I just picked up my first heater type fog
machine at Hamfest. Got a great deal on it
It was new unopened, but had been sitting
for some time and there is corrosion in the
pump and strainer. I was able to get it
working, so am happy to report that I can
now take beamshot req's. :o
There are a few firsts in this build, so I
decided to name it after the Inspiraton,
the fundamental particle of inspiration,
hoping that it will inspire others to do
some similar builds. :p (Yeah, I know it.)
The diode selected for the build was the
NiCd don't like to sit around. It is
recommended to cycle them at least once a
month. Otherwise crystals can form inside
and they will go bad. They are still used
in some tools and other thigs. NiMH are
slightly better about crystal formation,
but do not deliver the current or the
Free for cost of shipping.
A few people were saying they needed an
oscilloscope. This is my old scope from
college days. As you can see, one of the
knobs on the front is broken. The knob is
in the bag with the probe. As you cannot
see, the triggering is unstable. I used to
whack the side to...
Some basic design goals of the project:
Drives case neutral and isolated diodes
Ultra low dropout, <400mV
20mA - 100mA Operation with zero overshoot
2 - 10V Operation
Bottom side free of components for optimal heatsinking
Driver fits inside an AixiZ...
Perfect colors, captured with one ultra-thin lens -- ScienceDaily
The Harvard School of Engineering and
Applied Sciences has made a breakthrough in
the science of ultrathin lenses. While it
may be a while before we will be using this
type of lens to focus lasers, this will see
Does anyone have an idea of what the line
count is on these? I think the number may
be a serial and not the actual part number.
It's mostly rubbed off and nearly
unreadable. There is also an arrow to
indicate something. Is it maybe something
to do with the blaze? Here is a link to
I am putting up for sale a CNI 473nm TEC
crystal housing with mirror and Neodymium
crystal. Along with it goes an LBO crystal
to go inside. I'm feeling too apathetic to
get it working right now and want someone
to have it who will give it the attention
it needs. I was going to make a hermetic...
A group of researchers at Rochester
University led by Chunlei Guo has developed
a laser etching technique to carve
superhydrophobic surfaces. Water has such
a high contact angle with the special new
pattern that it bounces like a ball and
I just had a conversation with the
mysterious proprietor of LasersWiki, who
shall remain nameless, and it's going to be
down for a while. It will probably be
coming back online at some future time,
though, and a backup was made. The backup
does not include the user accounts, which
is no big...
This is the beginnings of a Liquid Sky
The original laser diode, driver, and
lenses have been removed. The driver IC is
an apparently undocumented custom ASIC and
the diode is nearly useless (low power
Ardiuno Uno 2kHz - 1MHz square wave pulse
generator for clock...
2 Collimating Lens Focusing Lens 7mm for Laser Diodes | eBay
The lenses arrived damaged with
fingerprints. After a bit of
correspondence, the seller eventually gave
a refund. The moral is to be careful who
you buy optics from. Ask some questions
before pulling the trigger.
Does anyone have a some old Blu-Ray™
sleds? I wrecked a lens the other day
trying to clean it and found out that the
24mm FL servo optic in Blu-Ray sleds is
almost perfect. It's coated and about the
right diameter, but I am fresh out of
Blu-Ray sleds with pristine optics.
Here again, I think we have another winner.
High Power 301 405nm Blue Light Zoomable Laser Pen Pointer Lazer Beam - 1 x 18650-7.13 and Free Shipping| GearBest.com
USE COUPON CODE...
Back in July, I was approached by a member
here with a custom build request. The
requirement was to have a dot, or as close
to a dot as can be reasonably achieved,
floating unsupported in free space for some
type of art installation.
As you might imagine, we quickly discovered
that the main...