6 replies to this topic

[peterc]

This is a simple secondary mirror mask I made to ease collimating the focuser with a laser. If you have trouble with it like I do this makes it quick and easy.
This is sized for the RC8 secondary baffle tube. I have supplied the FreeCAD design so you can adjust or remix as you need to fit what you have.
I printed this in PETG but will probably be fine with PLA etc. White is the best to see where the laser is.

 

https://www.printabl...ollimation-mask

 

(Also posted in reflectors but I think RCs seem to be talked about here too...)

Edited by osbourne one-nil, 18 February 2025 - 02:12 AM.

[Dynan]

Link doesn't...link.

[peterc]

Fixed it so should be good now.

[osbourne one-nil]

Well it definitely does now!

[Terrel]

I don't have FreeCad and can't open in Autodesk Fusion. I can model my own but how large did you make the center opening?

Thanks.

[peterc]

I don't have FreeCad and can't open in Autodesk Fusion. I can model my own but how large did you make the center opening?

Thanks.

I made it 5mm. It's about the size of the ring on the secondary roughly.

[Terrel]

I made it 5mm. It's about the size of the ring on the secondary roughly.

Thank you