SciFi lasers

[Laser Chick]

Re: Scifi lasers- how I dropped 140 USD for 4 minutes

It is wise to always read the users manual hard copy or electronic whenever you get a new item as it will tell you if the laser has a duty cycle and it's battery orientation.
A few minutes reading it can save you a boat load of grief.
I have different makes and models of hand held lasers and most are negative end of the battery inserted into the host but some are opposite also.

 

[WizardG]

Re: Scifi lasers- how I dropped 140 USD for 4 minutes

The diodes would have to be MORE than 100% effecient for my statement to be false .
It's a law, less votage with a positive resistance is less current.

Even if the diodes were 100% effecient, taking 1 watt of power, power is directly measured by Volts x Amps, and if the laser is rated for 1000mW on 8.4V, then it was doing 700mW on 6.2Volts

Actually, the 405 diodes are extremely sensitive to reverse voltage. The reverse voltage rating for them is in fact lower than the forward operating voltage. They're diodes only in the sense that they have a P-N junction but don't ask them to block any reverse voltage. Here's an example: http://www.cel.com/pdf/datasheets/nv4v31mf.pdf The forward operating voltage is 5 volts (typical) but it's only rated for 2 volts when reverse biased. Generating high energy 405nm photons requires that the crystal structure of the diode be under extremely high levels of internal stress (electrically) and reverse bias of even a couple volts destroys the crystal structure of the P-N junction.

 

[Thejoker301]

Re: Scifi lasers- how I dropped 140 USD for 4 minutes

So he sent me the laser back. And when I will have it I will be able to fix it for him. Although he did go over the 1 minute duty-cycle.

Will update you when I have it on hand.

 

[moze85]

I have several lasers and seldom used many of them, so I would often end up putting the batteries in wrong. Easy to do unless its clearly labeled.

 

[Zombie21]

So he sent me the laser back. And when I will have it I will be able to fix it for him. Although he did go over the 1 minute duty-cycle.

Will update you when I have it on hand.

I hope i get the laser that was sent months ago as a replacement for my doa arcane 2.0. It's been over 6 months and I have nothing and minimal reply. I just want this laser to work what should I do to fix it I don't want to send it back without a refund or another laser shipped which was promised months ago

 

[Thejoker301]

I hope i get the laser that was sent months ago as a replacement for my doa arcane 2.0. It's been over 6 months and I have nothing and minimal reply. I just want this laser to work what should I do to fix it I don't want to send it back without a refund or another laser shipped which was promised months ago

I have emailed you , we will get it done asap together :beer:

 

[OVNI]

Re: Scifi lasers- how I dropped 140 USD for 4 minutes

manual is actually being emailed automatically in the order confirmation after you order

I never received a manual, still don't have the laser yet (Dec 23rd has come & gone but I'm seeing activity on the tracking number) so perhaps it's in the package? I looked all over the site and could not find a manual there.

Is it true that batteries go in negative toward tailcap for all Sci Fi lasers as stated in this thread?

 

[Thejoker301]

Re: Scifi lasers- how I dropped 140 USD for 4 minutes

I never received a manual, still don't have the laser yet (Dec 23rd has come & gone but I'm seeing activity on the tracking number) so perhaps it's in the package? I looked all over the site and could not find a manual there.

Is it true that batteries go in negative toward tailcap for all Sci Fi lasers as stated in this thread?

Manual is in the website bud. Check the website product page. You can download the manual these days.

Yep negative to tailcap on all lasers.

 

[Arkshed]

Just got mine, took some time but international shipping can be tricky and from what I can tell he's improving with the shipping. But the laser got here today and its awesome! great quality build. Need some more time to play with the divergence but very happy overall.

 

[JFXMedia]

I received my 3 watt laser from him, was given 2 wrong tracking numbers but at least it stopped me from bugging him for information etc. It arrived after about 3 weeks I believe. However the diode itself was cracked and shattered inside, so it just does not work well at all, no burning etc.

It has been difficult to get a response from him now. Maybe he will respond here though. I agree with everyone, if he's just too busy but trying his best, why not hire your nephew or anyone, to at least reply to emails. He seems like a really nice guy, but he must be too busy.

 

[Thejoker301]

I received my 3 watt laser from him, was given 2 wrong tracking numbers but at least it stopped me from bugging him for information etc. It arrived after about 3 weeks I believe. However the diode itself was cracked and shattered inside, so it just does not work well at all, no burning etc.

It has been difficult to get a response from him now. Maybe he will respond here though. I agree with everyone, if he's just too busy but trying his best, why not hire your nephew or anyone, to at least reply to emails. He seems like a really nice guy, but he must be too busy.

I did emailed you back buddy. Check your email I said it is covered under waranty and will be replaced :beer:

 

[JFXMedia]

I received the one but I emailed a few times since then just inquiring what we could do about it or when the replacement could be shipped and what exactly it would be, do you have any ETA or what you are sending ? I'll email again. Thanks

 

[LEDbeam]

I think the manual leaves way too much to be desired. I made my order for a laser just a few days ago and got the manual in my email, and the information in it is really no different from what can be found in the advertisements on the site. It talks about putting the batteries in the correct way, which battteries to use, and the duty cycle. I can think of a few more issues that could be covered in the manual....

One thing would be the use of the focusing ring. How is it used? Should it be turned while the laser is turned on? I can imagine that a person could easily get burned that way! But it would be natural to do since the laser has to be on in order for the user to see how the beam changes with the turning of the focus.

How about ambient operating temperature? Does the duty cycle change if the ambient temperature is very warm or very cold?

Another thing that could be addressed is disassembly. Are there any parts of the laser that could safely be dismantled if someone wanted to look inside? Is there any part of the internals that should never be touched or taken out? When I get mine, I'll be curious about what's inside since I've never owned one before. Plus, it might help me to learn about building one of my own. But that wouldn't be worth it if taking it apart means destroying a perfectly good unit.

 

[Ricker]

I think the manual leaves way too much to be desired. I made my order for a laser just a few days ago and got the manual in my email, and the information in it is really no different from what can be found in the advertisements on the site. It talks about putting the batteries in the correct way, which battteries to use, and the duty cycle. I can think of a few more issues that could be covered in the manual....

One thing would be the use of the focusing ring. How is it used? Should it be turned while the laser is turned on? I can imagine that a person could easily get burned that way! But it would be natural to do since the laser has to be on in order for the user to see how the beam changes with the turning of the focus.

How about ambient operating temperature? Does the duty cycle change if the ambient temperature is very warm or very cold?

Another thing that could be addressed is disassembly. Are there any parts of the laser that could safely be dismantled if someone wanted to look inside? Is there any part of the internals that should never be touched or taken out? When I get mine, I'll be curious about what's inside since I've never owned one before. Plus, it might help me to learn about building one of my own. But that wouldn't be worth it if taking it apart means destroying a perfectly good unit.

The focus ring will not burn you unless you cover your hand over the beam, the diameter of an Arcane's focus ring is HUGE. Even a tiny focus ring on a DTR module won't burn you. Turn it outwards before turning it on so it's not focused on something and starts burning, THEN turn it back in to get it focused to how you want it (while it's on). And this is all while wearing your safety glasses. Put those on before finishing putting the batteries in correctly.

You should never take apart a laser or any electrical device if you don't know basic electrics or how the said device operates, works, comes apart, etc. Do not leave the focus ring off because getting dust on the diode window is NOT good! Taking the laser apart for no reason then having something break could seriously effect SciFi's decision on fixing it while under warranty. And if you just have to take it apart ALWAYS take the batteries out first to reduce you risk of electrical shock.

About the ambient temperature. Use common sense. Keep it at the duty cycle for "normal" room temperatures, and less if it is "damn hot" out. If it were me, and my duty cycle was 60sec/60sec, temp was 90 deg F, I would do 45sec/80sec. If temp 100+ F, I would do 30sec/90sec, etc.

I know it wasn't you but try not to necropost either, thanks and happy/safe lasing!!

 

[LEDbeam]

The focus ring will not burn you unless you cover your hand over the beam, the diameter of an Arcane's focus ring is HUGE. Even a tiny focus ring on a DTR module won't burn you. Turn it outwards before turning it on so it's not focused on something and starts burning, THEN turn it back in to get it focused to how you want it (while it's on). And this is all while wearing your safety glasses. Put those on before finishing putting the batteries in correctly.

You should never take apart a laser or any electrical device if you don't know basic electrics or how the said device operates, works, comes apart, etc. Do not leave the focus ring off because getting dust on the diode window is NOT good! Taking the laser apart for no reason then having something break could seriously effect SciFi's decision on fixing it while under warranty. And if you just have to take it apart ALWAYS take the batteries out first to reduce you risk of electrical shock.

About the ambient temperature. Use common sense. Keep it at the duty cycle for "normal" room temperatures, and less if it is "damn hot" out. If it were me, and my duty cycle was 60sec/60sec, temp was 90 deg F, I would do 45sec/80sec. If temp 100+ F, I would do 30sec/90sec, etc.

I know it wasn't you but try not to necropost either, thanks and happy/safe lasing!!

Thank you for the help with those issues! But I didn't even know what necroposting was until I looked it up. I thought this thread was open to all matters regarding the company SciFi Lasers for as long as the company was in business. The thread has been active for quite some time.

 

[Ricker]

Yeah that's why I said I know it wasn't you. It's actually about OP's issue with his laser and SciFi but the OP and The Joker got it straightened out a few months ago. That was not directed to you though.

If you have anymore questions feel free to PM me. I'm still learning just like everyone so if I don't know the answer I can at least steer you in the right direction! :beer: