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I believed it was a wrong microstep setting in the steppr drive but it is a simple matter of speed.
The same piece cutted at slower speed and less power is quite perfect. I went from 15mm/sec to 4-5...

any co2 laser CAN engrave photos on almost any material (but no metal, you need fibre laser). the software makes the difference.
this machina can engrave photos really easily just as is, with no...

hi Bratan, Some experience with wobbling on my 3d printer, this seems not the case.
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the cut is finely wobbled... it seems a pulsing laser. I don't know... doens't seem a mechanical problem...

back from workshop...
Cutting REALLY makes a lot of smoke. Stinky smoke.
my first configuration worked fine for engraving but cutting is another story... after few seconds of cutting acrylic...

After 2 months of hard but intermittent work on filters/cabinet/ground line,etc, my 50w beast is working like a charm just out of the box.
Now it is time to experiment and it seems I need a lot of...

Here I am, at last.

Yesterday I completed the work: my sh-g350 is ready and working.
I am really happy with the machine, noneed to align anything, mirrors are clean, everything seems working like...

@bratan, about water quantity, I am working on a 28 liters reservoir. you must check the temp of water (and of your ambient). if your water is steady at a good temp, well the quantity is right... btw...

glad to hear you resolved the mistery.

I am thinking about the carbon get compacted by weight and so: what about divide the 6" filter in 3 filter of 2"? could this help to keep the flow steady and...

Did you try to remove the belt and manually turn the threaded rods of the table (z axis) to make the table even?

I am building a filter/scrubber for my sh-g350.
the air vent from the laser is 150mm (about 176cm2), my extractor is a 460m3h unit with 150mm hole.
I will have a 1# 3m filtrete filter, a #2 zeolite...

@miketola: thanks, great idea to check lens focus!

I started the building of my cabinet/filter. worked 6 hours today and this is the result:
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I confess, it is better than I expected until...

@bratan
try to think in inches. Lens on the market are 1.5 or 2or 2.5 or 4 inches focused. So if 5.08cm (lens to stock) doesn't work maybe 2.54×2.5 cm will.
of course testing and testing and...

The little red plastic I found in my accessory case is (I hope I remember it well...) about 4cm long and 0.9 cm high. the distance between the object and the tip of the lens holder should be that....

Distilled water seems the way to go. Algaecide is a good idea. I read in several threads about people using car radiator coolant (hope to write it right) but really dpn't know if it is a good idea or...

Bratan you're right as usual!
I forgot that one. My sh g350 has the network port outside, near the USB ports and the U/D table switch.

@miketola, your pin table is so cool, I am curious. rivets...

great info, the nail plate is so cool but not easy to obtain here in italy...
maybe I will go with the usual honeycomb, a 19mm net, 20 or 30 mm high, I hope that at 20 mm the laser beam is wide...

thanks fixtureman1, great tip!

Uhhmmm.... that mirror doesn't look the way I guess a co2 mirror should.
This is the picture of a brand new mirror, found on the web.
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I just received my 350 but still not able to put it...

ok, the ampmeter is the same mounted on the cheap dc-k40 laser and it is easy to found.
the question is: how to set the maximum current on the psu? is there a potentiometer to regulate the current...

Thanks, you are really kind and your info are valuable for all the sh-350 owners and future owners.
WHen my setup will be ready I will try the calibration first.

About the current of the laser,...

WOrked a bit on the cabinet/filter/cooler unit.
I hope to realize a piece of furniture like this, to put the sg350g on it.
The multi stage filter would be made out of:
1 prefilter (filtrete or...

Just arrived from my shop.
I still can't use the laser, no fume extraction, no ground safety. But I switched on the main control and, surprise, the LCD is the graphic one, with layer control,...

Well, few hours ago my brand new SH-350 has entered my shop.
Ordered from ebay seller (ask me in pm if you want the name), the machine arrived in a large (really large) wooden crate, directly from...