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I've played around with the settings - and are still continuing to do so. I've also played with the focal lengths and worked out what works best. It seems with the lens I put in a difference of...

Very valid point and can make a big difference[/QUOTE]

Actually I had to replace the water flow sensor recently and couldn't find one that was an exact match and lets the water through at a...

Thanks for your input guys, I'll retry the focal length and play with the power/speed of the cut. I wonder if the new lens I put in has anything to do with it. I noticed the one I took out had a...

Hi Keith, yep they align well, although not in the exact center of the mirror, but the beam hits the same spot on each of the mirrors no matter where on the bed the head is moved to. When I check...

So the ramp test tells me I was good with my focal length, working out to 5cm from the lens (although I'm measuring to a flat point on the head at 4.3cm because I can't measure exactly to the lens...

Walt, here are some pics:

From the front - this is typical of what we cut out of 1.8mm chipboard, scrapbooking/paperart stuff.

300343

From the back, rotated the way it's cutting on the bed. ...

Hi Dave,

would 1.8mm chipboard be ok? If so here is a pic.

300341

Hi all,

I've had my second hand JSM6540 Chinese laser cutter for about a year now, and this week it's decided to do something weird. It doesn't cut properly on lines or curves that are on the...

Thanks Dave(s) and Mike,

I'll hunt a new Water Flow Detection Sensor down! :)

Hi all,

I'm embarrassed to say I don't know what this item is, I just know I need a new one as my water chiller on my chinese laser cutter alarms out all the time with it connected. Tomorrow I...