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<div class="moz-cite-prefix">Thanks David,<br>
<br>
Thanks for your observations.<br>
<br>
For working with Perspex, 10um (deep IR) is preferred, since the
material is opaque at this wavelength,<br>
<br>
Regards, Mark<br>
<br>
On 19/06/2017 9:54 AM, David I Baird wrote:<br>
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<div dir="ltr">Only a passing comments as I only have laser burner
(450nm, 2.5W) experience.
<div><br>
</div>
<div>When it comes to burning into MDF v <u>Clear</u> perspex
there is a major difference in the power you need to provide
(or speed at which you run). Clear lets all the laser light
straight through to your underlying surface. In fact the only
method I have found that works is to use the wrapper of the
perspex or a piece of paper over the material to even get a
burn and it is not nearly as tidy as MDF or other materials.</div>
<div><br>
</div>
<div>Also I have found a huge variability in the supplied
software used to run my burner. There is likely to be an
additional cost to get something half decent to do what you
actually want off the bat. I used two pieces of software; one
to create paths and the other to do the driving.<br>
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<div>David</div>
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<div class="gmail_quote">On Sun, Jun 18, 2017 at 5:57 PM, Mark
Atherton <span dir="ltr"><<a
href="mailto:markaren1@xtra.co.nz" target="_blank"
moz-do-not-send="true">markaren1@xtra.co.nz</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi All,<br>
<br>
Has anyone bought a laser cutter in the last three years ?<br>
<br>
A couple of people from this group are toying with the idea
of buying one capable of cutting 4.5mm Perspex, or MDF;
hopefully a desktop unit.<br>
<br>
Experiences, good and band, manufacturers, cost, general
observations appreciated.<br>
<br>
Thanks, Mark<br>
<br>
<br>
<br>
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