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Many duct tapes are PVC tape with a cloth backing and rubber-based glue. PVC should not be cut, and is on the Forbidden list.
On the other hand, there are cloth tapes 'gaffer' and other names which are made from natural fibers. Those are fine.
Yes, I was wondering about that as well. What are those stick-on floor tiles in the mezanine made of, and can we etch or cut them?
Any word on brushed aluminum or other thumb drive materials? ;)
This isnt the same thing, but I called Amerimax (they make the cheap
aluminum flashing available at Lowes and Home Depot ) to ask what the
clear coating was, and was told it is "wax based". it might smoke some
but I doubt think it would pose a fire or fume risk.. My previous
experience with this stuff was by scratching really fine lines on it
with a 12-penny nail using my Cricut before etching with the metal
salt solution. The problem was, the lines were just too fine to be
very useful (like thin hair), and also, the coating was light enough
that there were always a few fine scratches from handling.
Id probably either live with it and call it artistic inherent to the
material ;) Or maybe spray another thin coat of regular clear or other
color spray paint before lasering...
On Thu, Sep 8, 2011 at 12:14 PM, Eric Adams <ada...@gmail.com> wrote:
>>>>>> The peel& stick tiles are PVC, but the pergo / laminate flooring is
Rit is a standard wool dye, which can be purchased at any grocery
store. This method is both inexpensive and offers a wide variety of
colors. The drawbacks are that Rit, an organic dye, is not light fast,
and will fade in direct sunlight.
With Rit, simply prepare a bath of about 50ml/litre at about 70 degrees
celsius. One hour minimum is required, with the preferable duration
matching the anodization time.
Black MLW can be purchased from Sandoz Chemical (my contact was Ron
Rupple (214) 423-1674, the sales rep for texas. The company is based at
(704) 331-7000.) The price is between $15/lb and $60/lb (don't have an
exact quote, but this is the range of prices for all of their black
dyes). Small test quantities can be obtained.
Black MLW is favorable because it is a) light fast in the visible
(being inorganic), and b) a rather flat black. It's drawbacks are
expense (a minimum order is 5 lbs, which is an awful lot of dye), and
requires special working procedures (the dust is hazardous to the
Black MLW is, however, simpler, and more convenient, to use. The
temperature should be between 51 and 60 degrees C. The duration being
5-10 minutes depending on quality of blackness desired. The
concentration (keep this in mind before ordering 5+ pounds) is 10
Hope that helps.
I was showing off my laser cut wooden I Ching hexagonal tiles (I'll bring them to an open house sometime soon) to some artist friends and they thought of some other materials that they'd like to laser etch/cut (mainly etch) that haven't come up before on the list: bone, feather, leaves, and stacks of paper (instead of individual sheets, like for instance cutting a secret compartment in a book). Please let me know if these would work so that I can pass that information along to future potential members.
There were also some less serious suggestions but I thought I'd ask anyway because they'll probably come up in conversation again: meat, bread, ice. I figured that ice would be possible but not allowed because of dripping water, but that maybe dry ice would be okay.
Feather : Cuts beautifully, smells awful You can even cut shapes into
Leaves: Dry leaves are a bit dangerous. Low, low, low power. Wet
leaves have different issues.
Paper: Stacks should be cut individually then assembled.
This laser is a CO2 laser, that produces intense energy in the
infrared spectrum. When it hits ice, it doesn't just make steam...
where the beam hits, the water instantaneously decomposes into
hydrogen and oxygen (HHO) and just as rapidly -burns- itself back into
water after being ignited by the slightly unfocused laser beam above
the cutting range.
(this is the same thing that happens to wood, it decomposes the wood
the same way a gassifier would)
So, no ice/water. As Jerry said "Just no."