My take on a quad red

[andy_con]

if you are not going to tweak might as well buy a ready made module...tweaking the laser is fun

here here

[andy_con]

as i have a milling machine now thought it was time to redo my quad red.

so it went from this -




to this




theres all three laser in my projector at 18 metres
bit of scatter from my red but generally very good spot sizes

[hobbybob]

Damn Andy,

Nice work !
Looks great, excellent job!
That milling machine was a good move ;-)

[edison]

Maybe its time to build yours hobbybob:

[andy_con]

i helped him get one going at the meet

[hobbybob]

Yup, that one was almost done !
But as i am fighting to get my second green finished, there was no time to continue.
Will fix it however.

Then i need to finish of the 2 blue Edison modules and then... then finally the red !

Also looking forward to Edison's quad design, very space efficient.

But first the green needs to be assembled , tested and adjusted.
Then i need to cut 7 holes for my Matilda boards (grrrrr a CNC machine would be so nice ;-) because i need those before thursday, for the show i a m doing on friday night.

Damn. I hate working under pressure, no time for anything else, just work, eat, do lasers, sleep and then the cycle continues. All day at work i am looking forward to be behind my drillpress and soldering iron again.

[andy_con]

ok so as most know ive had a few len stability issues which ive been working through.

im 100% sure that the black plastic holding the lens caused the problem and im also 90% sure the actual aixiz diode holder is part of the problem.

i brought some bare 7020h lens from roithner and some aixiz lens holders. i made a test rig where the diode and lens mounted directly into the alum block. i had no stability issues whatsoever.

just changed the normal roithner lens out of my quad red and replaced them with the brass lens holder from aixiz.

although a lot better still a few stabilitiy issues. hense why i think the aixiz diode holders could also be part of the problem, so i wont be using them in the future

but heres the beam at 18 metres with all 4 beams overlapped -

[MisterWilling]

Good work, thanks for the update.

I just mounted some 7020 lenses in brass housings too and about to try a 12 diode module.

Do you think your continued stability issues could have anything to do with how the aixiz are mounted in your isolating compound?

[andy_con]

umm not sure dont think id rule it out

[edison]

Great work andy!!! What is the distance between the lenses of the telescope? I know how to calculate the ratio of a telescope but i dont know how to calculate the working distance. If you could help me out here that would be great.