Ortur Laser Master not engraving

Laser was working fine yesterday. Today the light started flickering like the power was going up and down. Installed firmware and reinstalled GRBL program. Now it turns on and moves and looks full power, but will not even cut paper. This is only 3rd time using. Please need help!

$0=20 $1=50 $2=0 $3=1 $4=0 $5=0 $6=0 $10=1 $11=0.050 $12=0.002 $13=0 $20=1 $21=1 $22=1 $23=7 $24=600.000 $25=3000.000 $26=100 $27=2.000 $30=1000 $31=0 $32=1 $33=250.000 $100=80.000 $101=80.000 $102=80.000 $110=9000.000 $111=9000.000 $112=9000.000 $120=2200.000 $121=1800.000 $122=2500.000 $130=160.000 $131=150.000 $132=1.000 ok

just checked and values are the same, 1000
Added the $$ setting above for viewing

You might have a dead diode then. It happens - I would contact Ortur to see if they can replace it.

wow, that’s super disappointing. I will contact their support. Thank you.

I would also look at the cable going from the Y axis daughter board over to the laser head. Look at the cables and look at the soldered connectors. Could be a broken wire and/or crimp or even a bad solder joint on the connector(s).

Overdriven diodes are fragile. Ortur claim 15W/20W for their diode, where the most powerful diode made is ~7W.

Pushing it way outside it’s spec breaks them.

The driver Ortur use is really basic, too, without much in the way of current protection.

their spec’s of 15W/20W is consumed power not output power. So the 15W is more like 4W and the 20W is more like 5W.


Except it’s not - it’s utterly made up, fake numbers by Chinese sellers who take diode buyers for suckers. And then those same buyers argue that the person taking them for a ride is right, based on zero measurements, science, component spec - because some unscrupulous dude once passed off his lie by saying ‘no, it’s consumption’ without actually offering any proof.

Mostly they aren’t even hitting 7W - lucky if you get a 5W diode.

Run it through a fixed-current power supply at 15-20W and watch it melt. Diodes are incredibly efficient - a 5W diode drawing 15W is just not believable.

Put a laser power probe in front of it when you do it and watch it hit the heady highs of 9W, just before the magic smoke comes out.

The reality is that they overdrive a diode by pulse driving it at 3x it’s normal output in pulses of 50% or less duration, then claim their ‘overall consumption’ bull gratefully, and with a ‘phew’, received by buyers worried they bought a lemon (which they did).

A good-quality 7W diode will smoke those bs Chinese lasers in action, while staying reliable for 50,000 hours. You’ll be lucky to get 1000 hours from a ‘15W’ one

Dude, it’s a toy and that’s what they said. Do I give a crap if its 4.1W 4.3 or 4.7W? No. It’s a toy and it etches at slow speed and takes up little space. You know, because it’s a toy and has ~150x150mm build area. It’s not a CO2 laser and if it lasts a year it’s lasted longer than I expect.

You cared enough to ‘correct’ me.

And it may surprise you, but it’s not all about you.

Sellers lie. Smart buyers get informed.

Gents, I did do a lot of research before I purchased this. I wanted something cheap to play around with, and the reviews for this item were good. I saw multiple “1 year later” reviews. Looks like I just happened to get a bad one, which happens with all electronics. I have been talking to GearBest where I purchased it from and waiting on their response as to a refund or fix.

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@heathen people have had issues with gearbest support and I’ve seen Ortur support post in THESE forums and have contacted them myself for other reasons so IMO your best option is contacting Ortur( ortur@ortur3dprinter.com ). And while I have seen others with various issues, our group of 15 who purchased have only had self inflicted issues( ie incorrect firmware flashing ). The laser is fun when you get it working.

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