Old 11-29-2017, 12:46 AM #17
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,826
Rep Power: 6380209
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: 7,826
Rep Power: 6380209
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: 6 watt laser build, host tail cap can't handle the current

My idea is to keep the spring as it is, but just solder a short length of copper from one end to the other - this keeps the mechanical action of the spring to some degree yet negates the problem of the poor electrical conductivity of the steel. Surely it is a hack, but if it just the last little bit you need it could do the job.

I've found that you can actually solder onto most springs used in flashlight housings and such. This would probably not be the case if they were pure steel, i suppose they are nickel plated or something to help with electrical contact, which also helps soldering onto them greatly.

As for the magnet switch idea: It's not a new idea at all, i think there are some products on the market that use this approach already (not sure for lasers, but for things like diving lights and such). Upside in that case you can have a hermetically sealed case that does not rely on a floppy piece of rubber to prevent water ingress, a serious problem once you get to several bars of pressure.


Benm is online now   Reply With Quote


















Old 11-29-2017, 01:51 AM #18
RedCowboy's Avatar
Class 4 Laser
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 6,421
Rep Power: 19859607
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
RedCowboy RedCowboy is online now
Class 4 Laser
RedCowboy's Avatar
 
Join Date: Jul 2015
Location: Suburbs of Atlanta Georgia
Posts: 6,421
Rep Power: 19859607
RedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond reputeRedCowboy has a reputation beyond repute
Default Re: 6 watt laser build, host tail cap can't handle the current

These are doubles that you can cut apart at the bottom, beryllium copper.
You can reshape the spring some or use a circle of plastic cut from a sandwich meat box or other household item to insulate underneath.


https://www.ebay.com/p/2-Sets-Dual-B....c100005.m2219


---------edit---------

If you are going to build a lot you can make your own springs, piano wire for mechanical and beryllium copper for electrical.

https://www.ebay.com/itm/1x-Berylliu...VzVOzg1AHsmUnA

-----edit-----

I found a quick video, you can also use the shaft of a screwdriver to wind springs.

__________________
You can not put freedom in a bag.
You can't weigh it on a scale or offer it for sale.
Yet it is the single most valuable thing anyone has ever had.

Last edited by RedCowboy; 11-29-2017 at 02:08 AM.
RedCowboy is online now   Reply With Quote
Old 12-07-2017, 01:04 PM #19
Garoq's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,455
Rep Power: 916227
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Garoq Garoq is offline
Class 3R Laser
Garoq's Avatar
 
Join Date: Aug 2010
Location: Southwest Utah
Posts: 1,455
Rep Power: 916227
Garoq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond reputeGaroq has a reputation beyond repute
Default Re: 6 watt laser build, host tail cap can't handle the current

I'm a little late to the party...this also may have been a case of a short or another defect within the tail cap. I have run 3A through the small caps with no problem, though I have not tried 5A or higher.
__________________
Serving thousands of satisfied customers since 2010!


Survival Laser, Inc., 2113 W 850 N, Cedar City, UT 84721

Eagle Pair® Laser Safety Goggles • AW™ Batteries • C6/S4/Stainless/S4X Hosts • Custom Diode Drivers • Chargers • Lenses • Accessories

U.S. customers store link>> http://www.survivallaserusa.com
International customers store link>> http://www.survivallaser.com

LPF member 10% everyday discount code = LPF445
Free shipping on US orders over $100 net
Free shipping on international orders over $200 net

PLEASE READ THIS BEFORE BUILDING OR USING A HIGH POWER LASER!

AND THIS: Instructive Video Review on Goggles Safety

7 Watt S4X Host/NUBM44 Diode/SXD Tutorial
C6 Laser Assembly Tutorial
How to Install a Blank Battery Contact Board Into a Drilled Pill
How to Solder a DTR Diode Module to a Survival Laser Driver & Pill Assembly
Installing and Testing the SL-SD-1/DX 26110 Driver in a C6 Pill
Garoq is offline   Reply With Quote
Old 12-07-2017, 05:30 PM #20
Lifetime17's Avatar
Class 3B Laser
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 4,279
Rep Power: 12670054
Lifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond repute
Lifetime17 Lifetime17 is online now
Class 3B Laser
Lifetime17's Avatar
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 4,279
Rep Power: 12670054
Lifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond repute
Default Re: 6 watt laser build, host tail cap can't handle the current

His little late but as Red says you can make your own springs. I did in the past and the technique Red shows is the way. When I wound my springs I would heat them Red hot then dip them I oil to temper them so they retain there shape.

Rich
__________________
HOSTS/HEAT SINKS/FOCUS ADAPTERS/ 510 MODULES/
Plug N play Hosts
:
Lifetime17 is online now   Reply With Quote
Old 12-07-2017, 11:39 PM #21
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,826
Rep Power: 6380209
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: 7,826
Rep Power: 6380209
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: 6 watt laser build, host tail cap can't handle the current

Making a replacement spring from a more conductive material could be a good idea. The problem with many battery springs is that they are made out of poorly conductive steel.

It doesn't even take that much, i've seen some video in which someone had one of those usb powerbank things where you insert your own 18650 cells, all just in parallel. He got the first one on, and the put the second one in the wrong way around - spring was glowing red hot and then just detached from the bus bar (or broke due to melting).
Benm is online now   Reply With Quote
Old 12-08-2017, 12:20 AM #22
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20875830
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: 11,775
Rep Power: 20875830
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: 6 watt laser build, host tail cap can't handle the current

Who would show a video of themselves making such an idiotic mistake? That seems like the kind of thing you'd want to keep to yourself and make a mental note not to do it again.

"Here's me putting a battery in backwards and melting the contact spring. I guess I'm lucky it didn't explode in my face. Likes?"
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
502nm 110 mW 501B Lifetime
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
574nm OptLaser DPSS Laser 36 mW
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
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM
paul1598419 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



























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 09:37 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC