The Shop > Tools
Anybody build Dan Gelbart angled laser centre finder?
Arbalist:
A few items I ordered have now arrived. I drilled the new housing I'd made for the 12mm module with a .5mm drill bit but the resultant dot size seemed little different from the earlier one with a .75mm aperture. The 6mm laser module arrived and seems less bright than the 5mw laser pointer I have which is fine. The dot is still oval though and the focus has been glued in place so I can't adjust it without risk of breaking the module. I'm sure it will be fine though if I use a small aperture again. Not sure yet if it will benefit from a ND filter. Overall I'm quite impressed with the 6mm unit, inexpensive and very compact. Time to design a prototype.
Andrew Wildman:
Here is a laser centre finder that I put together. Most parts were 3d printed.
It looks a bit like a laser guided toilet seat for mice but the strange shape is allow it to be used on a number of different machines with different spindle sizes. The centre finder is fixed to the spindle with magnets and is very stable when running, even on the drill where it looks a bit precarious!
Andrew Wildman:
A shot of it in action
sorry about the massive pics, the pics on the last post were a sensible size but for some reason these are much larger :scratch:
philf:
Very nice Andrew. :thumbup:
That's one of the few useful things I've seen made with a 3d printer.
Phil.
PekkaNF:
That looks nice.
What kind of results are you getting with that one?
I attented on one 50th birthday party and next day when I was returning from the trip I went on one "El cheapo" shop and tried to find something usefull for a 3V lithim batery holder. No, they had no cell clips, but there was a pagage of three electric candles and six batteries for about 3€. When I got home I cheed them and what a luck. The bottom part is one itegral unit and and it detaches with two philps screw, the bottom is about 34 mm round "lid" that has a battery holder and switch in one ready made unit. battery size is small, but this offers all the parts for further testing and some spares.
Something like this:
http://m.dhgate.com/product/electric-candle-tart-warmer-flameless-led/210849539.html
Battery tab and switch tab are solder tabs, quick to substitute the "candle led" with laser module. Seems to work.
3D printer could make holder easy.
I tried do dig a chunk of aluminium for the spinng part, but maybe a plastic would do.
I'm procrastinating between two fixed angle lasers, switched alternately or one adjustable angle laser....and two different attachmet method. I don't like the magnets. I have idea about coaxial excentrics or wire spring....
Pekka
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