FIXED! - Omnichrome HeCd laser (pics)

timelablasers · 05-30-2010, 07:40 AM

Hi all....
I'm still trying to get a HeCd laser I have up and going again. I've put it on LPF and did get some very good help on what to check, etc, but still not luck with getting it going.
Does anyone here know of where I could take it or who I could contact preferably near Melbourne, Australia that might be able to get it going for me? Thanks heaps.
Here are some photos of the laser......
The power supply;

The head;

The problem is that I'm getting three blinks for the error light after system is turned on and self check completed. This mean 'filament current error'.

timelablasers · 07-17-2010, 06:48 AM

Problem FIXED!!!!!
After months of looking through the laser head and power supply with a completely puzzled look on my face, putting it away, coming back to it, giving up again and so on.....I have finally found the problem and the laser is now working sweetly.
The problem was so simple. A wire inside the head was pressed up against and rubbed through to the tube chassis creating a short and returning an error to the PSU. Moved the wire.....problem solved. Wow! And to think I almost gave up on this thing entirely. It was very close to having the tube removed for display purposes and the rest being scrapped.
Many thanks goes to the guys in the other thread I started about this laser who generously offered their knowledge and expertise as much as they could on these forums.

SpyderFire · 07-17-2010, 06:55 AM

Pics or it didnt happen

HumanSymphony · 07-17-2010, 06:56 AM

Quote:

Originally Posted by SpyderFire

Pics or it didnt happen

Pics or GTFO

timelablasers · 07-17-2010, 06:57 AM

Quote:

Originally Posted by SpyderFire

Pics or it didnt happen

.....They will be here later on tonight Australian time

timelablasers · 07-17-2010, 09:38 AM

OK....some photos of it working....
You can just see part of the glowing laser tube through the cooling slits.

The beam looks almost completely clean in reality and is a purple colour.., but not so through the camera lens.

Very hard to pick up the actual colour of the laser light with the camera.

Looking towards the tube output end

aryntha · 07-18-2010, 05:32 AM

Wow. Very nice. This, HeCd, is still the gap in my collection... (well, also maybe KrIon)

( I just won an "unknown condition" HeCd (head only) Omnichrome 74 on ebay, which I'm suspecting will never, ever work But the price was right ($40 shipped) -- I'm still expecting a box full of broken glass )

I really gotta ask, Rob - Do you have a 445 running yet? I really would be interested in seeing the wavelength difference visibly between 445 and HeCd 442. Probably not much, but... I've been surprised before. (632.8 vs 640).

With Australia's tight rules on lasers, it's really amazing, the ones you come up with

If I didn't live "as far as humanly possible" from you, shipping-wise, I'd probably be trying to convince you to sell a lot more of these

05-30-2010, 07:40 AM	#1
timelablasers Class 1M Laser Join Date: Dec 2009 Posts: 228 Rep Power: 15	FIXED! - Omnichrome HeCd laser (pics) Hi all.... I'm still trying to get a HeCd laser I have up and going again. I've put it on LPF and did get some very good help on what to check, etc, but still not luck with getting it going. Does anyone here know of where I could take it or who I could contact preferably near Melbourne, Australia that might be able to get it going for me? Thanks heaps. Here are some photos of the laser...... The power supply; The head; The problem is that I'm getting three blinks for the error light after system is turned on and self check completed. This mean 'filament current error'. Last edited by timelablasers; 07-17-2010 at 06:41 AM.

07-17-2010, 06:48 AM	#2
timelablasers Class 1M Laser Join Date: Dec 2009 Posts: 228 Rep Power: 15	Re: FIXED! - Omnichrome HeCd laser (pics) Problem FIXED!!!!! After months of looking through the laser head and power supply with a completely puzzled look on my face, putting it away, coming back to it, giving up again and so on.....I have finally found the problem and the laser is now working sweetly. The problem was so simple. A wire inside the head was pressed up against and rubbed through to the tube chassis creating a short and returning an error to the PSU. Moved the wire.....problem solved. Wow! And to think I almost gave up on this thing entirely. It was very close to having the tube removed for display purposes and the rest being scrapped. Many thanks goes to the guys in the other thread I started about this laser who generously offered their knowledge and expertise as much as they could on these forums. __________________ 2 x Lab Style modules 150-200mW 650nm 50 x HeNe Lab, Head, bare tube 1-35mW 632.8nm 1 x ArKr Omnichrome 100mW 568nm 12 x DPSS Lab and module style 10-100mW 532nm 3 x HeNe Heads 1-5mW 543.5nm 12 x Ar Ion 20-80mW 488nm 2 x DPSS 10-20mW 473nm 2 x Ar Ion 25 & 100mW 457-514nm Multilines 2 x 445nm 1W & 300mW labs 1 x HeCd 50mW 442nm 1 x 405nm 130mW lab

07-17-2010, 06:55 AM	#3
SpyderFire Class 2 Laser Join Date: May 2010 Posts: 414 Rep Power: 27	Re: FIXED! - Omnichrome HeCd laser (pics) Pics or it didnt happen

07-17-2010, 09:38 AM	#6
timelablasers Class 1M Laser Join Date: Dec 2009 Posts: 228 Rep Power: 15	Re: FIXED! - Omnichrome HeCd laser (pics) OK....some photos of it working.... You can just see part of the glowing laser tube through the cooling slits. The beam looks almost completely clean in reality and is a purple colour.., but not so through the camera lens. Very hard to pick up the actual colour of the laser light with the camera. Looking towards the tube output end __________________ 2 x Lab Style modules 150-200mW 650nm 50 x HeNe Lab, Head, bare tube 1-35mW 632.8nm 1 x ArKr Omnichrome 100mW 568nm 12 x DPSS Lab and module style 10-100mW 532nm 3 x HeNe Heads 1-5mW 543.5nm 12 x Ar Ion 20-80mW 488nm 2 x DPSS 10-20mW 473nm 2 x Ar Ion 25 & 100mW 457-514nm Multilines 2 x 445nm 1W & 300mW labs 1 x HeCd 50mW 442nm 1 x 405nm 130mW lab

07-18-2010, 05:32 AM	#7
aryntha Class 3R Laser Join Date: Nov 2009 Location: Evergreen, CO Posts: 1,951 Rep Power: 143	Re: FIXED! - Omnichrome HeCd laser (pics) Wow. Very nice. This, HeCd, is still the gap in my collection... (well, also maybe KrIon) ( I just won an "unknown condition" HeCd (head only) Omnichrome 74 on ebay, which I'm suspecting will never, ever work But the price was right ($40 shipped) -- I'm still expecting a box full of broken glass ) I really gotta ask, Rob - Do you have a 445 running yet? I really would be interested in seeing the wavelength difference visibly between 445 and HeCd 442. Probably not much, but... I've been surprised before. (632.8 vs 640). With Australia's tight rules on lasers, it's really amazing, the ones you come up with If I didn't live "as far as humanly possible" from you, shipping-wise, I'd probably be trying to convince you to sell a lot more of these __________________ 3392nm:REO LHIP HeNe 2mW ∙ 980nm:OLIKE 155mW 808nm:OLIKE 200mW ∙ JETL PLC 600mW(682pk) 780nm:OLIKE 120mW 685nm:JRob 18650 47mW 671nm:CNI PGL3M 281mW DPSS ∙ CNI PGL3C 278mWpk 655nm:Moh LOC 254mW ∙ OLIKE 221mW ∙ Yob 320mWpk 638nm:Snyo 18650 40mW ∙ OPXT HL63133 200mW ∙ LG OHV PGL3C 463mWpk ∙ RHD ML520 700mW 633nm:JDS1145 HeNe 28mW ∙ JDS1145 HeNe 26mW ∙ JDS1135 HeNe 15mW 612nm:MG 05LOR151 HeNe 3mW ∙ REO LSTP 3mW 604nm:REO LSTP 2mW 594nm:LG Rigel 3mW ∙ LG PGL3C 15mWpk ∙ Lasos 7512 3mW ∙ CNI MGL3 58mWpk 589nm:CNI PGL3C 106mWpk ∙ CNI PGL3C 85mWpk ∙ CNI GLP 9mWpk 561nm:CNI PGL3C 30mW(41pk) 556nm:CNI PGL3C 20mW(22pk) 544nm:JDS1675P HeNe 2mW ∙ REO LHGR 2mW ∙ Lasos 7786 2mW 532nm:Aries PGL3C 150mW(180pk) ∙ CNI PGL3C 578mWpk ∙ JETL PLC 440mWpk 515nm:JDS 221420GL ArI 30mW 510nm:52mW DirGreen#2 ∙ 50mW 26650 DirGreen 488nm:Nlx DPSS 7mW ∙ JDS 2214 ArI 40mW ∙ JDS 2214 ArI 20mW ∙ JDS FCD488 DPSS 25mW ML:MG 65A106025 ArI ML 115mW 473nm:LG AqPro PGL3A 45mW(80pk) ∙ CNI PGL3C 110mWpk ∙ CNI PGL3C 95mWpk ∙ RPLB-25 60mWpk 458nm:JDS 2214VL ArI 8mW ∙ JDS 2214VL ArI 12mW ∙ RHD Diode 1.7W 452nm:Osram SM TO38 47mW 445nm:Yob 1410mW ∙ Polaris 156mW ∙ PGL3C 1200mW ∙ DTR-EHG 32650 2136mW 405nm:Yob 630mW ∙ JRob 18650 462mW ∙ Qfox 750mW ∙ JETL PLC 780mW

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode