatability with a precision edge finder and some skill? 1 thou, 5 tenths, even less?
02-28-2005, 08:50 PM
Hammer as I remember I did use it with the quill up as I was too lazy to lower the knee and than crank the knee back up. Charlie