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Old 09-18-2011, 08:42 PM #1
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Default First Build + Tutorial for $55 445nm labby!!

Hello from South Africa!


Inspired by so many other CPU cooler builds, I decided my first diy build would be a lab laser. It's not professional but is IS cheap, durable and impossible to overheat. What more could I ask for?


I am a total newbie. Here's how I did it,, NOOB STYLE!!!:



What you need:

-Ca$$i0 A140 diode: $40 - DTR and others sell these on lpf
-Aixiz module: $4 - HighTechDealZ - Aixiz Laser Module - Blank
-Glass aixiz lens: $8 - ebay or look around on lpf
-Heatsink: $2
-Other components.. a few more $ - local electronics store. View driver link.



Heatsink & drilling:

Went to a e-scrapyard and got a cpu heatsink. 2$.
Tip: You will save big munneh if you get scrap value (without functioning fan) vs 'secondhand' value.

NOTE: Copper-core ones are very difficult to drill - I think because the copper expands when it gets hot, making the hole too small for your drill bit which gets stuck.
I would advise you to use aluminium unless you want to spend ages, dunking in cold water and with lots of stuck bits.
Remember to use oil and work your way up to 12mm GRADUALLY. This actually saves time because you do not have to wait for the copper to cool down before continuing. I used: 2mm, 5mm, 7mm, 10mm, 11.5mm (i think this really helped to get a perfect finish) and finally 12mm. No fancy reamer, just care, love and affection. And a slow drill speed

Tip: Put in dishwasher to get rid of all drill oil.





Installing module:

After soldering my pins and wires (pinout for a 445 diode here: http://www.google.co.za/imgres?q=140+pinout&um=1&hl=en&sa=N&tbm=isch&tbnid =h8RYZ79psjrT8M:&imgrefurl=http://laserpointerforums.com/f65/140-diode-pin-out-diagram-62237.html&docid=w374k7Xwf1rwRM&w=320&h=278&ei=AiR 3TpWSB6rT0QXsgIWdCA&zoom=1&iact=hc&vpx=636&vpy=304 &dur=3278&hovh=209&hovw=241&tx=166&ty=102&page=2&t bnh=153&tbnw=140&start=13&ndsp=15&ved=1t:429,r:13, s:13&biw=1066&bih=725)

Tip: Strip and loop an old wire at one end and put it around your wrist. Strip other end and tie to any hunk of metal. You have just made an antistatic wristband to protect your diode from static. Simple, cheap and effective.

I then pushed diode into aixiz module and then pushed that into my drilled heatsink... Doing things n00b-style I did not make a set screw. I just used some thermal adhesive from Dealextreme and pushed it in there. Maybe I will regret that later.




The driver:

The lm317 driver was simple to make. At 12v the driver heated up quite a bit - so remember to also let your driver know that you love it just as much by fixing it to an ugly sawn-off piece of aluminium. If you used a pot to adjust the current like I did - make sure it is rated above 1.5W. Here's a simple schematic. http://www.rog8811.com/laserdriver.h...It can be done

Tip: Touch the ends of the driver wires together while power is OFF before soldering it to your diode. I do not think this is neccessary for lm317 as there are no capacitors in series but it is a good habit for future that could save you a diode.

-Here is how to work out resistor values for your driver LM317 Current Calculator - Electric Circuit
-And i needed to modify my pot for fine adjustment by putting a resistor in parallell, this is my favorite link help with parallell resistance Online Parallel Resistor Calculator



I soldered the wires to the driver and voila. Although I didn't bother, if you really want a nice-looking unit, install driver in a project box (don't forget to drill holes for ventilation!!)
Be careful not to pull those diode wires or you might end up with a very lonely diode pin.
Just an idea- To prevent this you could try drilling a teeny hole at the back and screwing in a bolt with a washer and tighten that with the wires underneath to prevent accidental pulling. I didn't bother.




Beamshots:

Anyone ever been to Cape Town?


Table Mountain




Fine, there may have been a little smoke from the neighbours chimney


Ah.. how surreal.. the mother city


This one is hitting a tree, I know it doesnt look like it!!! Trees can be sneaky.







Thank you fore looking and I hope I helped someone.
Feel free to ask any questions or criticize.


.
Attached Thumbnails
First Build + Tutorial for  445nm labby!!-dsc07603_800x600.jpg   First Build + Tutorial for  445nm labby!!-dsc07625_800x600.jpg   First Build + Tutorial for  445nm labby!!-img_0476_800x600.jpg   First Build + Tutorial for  445nm labby!!-img_0494_800x600.jpg   First Build + Tutorial for  445nm labby!!-img_0512_800x600.jpg  

First Build + Tutorial for  445nm labby!!-img_0518_800x600.jpg   First Build + Tutorial for  445nm labby!!-317496_10150295716891086_631771085_8515649_1173373705_n-1-_800x600.jpg   First Build + Tutorial for  445nm labby!!-img00032-20110910-1401_800x600.jpg  



Last edited by Humphry; 09-20-2011 at 04:38 PM.
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Old 09-18-2011, 09:08 PM #2
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Awesome guide! Great pictures too! I really enjoyed the captions
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Old 09-19-2011, 02:32 AM #3
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Wow nice guide, man.

I was wondering where you lived at first. Cape town looks beautiful.
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Old 09-19-2011, 02:15 PM #4
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by Ghostchrome View Post
Wow nice guide, man.
I was wondering where you lived at first. Cape town looks beautiful.
Thanks!
And I am glad someone enjoyed the not-so-formal approach.

Yeah Cape Town is a great city for so many reasons, I really do count myself lucky to live here.
If you ever come to South Africa on holiday - don't even bother with Johannesburg our capital.

South Africa does have many problems though - poverty, lack of education, racism, political instability etc.

One can only hope these things will improve with time..


once again thanks for the encouragement - it goes a long way to help me have the confidence to post these things!
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Old 09-19-2011, 06:03 PM #5
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Nice guide. Simple terms and simple pictures. Very encouraging.
Well done !
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Old 09-19-2011, 06:39 PM #6
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Wink Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by Humphry View Post
Hello from South Africa!


Inspired by so many other CPU cooler builds, I decided my first diy build would be a lab laser.It's not professional but is IS cheap, durable and impossible to overheat. What more could I ask for?


I am a total newbie. Here's how I did it,, NOOB STYLE!!!:



What you need:

-Ca$$i0 A140 diode: $40 - DTR and others sell these on lpf
-Aixiz module: $4 - HighTechDealZ - Aixiz Laser Module - Blank
-Glass aixiz lens: $8 - ebay or look around on lpf
-Heatsink: $2
-Other components.. a few more $ - local electronics store. View driver link.



Heatsink & drilling:

Went to a e-scrapyard and got a cpu heatsink. 2$.
Tip: You will save big munneh if you get scrap value (without functioning fan) vs 'secondhand' value.

NOTE: Copper-core ones are very difficult to drill - I think because the copper expands when it gets hot, making the hole too small for your drill bit which gets stuck.
I would advise you to use aluminium unless you want to spend ages, dunking in cold water and with lots of stuck bits.
Remember to use oil and work your way up to 12mm GRADUALLY. This actually saves time because you do not have to wait for the copper to cool down before continuing. I used: 2mm, 5mm, 7mm, 10mm, 11.5mm (i think this really helped to get a perfect finish) and finally 12mm. No fancy reamer, just care, love and affection. And a slow drill speed

Tip: Put in dishwasher to get rid of all drill oil.





Installing module:

After soldering my pins and wires (pinout for a 445 diode here: http://www.google.co.za/imgres?q=140+pinout&um=1&hl=en&sa=N&tbm=isch&tbnid =h8RYZ79psjrT8M:&imgrefurl=http://laserpointerforums.com/f65/140-diode-pin-out-diagram-62237.html&docid=w374k7Xwf1rwRM&w=320&h=278&ei=AiR 3TpWSB6rT0QXsgIWdCA&zoom=1&iact=hc&vpx=636&vpy=304 &dur=3278&hovh=209&hovw=241&tx=166&ty=102&page=2&t bnh=153&tbnw=140&start=13&ndsp=15&ved=1t:429,r:13, s:13&biw=1066&bih=725)

Tip: Strip and loop an old wire at one end and put it around your wrist. Strip other end and tie to any hunk of metal. You have just made an antistatic wristband to protect your diode from static. Simple, cheap and effective.

I then pushed diode into aixiz module and then pushed that into my drilled heatsink... Doing things n00b-style I did not make a set screw. I just used some thermal adhesive from Dealextreme and pushed it in there. Maybe I will regret that later.




The driver:

The lm317 driver was simple to make. At 12v the driver heated up quite a bit - so remember to also let your driver know that you love it just as much by fixing it to an ugly sawn-off piece of aluminium. If you used a pot to adjust the current like I did - make sure it is rated above 1.5W. Here's a simple schematic. http://www.rog8811.com/laserdriver.h...It can be done

Tip: Touch the ends of the driver wires together while power is OFF before soldering it to your diode. I do not think this is neccessary for lm317 as there are no capacitors in series but it is a good habit for future that could save you a diode.

-Here is how to work out resistor values for your driver LM317 Current Calculator - Electric Circuit
-And i needed to modify my pot for fine adjustment by putting a resistor in parallell, this is my favorite link help with parallell resistance Online Parallel Resistor Calculator



I soldered the wires to the driver and voila. Although I didn't bother, if you really want a nice-looking unit, install driver in a project box (don't forget to drill holes for ventilation!!)
Be careful not to pull those diode wires or you might end up with a very lonely diode pin.
Just an idea- To prevent this you could try drilling a teeny hole at the back and screwing in a bolt with a washer and tighten that with the wires underneath to prevent accidental pulling. I didn't bother.




Beamshots:

Anyone ever been to Cape Town?


Table Mountain




Fine, there may have been a little smoke from the neighbours chimney


Ah.. how surreal.. the mother city


This one is hitting a tree, I know it doesnt look like it!!! Trees can be sneaky.







Thank you fore looking and I hope I helped someone.
Feel free to ask any questions or criticize.


.
nyc job n it was very inspiring fr me.cud plz tell me whr to look or how to do a burning laser from a LG dvd rw ? plz thanx .
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Old 09-19-2011, 06:57 PM #7
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by anurock View Post
nyc job n it was very inspiring fr me.cud plz tell me whr to look or how to do a burning laser from a LG dvd rw ? plz thanx .
pls dont quote the whole post just copy the part you have question in your post.
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Old 09-19-2011, 07:32 PM #8
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by anurock View Post
nyc job n it was very inspiring fr me.cud plz tell me whr to look or how to do a burning laser from a LG dvd rw ? plz thanx .
As said above, please edit and delete your quotation, it is not nice for other users.

This is not a toy. ..
This is a unit to be used in laser scanners.
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Old 09-19-2011, 09:36 PM #9
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Nice Labby...i have nearly the same heatsink but with a centered hole drilled out.
Any advice why you not centered the hole?
All in all nice tutorial!
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405nm >> 800mW Q5 by DTR & lazeerer from DJNY
405nm >> 1000mW 501B host from Blord
445nm >> 1200mW AuroraC6 Host from Survivallaser | review
445nm >> 3400mW Dominator Host from Blord
488nm >> 3W Argon-Ion from Aesculap Meditec
514nm >> 3W Argon-Ion from Aesculap Meditec
532nm >> 100mW module without host
660nm >> 300mW Jayrob Chrome pen built by RA_pierce from DJNY

Ophir-Head 20C-A in a 2W LPM from Bluefan - review
Ophir-Nova LPM with Ophir-Head L30A-10mm
Spectrometer Spectra-1 from Kvant (Slovakia)
Kvant ClubMax 3000 RGB Pure Diode White Showlaser with Pangolin Discoscan Lens from Kvant (Germany) | review

You want to see the SurvivalLaser in action? --> Beamshots 445nm + 532nm
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Old 09-20-2011, 06:19 AM #10
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by regalis View Post
Nice Labby...i have nearly the same heatsink but with a centered hole drilled out.
Any advice why you not centered the hole?
All in all nice tutorial!
My scanner needs a specific beam elevation and till then ii can play around with 2 options for elevation.
Also allows space to drill mounting holes and also wire 'fasteners'.

Any reason to center it exactly?

Thanks for the encouragement
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Old 09-20-2011, 07:08 AM #11
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

I understand...the wirefasteners are also a good thing i didn't have
I had to drill it centered because the copperpart is...uh...i'll make a picture
First Build + Tutorial for  445nm labby!!-img_0062_klein.jpg
First Build + Tutorial for  445nm labby!!-img_0065_klein.jpg
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405nm >> 800mW Q5 by DTR & lazeerer from DJNY
405nm >> 1000mW 501B host from Blord
445nm >> 1200mW AuroraC6 Host from Survivallaser | review
445nm >> 3400mW Dominator Host from Blord
488nm >> 3W Argon-Ion from Aesculap Meditec
514nm >> 3W Argon-Ion from Aesculap Meditec
532nm >> 100mW module without host
660nm >> 300mW Jayrob Chrome pen built by RA_pierce from DJNY

Ophir-Head 20C-A in a 2W LPM from Bluefan - review
Ophir-Nova LPM with Ophir-Head L30A-10mm
Spectrometer Spectra-1 from Kvant (Slovakia)
Kvant ClubMax 3000 RGB Pure Diode White Showlaser with Pangolin Discoscan Lens from Kvant (Germany) | review

You want to see the SurvivalLaser in action? --> Beamshots 445nm + 532nm
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Old 09-20-2011, 04:37 PM #12
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Default Re: First build - guide for $55 labby (by a noob - for a noob)

Quote:
Originally Posted by regalis View Post
I understand...the wirefasteners are also a good thing i didn't have
I had to drill it centered because the copperpart is...uh...i'll make a picture
Hmm I can't quite make out the elevation of the copper but it looks wonky?!?!?!

It would have helped if you used a rectangular shaped one to help it to sit firm and flat - but hey whatever is free.. goes..
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Old 09-20-2011, 05:38 PM #13
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Default Re: First Build + Tutorial for $55 445nm labby!!

The fins are on two sides flattened so it stand realy stable.
The coppercore is on one side like a cup
And yes..it was free
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405nm >> 800mW Q5 by DTR & lazeerer from DJNY
405nm >> 1000mW 501B host from Blord
445nm >> 1200mW AuroraC6 Host from Survivallaser | review
445nm >> 3400mW Dominator Host from Blord
488nm >> 3W Argon-Ion from Aesculap Meditec
514nm >> 3W Argon-Ion from Aesculap Meditec
532nm >> 100mW module without host
660nm >> 300mW Jayrob Chrome pen built by RA_pierce from DJNY

Ophir-Head 20C-A in a 2W LPM from Bluefan - review
Ophir-Nova LPM with Ophir-Head L30A-10mm
Spectrometer Spectra-1 from Kvant (Slovakia)
Kvant ClubMax 3000 RGB Pure Diode White Showlaser with Pangolin Discoscan Lens from Kvant (Germany) | review

You want to see the SurvivalLaser in action? --> Beamshots 445nm + 532nm
You have laser related questions? --> Sam's Laser FAQ
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445nm labby pinout driver





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