Holy crap :: this is a nice laser.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7601311332
I in no way profit from sale of this item.
owen
Type: Posts; User: owhite
Holy crap :: this is a nice laser.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7601311332
I in no way profit from sale of this item.
owen
that's amazing. Always nice to have a backup machine if the first one breaks. Did you get it on ebay? I didnt see any being sold. If you know of another I could buy let me know.
owen
Romos,
check this out:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7574932810
these look like the power supplies for our lasers.
Man, these things are worth a lot of money.
People,
PROVIDED ITS THE REAL THING, there is a very interesting deal on ebay for a C02 laser.
see:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7572780915
its description is the...
I think there are not a lot of readers on this forum that use lasers at power level that your laser has. I'm told that this is a good book and may answer your questions:
Co2 Laser Cutting
ISBN:...
When you say you want the laser to engrave, it could mean two things.
In one case, you may simply want to set the power of the laser so it burns into the material. In this case the laser will...
Hey people,
A bit off-topic but I recently bought a maxstar 150 TIG welder to weld stuff I cut with my laser system.
Here's a
picture
of small head made of 0.032 inch thick stainless...
how many watts is that thing? when was it made?
These guys:
http://www.parallax-tech.com/faq.htm
http://www.parallax-tech.com/cutting.htm
point out that you can cut cloth with 25 watts
and sandpaper at 100watts (which is just plain...
I'm sure I'm missing something, but why would the focal length be shorter? I would have thought that focal length is the same regardless of beam diameter. Perhaps you'd have to use a different...
oh yeah the other thing I could do if you go ahead with making one is I'll open up my expander and make certain about the orientation of the lenses. You have to know if the plano side or the convex...
Sorry I wasnt able to find the diagram that I once saw on the 'net. To my knowledge there's a couple strategies for making a beam expander. The method I knew about is to have two plano-convex...
Paul,
dont see why not. photons in, photons out, right? :-) In front of my laser I have something called a cut quality enhancer, which is basically a polarizer that's supposed to avoid letting the...
zoltan,
have a look at posts in the CNCzone Laser Cutting Machines forum, and peruse this site:
http://nilno.com/laser_dir/blogger.html
and then feel free to post questions.
owen
Got my first serious burn from the laser today. My hand was pulling out a part while the system was running (might be hard to believe but there are many occasions where you have to do this or quit...
wow. That's faster than my system. You should type up your SOP (standard operational procedure).
However, wouldnt you agree that it would be nice to have an enclosed system which protects the...
Forget the laser (10 watts, pfftt). But buy the unit for the optics.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5604933806
Based on his experiences,
...
well, I can tell you what I think focal length and depth of field means.
Lets call the cross over point where the beam is at its minimum diameter the beam waist. The cross-section of the beam...
I dont claim to know what the industry standard is but I would say you'd shoot for the middle. Think in terms of maximizing the power density of the beam -- smaller beam is always better. The beam...
I dont know for sure, but my intuition is that you should be able to cut 1/8th at lower than full power settings.
This thread:
http://www.cnczone.com/forums/showthread.php?t=8143
discusses...
Hm. I dont know off hand what would produce that (besides a non-creative suggestion like "hey you must have bumped something".)
There's a good chance that formation of the ring does not mean that...
It doesnt sound like it but if you want to get into doing the electronics yourself I'd suggest looking into using AVR programmable chips. These devices let you interpret signals like highs and lows...
not that it'd be much fun to go through the whole process but I wonder if it would work to embed the brass sheet in parafin, and then mill the parafin block.
owen
wow, you guys get to _mill_ things. all I get to do is cut them with a boring old laser. :)
read: I dont have any experience with machining brass.
owen
note: there are bends in the some of the parts. might be an issue depending on how thick material you use.
o.
you gonna make it out of metal or...?
heh. WHADDYWANTFORNUTHIN!?
actually, I screwed up the file save when I did it in rhino.
cnczone didnt let me upload the file because its 1meg so I compressed it.
owen
sorry took me a while to respond I was on vacation -- the size of the thing is about 4 inches long, three inches tall in the crouching position. the material is .032 inches thick stainless steel.
...
progress?
you get the alignment paper?
owen
is the electronics of your system such that you can control the pulse length and power?
owen