Mitsubishi ML520G71...Red Holy Grail or Flashlight Fail ??

[andyf97]

that is correct i am trying to compile all the test data and make the OP in the GB thread have all the needed info.
But the GB is very close to a go.
4 units left.
after this GB I am not going to do it a second time unless we can get 50.
So this may be the only time to get them.

Its a 5 minute job to update the first post, just get on with it. And if you just need two more for the GB, add me to the list for 2 sets.

[steve-o]

Ahh Steve, I did not realize the prices had dropped so much, last time I was looking at these diodes was 2011 and then were around 70usd.

Yeh, a lot has changed in just a few months .. for the better

[steve-o]

Depending on what you wan. If I remember correctly, ki has one set of PCX-PCX left (Where PCX is planoconvex and PCV is planoconcave). Originally the PCX-PCX design was chosen due to ease of manufacture and the fact that Ki wanted to knifedge two beams together at the focal length the first (10mm fl) PCX lens produces, which turned out to be very unstable. Thus why have a large distance (70mm) between lenses when with a PCX-PCV you have the same functionality but a shorter distance - which in some projcectors distance is a very limiting factor.

I wan a good beam. Space is not a concern (unless it's over 180mm)

[Fenechlaser]

I wan a good beam. Space is not a concern (unless it's over 180mm)

Unfortunately in my case it is :/ Trying to fit scanners and lasers on a baseplate 210mm x 190mm in a already small housing..

[kiyoukan]

that is a very small plate are you upgrading a reke projector or something

[kiyoukan]

sry for the dbl post on mobile but the GB thread opening post has been redone please give it a look. as we have gotten enough sets to place the order.
if you are not on the list let me know.
i am unsure if i will be running this a second time so if you can order more you might want to.
you guys will love the beam off these setups its so nice to have a good bright red.

[Fenechlaser]

I managed to obtain an old Laser Science projector. The only thing that was worth salvaging was the case (HeNe tube smashed to bits and lissajous motors all corroded). I decided to keep it and use it for my projector, hence my small baseplate.

[planters]

I can't locate a post that covers this, but was the general consensus that the cylinder expanders (such as with the GB) are useful if trying to combine multiple diodes AND THEN passing the composite beam through an expansion stage or will each diode have to be pre-expanded?

[Solarfire]

I can't locate a post that covers this, but was the general consensus that the cylinder expanders (such as with the GB) are useful if trying to combine multiple diodes AND THEN passing the composite beam through an expansion stage or will each diode have to be pre-expanded?

Well I managed to design a quad setup where only one set of cylinders will be required. This is with the lava cylinders due to wanting to keep the footprint smaller but will work with the GB cylinders as well. Main thing is to keep the beam paths equal lenghts.

[kiyoukan]

Yup you can build a quad setup with one set of correction optics, but it becomes a bit harder due to the amount of space you have to work with is about 30mm to have both the knife edge and then the pbs cube.