Another project red?

**MechEng3** · 02-07-2010, 19:46

Considering the overall outlay, I feel this is possible. Given the fill factor of the diodes, the output should be collimated with achromats to a nice size. The planned footprint of the laser head is 130mm X 145mm, with drivers and all electronics mounted on an exterior PCB inside the driver module assembly. Comments? Just planning stage for now...I may actually build it for kicks and giggles. I was thinking of a PL based project....any other intrest? That way all info would be shared and problems freely discussed and solutions opened. This could also be done on a smaller/larger scale...keeping in mind the final outcome and fill factor at the PBS cube.

**hobbybob** · 02-08-2010, 09:24

Interesting project. Can you explain how to connect 6 diodes up to the flexmod ?

**buffo** · 02-08-2010, 09:28

You wire the diodes in parallel, with a 1 ohm, .5 watt resistor in series with each diode to help balance the current between them. You then set the Flex-mod current to be 6X the normal current for an LOC diode.

Adam

**Laserman532** · 02-08-2010, 11:21

do those circles represent the beam, or the lens, or the aixiz modules. I dont see it working but, thats just me. the alignment variables are many, same problem with the aixicon idea.

**buffo** · 02-08-2010, 13:56

The circles represent the beams. With the LOC reds, you end up with a slightly elliptical beam (which is not really easy to see in Mike's illustration above). His diagram is just to illustrate how to best stack the beams to take advantage of this elliptical shape.

As for the alignment - yes, it will be a challenge. I have a quad unit here that Mike assembled, and though it took him a good while to tweak it, it has a very nice beam that is rock stable. But it only makes around 800 mw at the aperture. Potentially this monster he's proposing could output close to 2.5 watts.

Not a project for the faint-hearted, to be sure, but by no means impossible. After all, we all remember this awesome home-made red, right?

Adam

**daedal** · 02-08-2010, 14:03

Originally Posted by MechEng3

Considering the overall outlay, I feel this is possible. Given the fill factor of the diodes, the output should be collimated with achromats to a nice size. The planned footprint of the laser head is 130mm X 145mm, with drivers and all electronics mounted on an exterior PCB inside the driver module assembly. Comments? Just planning stage for now...I may actually build it for kicks and giggles. I was thinking of a PL based project....any other intrest? That way all info would be shared and problems freely discussed and solutions opened. This could also be done on a smaller/larger scale...keeping in mind the final outcome and fill factor at the PBS cube.

That seems very cool... I would like to get in on this. I propose a competition...

My idea is to go for most reliable, and easiest to tweak.

--DDL

**andy_con** · 02-08-2010, 14:05

i feel the words arctos and patent coming on

**daedal** · 02-08-2010, 14:22

Originally Posted by andy_con

i feel the words arctos and patent coming on

Well... I don't think they're going to chase me down for a non-profit personal-use project... :P

--DDL

**Laserman532** · 02-08-2010, 15:03

you can lead them to water...but you can't make them drink

**andy_con** · 02-08-2010, 15:20

Originally Posted by Laserman532

you can lead them to water...but you can't make them drink

people might wana make their own smaller version though

**daedal** · 02-08-2010, 15:28

Originally Posted by andy_con

people might wana make their own smaller version though

Agreed, and that's only 8... I'm looking at 12+

--DDL

**Laserman532** · 02-08-2010, 15:36

Originally Posted by andy_con

people might wana make their own smaller version though

you funnie boie - standing by for your design

**allthatwhichis** · 02-08-2010, 15:36

Originally Posted by daedal

That seems very cool... I would like to get in on this. I propose a competition...

My idea is to go for most reliable, and easiest to tweak.

--DDL

I need to commision a really BIG popcorn eating smiley...

x10

**andy_con** · 02-08-2010, 15:39

Originally Posted by Laserman532

you funnie boie - standing by for your design

is there something wrong with my design then?

**Laserman532** · 02-08-2010, 15:47

Originally Posted by daedal

Agreed, and that's only 8... I'm looking at 12+

--DDL

well with that design...why stop at 12 - 24 would be a logical transgression - you will still incur alignment nightmares.

no offense to mecheng...but i have TONS of stuff on paper that will never work

not saying this wont...but it is a overt challenge for anyone to build one. (i am really cheering for you)

Why do I say that??? The only reason I graduated from Laser school was because my instructor said..."bishoff you will NEVER graduate"

**Laserman532** · 02-08-2010, 15:48

Originally Posted by andy_con

is there something wrong with my design then?

you have a 8 or a 12 design?

**andy_con** · 02-08-2010, 15:53

Originally Posted by Laserman532

you have a 8 or a 12 design?

i know you like to think your the best builder when it comes to multi diode but there are others who have done a lot better!

**Laserman532** · 02-08-2010, 15:57

Originally Posted by andy_con

i know you like to think your the best builder when it comes to multi diode but there are others who have done a lot better!

no I dont think that... IS THAT your design?

**andy_con** · 02-08-2010, 15:59

you will never know as somethings just arent for this forum

**Laserman532** · 02-08-2010, 16:02

didnt I see you in the movie dodgeball?

Well if that is your design-I apologize...if it is not your design - i'll await your "smaller and better" design

are you always so pissy? or is that just reserved for me

**andy_con** · 02-08-2010, 16:05

i find people annoying trying the pushy sell in threads when people are trying to play, learning and make this own stuff.

**Laserman532** · 02-08-2010, 16:10

so you were the STAR in dodgeball

Do you have a problem with the truth or just answering direct questions?

i sell in the buy, sell, trade forum...if you dont like it...dont read it!

good luck on your project mecheng3 - you can do it!

**andy_con** · 02-08-2010, 16:17

do you have a problem with offering your knowledge on multi diode set ups? or would you rather just try the hard sell and making some money?

didnt realise this post was made in the for sale section? i thought it was in the advance technical discussion section?

**Laserman532** · 02-08-2010, 16:38

Originally Posted by andy_con

do you have a problem with offering your knowledge on multi diode set ups? or would you rather just try the hard sell and making some money?

didnt realise this post was made in the for sale section? i thought it was in the advance technical discussion section?

Ahhhh so...it is "true" that you "have a problem with answering a direct question"

to answer your question - I do not have a problem offering knowledge on multi diode set ups AND I enjoy to offer solutions to peoples problems and if I make a buck along the way...then so be it.

offering knowledge is one aspect of a contribution, offering turn key mechanical solutions that actually ship is another.

facts are...artist renditions can only take you so far...I have seen artist renditions of men actually walking on the planet Mars.

as soon as you offer a 8 diode solution that is "smaller" (i dont know why you are so hung up on this "size" thing anyway...we have been over this before, consult a shrink) than mine...post it! until then you may STFU.

you have offered NOTHING to this topic except drama!

**mccarrot** · 02-08-2010, 16:43

When stacking more than 2 beam on to op each other you need to use a telescope to get a decent beam out of it.

When using a telescope to make a fat beam small again we all know it will increase the divrigence.

So its very important to have good lenses with a small beam and small divrigence.

If needed I can supply you the correct telescope and all other equipment needed for your project.

But to get this good it will be an expensive project, I think in the end you pay 1/2 the price of a of off the shelf quality red laser (arctos) but you will spend many hours adjusting.

Don't forget photo's when you get started

Thread: Another project red?

Thread Tools

Another project red?

Posting Permissions