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 > Tutorials, Help & Repairs



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



Reply
 
LinkBack Thread Tools Display Modes
Old 06-09-2016, 02:48 AM #1
Rivem's Avatar
Class 2M Laser
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is online now
Class 2M Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default My DIY Repair of a 2.5W LaserBee USB LPM *SUCCESS*

EDIT: Success! Wasn't really planning to get a laser power meter any time soon, but the project seemed intriguing and was a good deal. It panned out, and now I've saved a lot on an LPM that should suit my needs well.

For the details on the repair, there were three problems I had to fix:

1. Wouldn't connect to a computer.
For this problem, I popped the device open and immediately saw the terrible USB cable. The conductors were unusually thin and very brittle. Cables like this easily break due to odd angles and movement. I confirmed with a continuity test with my multimeter. The only reasonable solution is a replacement. Cutting an old cable and soldering it onto the USB contacts did the trick, but I'd advise carefully making sure you solder things in where they're supposed to go. The original conductor colors weren't the standard, but they were close enough to guess. I've left mine in a temporary state so that I can eventually put in a female USB mini connector.

2. Connected to a computer but driver failed in Windows 10
This problem has been fairly common recently, and I figured it would be the case when I saw the generic USB to serial board. The issue is that Windows 8 and onward marked a change from drivers being mostly managed by the users and PC OEMs to being almost entirely managed by Microsoft automatically. This made using most peripherals a lot easier since drivers don't have to be manually installed any more, but it also allowed manufacturers to push whatever drivers they wanted onto consumers. USB to serial controllers had serious issues due to the companies FTDI and Prolific making drivers that wouldn't work with (destroy in FTDI's case) the fairly common counterfeit chipsets found in many peripherals with Chinese manufacturing origins.

Anyway, the fix isn't too bad. Just search around for information on counterfeit compatible Prolific PL2303 drivers, and manually install one. They'll be an older driver from before the anti-counterfeit features. Install it, find the device in your device manager, and update the driver to the older one. Be careful not to get yourself a virus though. FYI, the PC might revert to using the newer driver if you connect to a different USB port.

3.Noisy readings without zeroing or any clear curves
This issue was a little confusing at first, but I discovered there were serious jumps if I moved the TEC sensor around. I figured it was the cable considering how the USB was, and sure enough, there was way too much resistance and loss of continuity depending upon the position. I fixed this one using the original connector on some spare RJ-174 Coax cable which barely fit the old connector just perfectly. It's a lot beefier and less resistant than the original cable, but the numbers don't seem too far off. That stabilized the numbers and gave good zeroing.


Photos:

The LPM electronics are on the left with the TEC cable coming out, and the counterfeit USB-Serial controller is on the right with the tentative USB setup until I can order my connectors.


The bump is from my inability to see the laser dot through my safety goggles and trying to take a picture.


Original****************************************** ***********
I bought a broken 2.5w Laserbee that wouldn't connect to a computer from JLM. It was a good deal, so I figured I'd give it a shot.

Right out the box, I noticed the USB cable was absolutely terrible. Worst Chinese cable I've seen in a while. I broke out the continuity tester, and sure enough, it's broken on 3 out of 4 conductors. As a test, I could easily split the conductors with a pinch.

There were some really bad solder joints on the boards I ignored, but they looked functional enough. I didn't want to risk it without my good gear.

I cut an older, unused donor cable and soldered it in. Connection to the Prolific USB-Serial device was immediately successful.

I've read about how these don't work with Windows 8 and 10 drivers, and I'm interested to see how I can get around it for myself. Still working on it at the moment since I can't quite get Peregrine to even start on my laptop yet. I also can't decide if I should replace the hardware or just work around the driver. Stay tuned for updates and photos.

Edit: Got it working and connected to Peregrine.
There's an issue in the TEC cable as well though. Readings are all over and noisy. I'm thinking it's the solder joint between the tec leads and cable.
Edit 2: Another very poor quality cable. There's high resistance on both conductors, and continuity is lost with bending. I'll have to replace it, but I think I've got some that'll suit it just fine. That's a project for tomorrow.

Edit 3: Just found a little bit of spare RJ174 and soldered it up as a replacement TEC cable. Have to run some errands, but I'll test it tonight.
************************************************** **********


__________________
Now in the Member Collections Section: Rivem's Collection.


Free after another brutal semester.
I'll still be a bit busy this summer, but expect to see more of me.

Last edited by Rivem; 06-13-2016 at 03:18 AM.
Rivem is online now   Reply With Quote







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







Old 06-09-2016, 11:14 AM #2
Lifetime17's Avatar
Class 3B Laser
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,026
Rep Power: 32235
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 offline
Class 3B Laser
Lifetime17's Avatar
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,026
Rep Power: 32235
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: My DIY Repair of a 2.5W LaserBee USB LPM

Hi,
Great deal on the LPM and a fixer upper to my 7W Laserbee works fine with Windows 10 . My wife had her laptop and said it was old and slow so the wheels started turning and bought her a new one. Well after a couple jours of cleaning the entire unit back i use it for just my Data logging on my bench it was set up for win 7 now its win 10 works fine with the LPM.

Rich
Lifetime17 is offline   Reply With Quote
Old 06-09-2016, 12:48 PM #3
Rivem's Avatar
Class 2M Laser
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is online now
Class 2M Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM

Quote:
Originally Posted by Lifetime17 View Post
Hi,
Great deal on the LPM and a fixer upper to my 7W Laserbee works fine with Windows 10 . My wife had her laptop and said it was old and slow so the wheels started turning and bought her a new one. Well after a couple jours of cleaning the entire unit back i use it for just my Data logging on my bench it was set up for win 7 now its win 10 works fine with the LPM.

Rich
This one is older, and it appears to have a counterfeit Prolific chipset. Window 8 and 10 actively manage drivers, and the newer one that controls Prolific devices has anti-counterfeit measures, so it doesn't work right off the bat.

All I did was find an older driver online and manually installed it.

The newer LPMs either use a genuine chipset or one that escapes anti-counterfeiting measures more easily.

This is actually a pretty big issue with computer peripherals since W8 came out.
__________________
Now in the Member Collections Section: Rivem's Collection.


Free after another brutal semester.
I'll still be a bit busy this summer, but expect to see more of me.
Rivem is online now   Reply With Quote
Old 06-09-2016, 03:42 PM #4
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,993
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 7,993
Rep Power: 36221
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM

Quote:
Originally Posted by Rivem View Post
This one is older, and it appears to have a counterfeit Prolific chipset. Window 8 and 10 actively manage drivers, and the newer one that controls Prolific devices has anti-counterfeit measures, so it doesn't work right off the bat.

All I did was find an older driver online and manually installed it.

The newer LPMs either use a genuine chipset or one that escapes anti-counterfeiting measures more easily.

This is actually a pretty big issue with computer peripherals since W8 came out.
USB cable on mine is terrible too - still works, for now at least. Easy enough fix when it does eventually break. Good to know about drivers - will need to try it out on my W10 machine!

As for counterfeit chips - that's a common problem with both the Prolific chips and the FTDI chips it seems. Sometimes it's hard to tell the difference apparently. FTDI had the same anti-counterfeit measures, caused quite a stir with a bunch of folk when that driver came out.

Thanks!
__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<


Last edited by diachi; 06-09-2016 at 03:43 PM.
diachi is online now   Reply With Quote
Old 06-09-2016, 04:21 PM #5
ElectricPlasma's Avatar
Super Moderator
 
Join Date: Dec 2015
Location: Southern Ontario, Canada
Posts: 1,351
Rep Power: 38661
ElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond repute
ElectricPlasma ElectricPlasma is offline
Super Moderator
ElectricPlasma's Avatar
 
Join Date: Dec 2015
Location: Southern Ontario, Canada
Posts: 1,351
Rep Power: 38661
ElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond reputeElectricPlasma has a reputation beyond repute
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM

Great job Rivem! Looks like the LPM went to a worthy candidate
__________________

I'm selling some custom machined hosts. Click here to take a look!
__________________

-=====[]
────────────────────────────────────────✺

632.8nm: Melles Griot HeNe, 1mW
532nm: Custom made GITD Pocket laser: ~133mW
532nm: Chrome laser pen: ~50mW
532nm: eBay 303: ~60mW
465nm: 07E Laser Box Build: 4W
462nm: M462 Pocket Build: 1W
450nm: Stainless Steel NUBM44 Handheld: 6.8W
445nm Pocket Series from Podo (Sanwu): 500mW
405nm: eBay pen

Keep yourself safe. *link*
-=====[]
────────────────────────────────────────✺
ElectricPlasma is offline   Reply With Quote
Old 06-09-2016, 05:59 PM #6
Rivem's Avatar
Class 2M Laser
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is online now
Class 2M Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM

Quote:
Originally Posted by diachi View Post
USB cable on mine is terrible too - still works, for now at least. Easy enough fix when it does eventually break. Good to know about drivers - will need to try it out on my W10 machine!

As for counterfeit chips - that's a common problem with both the Prolific chips and the FTDI chips it seems. Sometimes it's hard to tell the difference apparently. FTDI had the same anti-counterfeit measures, caused quite a stir with a bunch of folk when that driver came out.

Thanks!
Glad I could help a bit diachi. It's been a fun little project.

Yeah. I've dealt with this problem quite a bit since my unwilling switch to W8 a few years ago. Prolific's drivers just won't work, but FTDI's will literally brick the chipset for good occasionally. I had a few USB to Serial devices that were rendered completely unusable with the update. No way to fix them without a genuine replacement, but the devices were luckily cheap Chinese stuff.

Counterfeit chips like that are actually pretty common in any peripherals made in Asia since suppliers are even hard for OEMs to distinguish. Luckily, replacing the chip with a genuine one or bypassing it is pretty straightforward in USB to serial controllers if you lose an expensive device. Still not cool of Microsoft to push those updates on users.

Quote:
Originally Posted by ElectricPlasma View Post
Great job Rivem! Looks like the LPM went to a worthy candidate
Thanks ElectricPlasma. Sorry I had to cut you off from it.
__________________
Now in the Member Collections Section: Rivem's Collection.


Free after another brutal semester.
I'll still be a bit busy this summer, but expect to see more of me.

Last edited by Rivem; 06-09-2016 at 07:30 PM.
Rivem is online now   Reply With Quote
Old 06-10-2016, 04:31 AM #7
Rivem's Avatar
Class 2M Laser
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is online now
Class 2M Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM

Hahaha. That did it.
Data looks very good now.

I'm bumping to ask if anybody knows how these things zero. By changing the TEC cable to something beefier (less resistive), I've surely affected the voltage and current of the detection side of the system.

I've done a few tests, and they all seem a bit low, but I wasn't being too careful. I'd expect them to be a bit high, so maybe it's not an issue. Any thoughts?
__________________
Now in the Member Collections Section: Rivem's Collection.


Free after another brutal semester.
I'll still be a bit busy this summer, but expect to see more of me.
Rivem is online now   Reply With Quote
Old 06-13-2016, 03:11 AM #8
Rivem's Avatar
Class 2M Laser
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Rivem Rivem is online now
Class 2M Laser
Rivem's Avatar
 
Join Date: Feb 2016
Location: New Mexico and/or Colorado, USA
Posts: 914
Rep Power: 11075
Rivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond reputeRivem has a reputation beyond repute
Default Re: My DIY Repair of a 2.5W LaserBee USB LPM *SUCCESS*

UPDATE: Finished the repair and was successful
I'm going to leave the connections unfinished until I get my next parts order in to clean it up a bit.

The numbers seem okay now that I've tried some more recently metered lasers.

I added a photo detailing the inside a bit.
__________________
Now in the Member Collections Section: Rivem's Collection.


Free after another brutal semester.
I'll still be a bit busy this summer, but expect to see more of me.
Rivem is online now   Reply With Quote
Reply

Tags
2.5w, laserbee usb, lpm





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 07:08 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