Which 10W Diode Laser?

Long story short, I purchased one of the early LM2 lasers use with a LU1_3 laser, I believe a 3W?. After some troubleshooting I believe the circuit board on the laser module need replacing. Not sure if I should just upgrade to a 10W and keep the whole unit, or replace with a similar laser for cheap, sell the whole thing and then buy a new 10W system and be done with it.

If I buy a new 10W system I was looking at maybe the Comgrow or similar. Ideally would like to keep it under $400 with air assist. Any feedback on the Comgrow or any others I should consider?

Opinions on if I should just add a 10W laser and keep what I have, or just start over?

Its a 4.5W module ish

Biased opinion here as i represent AlgoLaser (disclaimer)
But if you don’t necessarily need a stronger frame
AlgoLaser DIY Kit 10W is roughly under 400$ currently
DIY Kit 10W

I think the question is how cheaper could you get the LU2-10 10W module from ortur. Might be better just to upgrade the 10W and use the frame.

Sinismall has the 10W @ 270$ currently
SinisMall Link

So in a way is a question of do you jut want to upgrade the power, or you want to also upgrade the controller and move to 24v ecosystem.

If you happy with what you have but need more “powa” 10W upgrade is the most cost effective way to go

The Sculpfun S30 Pro 10w with Air Assist is about $500 on Amazon (US) now.
DISCLAIMER: I do not get paid by Sculpfun, but I am a happy customer. They are also rated the smallest dot size and depth of field in the diode laser industry. Focus at 50mm from the laser body. I smoked (not on purpose!) my spoilboard at 100mm (4") and 20% power when first checking it out.

Here is my initial question…

Gil, I had a quick look at the link you provided. It would appear that with “certain” adjustments I should be able to install this 10W module (using their OUC Universal adapter board and power supply) onto my Ortur LM2 Pro (it’s about three years old so I think they call it an S1). Do you think it’s doable? I have one of Tim Rothman’s B-N-B 3 controllers so all I really want is a slightly more powerful laser on it.

perfectly doable
The OUC is suposed to be a “transposer” to make the module universally compatible

make sure your S1 is on 1.78 firmware

cabling is a bit messy but shouldnt be a deal breaker

if you have rothman you might even be able to connect direct to bard, depending on version you got

As I am not using the OEM controller anymore, the 1.78 firmware is kind of moot. I spoke with Tim, and he cautioned that the JST connector is rated at 3 amps so I will probably drive it with the provided 24V power supply. It looks like that’s the intent from looking at the PDF installation manual.

can you take a picture of your board
i know Tim built one specifically to handle 10 and 20Ws with the round connector and the BH6 pin. but unsure what you have

worse case, OUC board will always give you the safety options, but wiring gets messy

This is the first board he sent (I had a problem with the power regulator (next to the fuse) so I removed the ESP32 during troubleshooting.

This is the one that is currently installed and it runs like a champ

I made a cover so I would have something to mount the fan to.

in this case is just simpler to use OUC board and add the 2nd power adapter.

i would imagine you already worked out some wiring management

The entry point of the drag chain is just out of the picture, so I’ll put it next to the BNB3. I’m using a 6-amp power brick to run the current system; I may be able to use that to supply power to the new module as well. I’ll need to see how much current the 5.5W (plus everything else) is drawing.

Rule of thumb for 10W is
24v 2amp for motherboard+frame
24v 2amp extra for 10W

Total available amps 4amps.
of course if you buy the 10W it comes already with the 2nd power adapter

Very true. Given the numbers you’ve provided there should be enough overhead on the 6-amp brick to run everything with one supply (I already have a “Y” cable). If not, as you said, second supply. I’m just trying to avoid having to plug in more stuff.

6ams is more than enough
However if you plug 6amps on the board . then all the power will have to go through wires

the idea of OUC is you split it. so you would have to have both power adapters connected regardless

Understood. My plan was to split the output of the power supply with a “Y” power cable. One side going to the BNB3 and the other to the OUC.

oh i see! This should work yes

I didn’t follow the full discussion, but here are some additional numbers: the Sculpfun S9 (5W optical output) draws 36W maximum if the laser is at 100% and both motors full speed. The S30 Pro Max (20W) was around 90W (laser at 100%, both motors at full speed).

I realized after that typing that comment it lacked some context. It’s one of those things where you know what you mean in your head, but it doesn’t get conveyed into what you type. What I was trying to explain is that I want to get a baseline of how much current my 5.5W OLM2 Pro draws when running flat out, to give me an idea of how much overhead I have left on the 6A power brick I’m using, before I install the 10W laser. The OLM2 Pro came with a 2A supply, and I suspect that swapping the 5.5W out with a 10W laser module shouldn’t exceed what the 6A supply can comfortably provide. I was going to use a “Y” cable to split the power between the BNB3 controller and the laser module. This is the 10W laser I ended up buying.

https://www.aliexpress.us/item/3256805973586365.html

I know that it comes with its own supply, I’m just trying to avoid having all these power bricks plugged in all over the place. If I can get it done with one, then that’s what I’d like to do. Have I succeeded in making it more confusing? :laughing:

You need one of these.
https://www.harborfreight.com/kill-a-watt-electric-monitor-93519.html

Not really, it was confusing as it could get. :interrobang:

Seriously, you might be able to replace the existing power brick with the new one. Even if it means cutting and splicing wires to get the connectors to match, that is what I would do.