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Old 10-06-2013, 11:02 PM #17
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

Actually, I was reading through old threads of mine, and that was an idea I had a LONNNGGG time ago. But I figured that not many people would be particularly interested since most hosts wouldn't accommodate that. Maybe I can work with one of the machinists around here and see if we can get a cheap host going that would be good for that.


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Old 10-07-2013, 12:50 AM #18
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

That's a great idea. I'd certainly be interested, provided the price isn't too high (I'm not into "high-end" hosts).
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low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
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473nm: BWB-10-OEM labby by CNI (10mW rtd)
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low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
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532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
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Old 10-07-2013, 01:01 AM #19
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

Well, it would all depend on the pricing the machinist would want to set for the host. I am sure I could do some sort of driver like that for <$25 pretty easily.
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Old 10-07-2013, 02:02 AM #20
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

Sounds great!
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405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
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650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
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Old 10-07-2013, 05:20 PM #21
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

Quote:
Originally Posted by Atomicrox View Post
@Cyparagon: the problem with PWM is that it doesn't make the low power modes eye-safe(r).
Not true. Think about average power. You might think a 100mW beam is dangerous. But if it is only active for a few microseconds, the beam simply cannot transfer enough energy to cause any damage.

Read wikipedia's MPE article.
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Old 10-07-2013, 08:50 PM #22
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

This is very true. Why do we often see that analog control is "better" than TTL though? Just curious. Because TTL is essentially PWM, is it not?
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Old 10-08-2013, 12:06 AM #23
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Default Re: [PICS] Driver with Modes: WITHOUT A Controller!

For the sake of the argument, if we consider only average power an Arduino could PWM a 2.56W laser to a safeish level of 10mW, on minimum power and 8-bit PWM.

But notice the MPE graph isn't very steep. We need to do the math to see which frequency would be needed for it to be as safe as a 10mW pointer.
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405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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