Yes, it'd also be helpful if you could share any links or knowledge you have that you're working to reproduce in a DIY manner -- for context.
Actually I think there are answers to a number of these questions -- could you repost them as separate questions and we can try to help link you with the answers?
- Does anyone know how to remove this filter?
- Also, if anyone has actually used this spectrometer with solids before
- In scanning solids, do you know any other challenges that you faced with or without the infrared?
- Did you use the spectrometer in the same way? (can you link to some example or scientific paper for comparison?)