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Reiign

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I just received my m140 module off DTR. Im still awaiting my host and batteries to arrive. I am impatient and incredibly curious to see the beast work. So i was wondering if it where possible to power to aa's or aaa's and what the amount would be? it has the 1.8a x-drive

Thanks :D
 





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It is, but you would need a lot of them and
they wouldn't last long. It probably won't
run at full power, either. If it is an
X-Drive, then probably at least 4 in
series. An X-Boost, I wouldn't try running
off AA. A single 18500 or 18650 would be
the absolute minimum.
 

3Pig

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You said it was a buck in some other thread, I'd say 4-5 aaa's aa's. Don't leave it on too long either cos lasers don't like heat. Also be really careful of where its pointing, one reflection off a glossy wall and your vision is toast.
 
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Please don't run it without the heatsink. Wait for the host to come in otherwise you will ruin your laser.
Lack of patience is not good for this hobby. You must learn some or pay the consequences :(
 
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Reiign

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Please don't run it without the heatsink. Wait for the host to come in otherwise you will ruin your laser.
Lack of patience is not good for this hobby. You must learn some or pay the consequences :(

Would be run for a max 5 seconds if that.
 

Reiign

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I used to be an apprentice tattooist, I have my power supply from that and reading up on it and seeing some of the power supplies they are they are variable power supplies. So from seeing what others have used to power modules i think this would be ok?

Power supply
 

USAbro

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6 years ago I got a dvd burner and powered it up with no knowledge whatsoever, I used 8 AA batteries, 12 volts and the diode didn't last more than, probably 30 seconds.

Edit: I used a radioshack type battery holder at the time. I just direct drove it with no heat sink.
 
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3Pig

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That's an awesome looking supply, think it should work, just don't go past 8.4v, so maybe stick it around 8v. Don't know what you should do with the current setting :/ could just set it to 1.5a and hope for the best. Think that would work since the driver handles current. Never tried something quite like this so if you break it don't blame me :p
 

Reiign

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Tested it at 7.4v and its just over 1a Works flawlessly i ran an extension cord outside and wholy feck that beam! Cant wait to get my ophir head to test it out! Its an awesome setup because you have a foot pedal to push it on and off XD it isnt heat sinked but im running it for no more than 5 seconds at a time and its not getting warm ( i decided to see how hot i could get an ebay pen. I couldnt touch it lol )
 
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That is fine. The X-Drives are good to
16V. Just hold onto the module at all
times and shut it off immediately when it
starts getting warm.
 

Reiign

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That is fine. The X-Drives are good to
16V. Just hold onto the module at all
times and shut it off immediately when it
starts getting warm.

Thats exactly what im doing :p im not even letting it get hot half the time and its off for a bit. I have run it at 8v but dont want to over power it as it could burn the diode out right? I can power it at 7.5v for 20 seconds and it doesnt get really hot at all so not sure if im under powering it or not.
 
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No the driver makes sure the current
through the diode is always the same. It
may actually run cooler at higher voltages,
at least to a point. Like I said, the
X-Drive is good up to 16V.

Don't let it get hot. When it's just a
little warm, that is already enough as it's
already slightly overdriven.
 
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Reiign

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Thanks heaps For the info. DTR said to run it at 9v id be a little scared running it higher as 16 v is a lot i thought for a module. So basically i could hook it up to a 12v car battery? (not that i want to just curious)
 

Reiign

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Can i drill a hole in a pc heatsink to insert it in there? i want to make this a proper lab setup with a heatsink to test diodes power with a lpm etc Kind of like the one DTR has in some of his pics when testing diodes
 

3Pig

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You could just drill a 12mm hole and use some thermal compound, but what would be better is if you do smaller hole and use a reamer to get it just under 12mm then you could press-fit.

It'd be best to drill through the thick bottom plate of the heatsink, but if you have to drill holes through heat pipes don't do it, I heard they contain some gas/liquid that explodes when exposed to oxygen.

You could get heatsinks for this purpose with a setscrew, just look around ebay and make sure it has a 12mm hole :)
 
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Yes, setscrews are the way to go if you
want to swap in and out to test different
modules. Press fit for something more
permanent, but you need a big press.
 




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