If the eyepiece tray on a Dobsonian is broken, it can be reattached with through screws

If the eyepiece tray on a Dobsonian telescope breaks off, it can be reattached using through-bolts. To do this, the ends of the screws should be covered with rubber caps. Alternatively, you can reverse the screws to avoid damaging the tube.

www.teleskop-spezialisten.de/shop/Dienstleistung-Service:::10.html