The Shop > Tools
Anybody build Dan Gelbart angled laser centre finder?
PekkaNF:
Dueling banjos?
My intention is to test this concept very close to original DG:s idea:
* You can have drill or whatever on chuck and clamp this over the arbor end. No need to remove drill etc.
* Focusable beam, nominally 5mW red laser. 1mW would be safer, but let's see what kind of results this will do
I have plain spindle bearings on my mill and I think that rotating it will be more accurate than "static" in terms of location of the hole. I don't have DRO, but I could mark string of centres and use this laserfinder to find those marks and then centredrill them. Any suggestions? Make few mm deep holes and measure from edge to edge with sigital caliber, or pins and use micrometer?
I have seen on those links 3 "thou" and other numbers.
Pekka
Arbalist:
How is DG's unit held on, Magnets?
I believe one user reduced laser intensity by replacing one of the four button cells with a brass spacer.
BaronJ:
Hi Guys,
I just got one of these :doh: 5mw red laser. Its absolutely useless !
Its far too bright. The spot is rectangular in shape. At the distances it needs to be used at a 2.5 X 5 mm spot is far too big.
So this is one to be avoided.
I did try to measure the spot size of mine, and its about 2 mm in diameter, not quite round, it has a small flat on one side. I think that is why I get a tiny black dot in the centre.
I'm still looking for something like the original one that I got from Aldi.
HTH
Oops forgot to add the picture.
PekkaNF:
--- Quote from: Arbalist on April 10, 2015, 04:41:22 PM ---How is DG's unit held on, Magnets?
I believe one user reduced laser intensity by replacing one of the four button cells with a brass spacer.
--- End quote ---
The one drawing I saw had flat springs on side. Balanced and snug fit. I haven't tried this laser yet. Have to go help my brother - a little logging to do. Literally. Some spruce.
Pekka
Fergus OMore:
Of course 'Baron' is right. This malarkey( it is) is now age old and has been flogged and flogged. So far, none of these so called 'miracle' modifications from Pound -stores or everythings a buck has been able concentrate what is essentially a toy or at best , a pointer on a children's blackboard.
A million years ago, I used a professional laser alignment kit in motor vehicle re-alignment- but it didn't come from a 'a dime a dozen store'
We have to do better-or buy a wallet spanner or-Give up.
Perhaps, I am being rude- but HONEST
Norman
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