Spacers, working distance, astronomy, astrophotography

I'm selling 3D-printed working spacers for astrophotography. You can place these between reducers, etc., on the QHY filter wheel with 6 M3 screws. They're available in all lengths. Normally, there are only individual rings that you place one behind the other. This has the disadvantage that they can also be translucent or wedge into each other. This doesn't happen with my spacers, as they're a single piece.

You can see an example application in the photo with the white arrow.

Printer: Bambu Lap P1S
Material: Black ABS
Temperature resistance:
-30 to 80 degrees
Printed upon order and then shipped to you, but pickup is also preferred.

You will also need an M68 connection ring with holes for countersunk screws. Please include this in your calculations; mine has a thickness of 2.95 mm. I can order it separately for you. If you already have it, it's fine. Custom-made products are also possible.

If you have any questions, please write. I'll respond as soon as possible. I assume no liability for any calculation errors on your part.

This item can be ordered here:

https://www.ebay.de/itm/186639879694?_nkw=Arbeitsabstand&itmmeta=01J61X4MDVVBC9X7CTS6TM0BD2&hash=item2b749a8e0e:g:n9kAAOSw17Zmwkiv&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9