I Burn For You.

[BigJon16]

Thats amesome! When will you be taking orders?

[CatholicCid]

Razzle-dazzle.

Will try to think up some orders.

[arfink]

[quote name='BigJon16' timestamp='1342387487' post='2455894']
Thats amesome! When will you be taking orders?
[/quote]

I have no idea. Probably some time after I actually order some colored acrylic in groovy colors.

[xTrishaxLynnx]

[quote name='arfink' timestamp='1342380273' post='2455863']
oh, I definitely could, just every so slightly less. This piece is already very detailed. It's only 2 inches wide, maybe 3 inches tall.
[/quote]

Oh, it looked much bigger than that. I guess I was thinking the cloth it was on was the size of a regular wash cloth or something. Woops!

It's great you found a solution.

[cmotherofpirl]

I want celtic stuff for my walls Wood, not plastic.

[brianthephysicist]

Arfink, how'd you get to be so razzle dazzle?

[arfink]

[quote name='brianthephysicist' timestamp='1342453255' post='2456065']
Arfink, how'd you get to be so razzle dazzle?
[/quote]

Well, if having an expensive tool makes me razzle dazzle, then I guess I got razzle dazzle by saving up my money, and then spending it?

[Innocent]

[quote name='arfink' timestamp='1342360149' post='2455800']
Well, if I read correctly, there is some kind of beefy STMicro in there, probably 16 bit. An FTDI chip controls the USB buffer, and then there are just some simple mosfet H bridge looking things for driving the motors. The power supply for the laser tube itself is considerably more complex, but that portion is all analog, which makes it even harder for me to figure out.
[/quote]


16 bit, eh? Never used one of those. Are those stepper motors that are being driven by the H-Bridges?

Is the structure that moves the LASER around built on the same principle as an XY-plotter?

[arfink]

[quote name='Innocent' timestamp='1342487844' post='2456239']


16 bit, eh? Never used one of those. Are those stepper motors that are being driven by the H-Bridges?

Is the structure that moves the LASER around built on the same principle as an XY-plotter?
[/quote]

I believe they are steppers. And I said it looked like an h-bridge, just because of the components being used, but I am not 100% sure since I don't really want to take the whole control board out and map it.

As for the movement, it's what's commonly called a gantry style laser cutter, or more accurately, a "flying mirror" style.

The laser tube itself is quite large and needs a water cooling jacket, so it cannot be moved by the machine. Instead the beam is fed through a series of 3 mirrors and finally into the focusing lens before it hits its target. The first mirror is stationary and aims the beam towards a second mirror attached to the horizontal gantry arm, which in turn bounces the beam to a third mirror attached to the head, which reflects the beam downwards and through the final lens.

[Innocent]

[quote name='arfink' timestamp='1342488222' post='2456242']
As for the movement, it's what's commonly called a gantry style laser cutter, or more accurately, a "flying mirror" style.

The laser tube itself is quite large and needs a water cooling jacket, so it cannot be moved by the machine. Instead the beam is fed through a series of 3 mirrors and finally into the focusing lens before it hits its target. The first mirror is stationary and aims the beam towards a second mirror attached to the horizontal gantry arm, which in turn bounces the beam to a third mirror attached to the head, which reflects the beam downwards and through the final lens.
[/quote]

This sounds very interesting. I've never seen an actual gantry system in operation. Is there any way you could record a video of the working of this mechanism?

[arfink]

I suppose so. I was planning on making some of those keychains for dUSt today, so I'll have ample opportunity.

[arfink]

It is time.

[img]https://lh6.googleusercontent.com/-M8AZ5D1zxGI/UAb2I0HAVpI/AAAAAAAACQ8/3JEzQz7iPA4/s800/phatchains.png[/img]