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I'd be interested in some for sure :)

Thanks, the printer is a clone of an ultimaker 2+ extended. I had an original UM2 a few years ago and fell in love with them. These days it is hard for me to justify the cost of the true UM2s :) I think the layer height was .15 for this print (cura default). The alignment of the fiber optic...

I'm glad I asked... thanks for clarifying.

I found a nice diagram of one over at B&W Tech's website. Components of a Raman Spectrometer - B&W Tek After looking at this image some more, it makes me wonder if the two fiber optic cables are the same size or different. In the case of these machines and if they are different sizes, it would...

Yeah, diber did an awesome job designing this case.

Yeah, that make sense :) I had a Canon 30D back in the day, what canon do you have?

Re: B&Wtech 473nm unit / Spectrometer Mods & Info I finally got around to printing the case for the spectrometer. It is a really nice case :) Here is a pic of mine sitting on my desk.

Sounds like a color correction issue :) Are you working with the raw format or some other like JPG? I wonder what it would look like through a diffraction grating? Speaking of diffraction gratings, I took my Argon gas discharge lamp and took a picture of it with one of those cheap 1000 l/mm...

Thanks, that helps a lot. I'll keep an eye out for some good deals on a 532nm lab laser and beam splitter cube. In the meantime, the quest is on for some good samples that will work with 473nm :) So far I've seen diamond and acetone sampled here and I'm guessing that other liquids solvents may...

Thanks, for starters anything that can be done with the 473nm laser. I've been googling to try and find out what works good for this wavelength. I'm still so new at this that I just want to play with what I have and learn from it. I play around with making graphene and one day I would like to...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info I ran mine with the filter removed and the beam splitter attached to the 473nm laser. I put the rubber cap on the end and just measured the reflected laser light. If I remember correctly, it looked pretty tight to me. I didn't save an image of...

Sounds good to me!

Whew, I'm WAY behind on my parts collection... :drool::bowdown:

Re: B&Wtech 473nm unit / Spectrometer Mods & Info I had asked what the second order filter on these things were and if anyone had any info or links. So, I'm assuming you are referring to me lol. I did google for it before I posted my question here but was unsuccessful in finding it. I'm not...

This got me thinking and so I went back to the code. The VB6 code I converted to C# lets you specify the polynomial order you want to calculate for. Since we've been talking about 3rd order polynomials I've just been passing in the number 3 for that parameter. Here is the function public static...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info Funny thing, I reached out to the guy to see if I could pick up locally. In his response, he asked if I was planning on putting the sensor into an Ocean Optics spectrometer, to which I replied no, I was planning on putting it into a B&W Tech...

Thank you, thank you, thank you! This is exactly what I got these for and I'm looking forward to following this thread. I am a complete noob when it comes to Raman and I have spent a lot of time reading and watching videos. I have learned a lot but I still have a ton of questions. I'm trying...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info Ah, I think I spotted it. Is it the glass rod looking thing attached to the front of the sensor? Thank you! Awesome, it is located in Orlando Florida! if I can find a local number for them I might be able to just go pick it up :D

You could change the grating and get a wider bandwidth at the cost of resolution. I took a sample of a neon light I have and compared it to some charts I found online. At first I thought the same as you, way too many lines but after looking closer at it I noticed it had the same pattern as the...

Sure do :)