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Thanks for the detailed test and the many comments on this part. Now I have to sleep a night to think about it , because I do not really know if I have to look for a reasonable LPM or be happy with the part and instead of the new investment I should rather buy a crate of beer ...? :drunk:

Thanks for the link !!! +rep

Sorry that i post in this old threat, i found this threat and i have such a device since some months before reading this. I am interested in the results of the test .... are there test available or has this threat moved ?

Last but not least, before the adjustments I wanted to show a few pictures of the whole assembly with all modified components.

Yes, all the optical parts are from these devices. We will see, how it works ....

Yes sir, i have to close all holes i made and post the finished device .... and it will go on .....

A lot of work you did for us ... thanks a lot ! + rep .... today i was allowed to do so

In this week here is the next... the grating ..., the round socket of it sits in a fit in the housing and can be precise positional rotated then clamped with the two existing screws, the housing-side clamping disturbs the possibility of an adjustment solution. That's why, unlike the first...

Re: Review of the Directly-Injected 505nm Bluish-Green Laser Pen Thanks for the infos ...! +rep

Great ... thanks again , +rep

great again, thanks for showing !!!

Yes, an adjustment of the collimating mirror increases the complexity, but in principle it was already available before the mod and is also described in the different alignment instructions, such as in science-surplus (see attachment). I have only created the possibility of the adjustment with...

Thanks for showing ..... WOW

Yes, this mirror is concave, and you have to move it back or forewards to place the slit in the focus to create a paralell outcoming beam in to the direction of the grating. like in other devices ... see att.

oh, it is long ago ..... i think i was min the kindergarten ... :)

The next modified component is the collimator mirror. This is a challenge especially due to the small dimensions and the small space available. In the optimal case, this mirror should be set in such a way that the beam path coming from the slit after the reflection on this mirror is as parallel...

Yes Paul, so it is , you are right. I am doing this not to create a device to use. I had some spareparts of defective devices and want to learn a ĺittle bit by doing ... This here can not become a superdevice , it is outside of my possibilities to produce accurate parts in that small dimensions...

Thanks for showing

Great again .... thanks a lot !!!

Now, as a test, i have mounted the extension, now the focus mirror can be adjusted forwards, backwards and rotations via the outward-directed screws. The whole thing has to be provided with a lid sealing and mechanically aligned a bit more accurate. Then in the next step, the adjustment for the...