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Old 09-01-2013, 04:05 AM #1
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Default Red laser feels underpowered?

I finished my red laser build, but I feel like it cant burn anything, I've tried focusing onto a inked piece of paper and nothing, not even that warm. I am running a Mitsubishi ML101U29-25 diode at 340 mA, should I push it harder? tips and advice are welcome


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Old 09-01-2013, 04:10 AM #2
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Default Re: Red laser feels underpowered?

also, it might be my hand was shaky, but the beam seemed to almost flicker a little?
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Old 09-01-2013, 05:47 AM #3
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Default Re: Red laser feels underpowered?

Doesn't look good at all it is underpowered 160mW LPM of red will slowly burn a hole through white paper and easy in black or darkened paper ,so try uping the current or its a dud diode ...i just tried with a 160mW red to confirm my above statement .it really won't ignite a piece of white paper but does burn holes through it, and lights matches
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Blasters Lasers and Gear
95 mW 405nm custom 501b
102 mW 405 nm custom C6
125 mW 405 nm focus-able 501b
270 mW 405 nm 20MM Cannon shell focus-able
705 mW 405 nm focus-able 501b G2 lens

865 mW 445 nm Kryton Groove
1130 mW 450 nm focus-able custom
1175 mW 450 nm focus-able S4

1375 mW 445 nm WL ARCTIC S3
2.3 watt 445 nm G2 -Cree Q5
3.1 watt +Adj 445 nm Blitzbuck V3.1 9mm SS Survival host

95 mW 532nm custom focus-able
110 mW 532 nm S4 host
125 mW 532 nm SD 305A x 2
135 mW 532 nm SD 301 focus-able x2

135 mW 532 nm focusable laser SD 303 x2
175 mW 532 nm custom focus-able

494 mW 532 nm O like Crown*
100 mW 589 nm
PGL III C
115 mW 635 nm custom C6 host
800 mW 635 nm Hotlights host G1 lens

155 mW 645 nm custom 501b host
160 mW 650 nm focus-able C6 host
255 mW 650 nm SD301
280 mW 650 nm SD302
260 mW 660 nm custom C6 host
505 mW 660 nm custom C6 host
45 mW 650 red and 114 mW 532nm multi laser
350mW 830 nm IR custom C6 focus-able
Another
4 dozen plus 5 mW to 160 mW in all colors Way overspec ebay pens
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Last edited by Blaster; 09-02-2013 at 01:59 PM.
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Old 09-02-2013, 11:59 AM #4
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Default Re: Red laser feels underpowered?

It actually can burn, I just had it focused like a moron. I might still raise the current just to see what it can do.
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Old 09-02-2013, 12:47 PM #5
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Default Re: Red laser feels underpowered?

Focus on the 301,302,303 series really is a matter of screwing the focus ring all the way till it stops don't force it and then it will be focussed about 5 cm in front of the laser give or take a bit. It does take practice to get it right and yes hand movement is a problem must really stay in same spot or you will just get a little smolder but not burn a hole or light a match
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Blasters Lasers and Gear
95 mW 405nm custom 501b
102 mW 405 nm custom C6
125 mW 405 nm focus-able 501b
270 mW 405 nm 20MM Cannon shell focus-able
705 mW 405 nm focus-able 501b G2 lens

865 mW 445 nm Kryton Groove
1130 mW 450 nm focus-able custom
1175 mW 450 nm focus-able S4

1375 mW 445 nm WL ARCTIC S3
2.3 watt 445 nm G2 -Cree Q5
3.1 watt +Adj 445 nm Blitzbuck V3.1 9mm SS Survival host

95 mW 532nm custom focus-able
110 mW 532 nm S4 host
125 mW 532 nm SD 305A x 2
135 mW 532 nm SD 301 focus-able x2

135 mW 532 nm focusable laser SD 303 x2
175 mW 532 nm custom focus-able

494 mW 532 nm O like Crown*
100 mW 589 nm
PGL III C
115 mW 635 nm custom C6 host
800 mW 635 nm Hotlights host G1 lens

155 mW 645 nm custom 501b host
160 mW 650 nm focus-able C6 host
255 mW 650 nm SD301
280 mW 650 nm SD302
260 mW 660 nm custom C6 host
505 mW 660 nm custom C6 host
45 mW 650 red and 114 mW 532nm multi laser
350mW 830 nm IR custom C6 focus-able
Another
4 dozen plus 5 mW to 160 mW in all colors Way overspec ebay pens
LaserBee 3.7W USB Laser Power Meter

Last edited by Blaster; 09-02-2013 at 01:59 PM.
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Old 09-02-2013, 01:23 PM #6
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Default Re: Red laser feels underpowered?

I lightened up on the focus ring and focus is the size of a pin at about 3-4 feet
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Old 09-02-2013, 02:04 PM #7
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Default Re: Red laser feels underpowered?

Quote:
Originally Posted by superh90x View Post
I lightened up on the focus ring and focus is the size of a pin at about 3-4 feet
Yes my distance is from my sd301,302,303 series obviously some are different? ...your Not gonna burn much from 4 feet with a less than 100 mW laser ,1 plus watt 445nm yes you will ..I'm mainly talking about holding it by hand as its virtually impossible not to move the spot and hence focus point of the laser
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Blasters Lasers and Gear
95 mW 405nm custom 501b
102 mW 405 nm custom C6
125 mW 405 nm focus-able 501b
270 mW 405 nm 20MM Cannon shell focus-able
705 mW 405 nm focus-able 501b G2 lens

865 mW 445 nm Kryton Groove
1130 mW 450 nm focus-able custom
1175 mW 450 nm focus-able S4

1375 mW 445 nm WL ARCTIC S3
2.3 watt 445 nm G2 -Cree Q5
3.1 watt +Adj 445 nm Blitzbuck V3.1 9mm SS Survival host

95 mW 532nm custom focus-able
110 mW 532 nm S4 host
125 mW 532 nm SD 305A x 2
135 mW 532 nm SD 301 focus-able x2

135 mW 532 nm focusable laser SD 303 x2
175 mW 532 nm custom focus-able

494 mW 532 nm O like Crown*
100 mW 589 nm
PGL III C
115 mW 635 nm custom C6 host
800 mW 635 nm Hotlights host G1 lens

155 mW 645 nm custom 501b host
160 mW 650 nm focus-able C6 host
255 mW 650 nm SD301
280 mW 650 nm SD302
260 mW 660 nm custom C6 host
505 mW 660 nm custom C6 host
45 mW 650 red and 114 mW 532nm multi laser
350mW 830 nm IR custom C6 focus-able
Another
4 dozen plus 5 mW to 160 mW in all colors Way overspec ebay pens
LaserBee 3.7W USB Laser Power Meter

Last edited by Blaster; 09-02-2013 at 02:04 PM.
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