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Local and english speaking support is always a big plus, especially when troubleshooting.
I'm in AU but this still allpies for all parts of the world.
But if you offer a "local" support and...

A chinese laser tube can fail or work at reduced power before it reaches you already.
If you need higher power settings than before it is a good indication that your tube is going off.

The main issues of monting the tube directly is weight.
If you consider the water cooling you can get over the 2kg mark quite easy - this would require changes or at least tweaking of settings...

The results do not look too bad at all!
I only use an old fridge compressor for the air assist, they are quite silent and if it ever fails due to overheating a replacement is only 10 bucks at the...

Or my cheap china K40 clone with a 50$ Arduino pack as the controller ;)
Sorry but sometimes I simply fail to see the point why I should invest in a machine that has at least 4 digits for the price...

Or with any other laser on the market ;)

I agree the spam produced by some user here is gettng out of control....

Ok, let's start again from scratch if you don't mind:
If you move the axis in the middle position and start the machine - do the move? If they do please shut down before jamming into the final...

You need a matching pair for the power supply and tube.
If your power supply is designed for only 50W tubes then there is a good chance that here is your problem.
Since you stated you upgraded both...

I don't know if you can adjust the motor current on the controller in any easy way but if so I would try to increase it for the y-axis.
If you can move it free by hand with little resistance then it...

Sadly stalling and useless explanations are the norm for many chinese sellers.
Language barriers are one thing but most have the attitude of taking you money and then to ignore all problems.
Had it...

Keep in mind that Ebay recently change the return shipping policies.
If Ebay agrees that your unit is faulty then they either offer a shipping discount for you or make the seller organise the...

Did it move correctly before?
The cables on the limit switches are fixed with heat shrink, check if they are really soldered on and working (multimeter).
Mine gave up after a few days and I had to...

Just because it works sometimes does not make the controller any better.
There are noption to tweak, nothinh to check and that is the problem - you don't even get error messages that would help you....

The controllers ued in the K40's are just crap.
Without the possibility to use base64 encoding image engravings will need massive amounts of Gcode and especially at higher speeds the controller...

Where is the advise or help here?
All I can see is blunt advertising - not the nicest way of luring customers in....

In fact I can not find a single posting from you that is not an advertisement...

Well that is basically the same I do on wood but the problem I see is the focal lenght.
I am quite sure that for this to work on arcylic you will need a quite short focal lenght.
Don't have any...

Same combo here just different firmware and different mods to the plugin to allow for photo engravings.
The Mega is well capable of driving the machine and if I have to then I do engravings with...

Milling?
I don't think so, cutting and engraving yes.
For "milling" you would need to do an engraving at the right speed and power to remove the material.
Due to the nature of the optics and...

Well for me it was planned already before I bought the machine as all reviews on these controllers and software turned out to be bad at best.
Does not matter if it runs on a fake Corel software or...

I though the forum language was english...
Don't speak italian but I replaced my controller with an Arduino Mega and do photo engravings and vector jobs now with no problems and without crappy...

Where is the advise? I only see advertising...

Is it really that hard to understand someone is asking for advise / experience?
I Texano would be unable to find your website he would not have asked....
What is it with you chinese companies that...

Why is it that basically every thread is sooner or later hijacked to advertise chinese machines?

You won't get a K40 without dongle, crappy controller and nightmare software.
Replace the controller after a function and alignment test and that's about it.
And as said endless times in all forums...

Photo engraving in good quality is already a problem with a CO2 laser due to the energy density, especially on glass.
Keep in mind there is no sweet spot between darkening and burning here, only...

I replaced the controller with an Arduino Mega and Ramps board...

Not all is free and not is good but there is something for everything.
Free-Vector

As far as I can tell they are trying to satisfy the deliveries as soon as possible.
But as you said, the trust in the product is already low due to the delays and ongoing problems.
Prices for 32bit...

I can't really agree with that.
Sure the hardware and assembly can happen in asia but there real problem is the software.
If you check the extra long feature list you have to wonder how to even...