Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Green Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 06-03-2017, 09:28 AM #1
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Just thought I'd share this PL520 build I did a few months back to add something to the sound of tumble weeds rolling through the lands of LPF builds lately

I wanted switchable output with the lowest output having some degree of eye safety (keeping in mind something should never actually be considered "eye safe" from any laser) so I gave it outputs of <5mw, ~40mw and ~110mw in a switching network I designed using a double pole switch that controls the output by changing between program resistors with the off position being the lowest setting, the other two positions adding parallel resistance (so, technically less resistance...higher current) on top of the base resistor set. Linear regulator is the LM317 with ripple smoothing, spike filtering and full bypass caps Eight Ways to Sunday. I found the G7 had a nice clean output and stuck with it, also tried the acrylic which looked good as well but the output fell noticeably and the 3 element just looked dirty (bad dirty).

Speaking of dirty, I couldn't stop laughing after looking at the picture of the LM317 mounted to the case before I soldered it. Seriously didn't end up like that on purpose.

Here's the pics...
Attached Thumbnails
Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00001.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00002.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00003.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00004.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00005.jpg  

Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00006.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00007.jpg  


__________________
If you take what I said, then put something better in there... that's what I should have said.

Last edited by aaronnoraa; 06-03-2017 at 09:42 AM.
aaronnoraa is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 06-03-2017, 09:31 AM #2
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

That sunbathing LM317...
Attached Thumbnails
Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00008.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00010.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00020.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00022.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00023.jpg  

Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00024.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00011.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00019.jpg  
__________________
If you take what I said, then put something better in there... that's what I should have said.
aaronnoraa is offline   Reply With Quote
Old 06-03-2017, 09:34 AM #3
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

...and the rest of the pics of it finished in my eh, shop. I'm happy with the way the micro led power indicator turned out, simply drilled a hole and slapped on the backside.
Attached Thumbnails
Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00013.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00014.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00015.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00016.jpg   Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00017.jpg  

Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply-image00018.jpg  
__________________
If you take what I said, then put something better in there... that's what I should have said.

Last edited by aaronnoraa; 06-03-2017 at 09:47 AM.
aaronnoraa is offline   Reply With Quote
Old 06-03-2017, 02:06 PM #4
BobMc's Avatar
Class 3R Laser
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 2,336
Rep Power: 37877
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
BobMc BobMc is online now
Class 3R Laser
BobMc's Avatar
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 2,336
Rep Power: 37877
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Very nice build! Love all the pics.
__________________
BobMc's Laser Museum;
http://laserpointerforums.com/f76/bo...l?nojs=1#links


~ Till righteousness is sought after for it's own sake, mankind will not know what makes for peace. ~
BobMc is online now   Reply With Quote
Old 06-03-2017, 02:43 PM #5
badboybilly's Avatar
Class 2M Laser
 
Join Date: Mar 2015
Location: Sydney Australia
Posts: 925
Rep Power: 21675
badboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond repute
badboybilly badboybilly is online now
Class 2M Laser
badboybilly's Avatar
 
Join Date: Mar 2015
Location: Sydney Australia
Posts: 925
Rep Power: 21675
badboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond reputebadboybilly has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Nice job, very nice,
Yeah not many builds being posted lately, hopefully I'll have something to show-contribute tomorrow!
__________________
Custom 589 H module build 50mw
Warsun Mini stainless PL515 230ma Xboost 35mw acrylic
Goread Stainless PLTB520B1 480ma Xboost 210mw G2
Coast hp14 Mod NUBMO7E 4.5a SXD 5w
JetBeam Titanium 24k Gold Plated duel Flexdrive 2w
Tank007 Stainless BDR 206 .5a Nano 850mw
Sigelli Mec Mod BDR 209 .5a Nano 710mw
Aurora sh-032 SF-BW512 .5a Nano 700mw
Kryton Groove NDB7875 2.4a Blitzbuck 2.9w
Aluminium host NDB7875 2.4a Xdrive 2.8w
Xplorer stainless mini NDB7875 1.8a Xboost 2.2w
UltraFire Stainless A140 1.2a boost driver 1w
Thor Aluminium Ebay M140 1.5a Buck driver 1.6w
Mini Stainless M140 1.8a Xboost 1.9w
Caravela Mod Brass Mitts 500 1.4a FlexdriveV5 1.36w
Gus Mod Stainless Mitts 500 1.4a AMC 5 mode 1w
Sec g7-L2 SS opnext-HL63603TG 190ma Linear 150mw
Custom RGB Module Flexdrives 300mw+
badboybilly is online now   Reply With Quote
Old 06-03-2017, 03:12 PM #6
BobMc's Avatar
Class 3R Laser
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 2,336
Rep Power: 37877
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
BobMc BobMc is online now
Class 3R Laser
BobMc's Avatar
 
Join Date: Apr 2016
Location: Lancaster ca
Posts: 2,336
Rep Power: 37877
BobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond reputeBobMc has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Badboy with a new build thread. My hearts starting to beat faster.
__________________
BobMc's Laser Museum;
http://laserpointerforums.com/f76/bo...l?nojs=1#links


~ Till righteousness is sought after for it's own sake, mankind will not know what makes for peace. ~
BobMc is online now   Reply With Quote
Old 06-03-2017, 07:47 PM #7
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,320
Rep Power: 47196
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 5,320
Rep Power: 47196
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Interesting. I haven't seen this kind of build using an LM317 like this before now. I see you prefer using proto-boards over printing circuit boards. That is fine for one of a kind builds like this. +rep.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Old 06-07-2017, 04:12 AM #8
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Physically switching the sense resistors is a ballsy move, man. You have no feedback for several milliseconds; caps or not, this is gonna cause some spikes.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 07-13-2017, 08:43 PM #9
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Quote:
Originally Posted by Cyparagon View Post
Physically switching the sense resistors is a ballsy move, man. You have no feedback for several milliseconds; caps or not, this is gonna cause some spikes.
Somehow missed your post until now, sorry for the late reply. I turn the unit off before switching the output level..
__________________
If you take what I said, then put something better in there... that's what I should have said.
aaronnoraa is offline   Reply With Quote
Old 07-14-2017, 01:30 AM #10
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,432
Rep Power: 16756
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,432
Rep Power: 16756
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Switching is not going to be that much of a problem really, the switches go open circuit between positions so there should only be power drops, not spikes.

The thing i dislike about it is mounting the lm317 electrically connected to the enclosure: the middle pin and tab of an lm317 are connected to it's output. The unit may still work, but i really prefer to have the case either isolated completly or connected to ground. If you put this on top of somthing that has it's case connected to ground it would short out the output. In this case it'd probably just turn the laser off and make the lm317 go into self-preservation shutdown, but it's not a good idea to begin with.
Benm is online now   Reply With Quote
Old 07-16-2017, 11:28 PM #11
aaronnoraa's Avatar
Member
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
aaronnoraa aaronnoraa is offline
Member
aaronnoraa's Avatar
 
Join Date: Jun 2015
Location: Seattle
Posts: 38
Rep Power: 0
aaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond reputeaaronnoraa has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Quote:
Originally Posted by Benm View Post
The thing i dislike about it is mounting the lm317 electrically connected to the enclosure: the middle pin and tab of an lm317 are connected to it's output. The unit may still work, but i really prefer to have the case either isolated completly or connected to ground.
The LM317 is insulated from the case, you can see the mica wafer in the picture of the regulator... the screw is also going through a teflon shield and washer isolating the securing side of the metal tab.
__________________
If you take what I said, then put something better in there... that's what I should have said.
aaronnoraa is offline   Reply With Quote
Old 07-17-2017, 12:52 AM #12
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,432
Rep Power: 16756
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,432
Rep Power: 16756
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: Triple Switchable Output, Lab Style PL520 Build w/Custom Linear Power Supply

Ah, in that case no problem at all. I figured it was just some heatsinking pad you used there as the bolt is metal.

I know of the insulating washer being available, but i prefer to use nylon bolts and nuts when mouting things electrically insulated. It's not required by any means but more easily to identify as electrically insulated of anyone attemps to do further work on the circuit. I figure it cannot get hot enough for the nylon to be a problem given the internal thermal limiting in the lm317.
Benm is online now   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 05:31 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC