Meade ETX90 Dust Caps

Some dust caps for my old Meade ETX90 telescope


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Well - i needed some decent dust caps for my very old Meade ETX90 telescope. The finder is the cross hair type (original one from just before y2k). Designed in 1-2 hours in FreeCad (great open source program) and printed out in PLA - Flame Orange.
The Flame Orange is VERY easy to find if you drop them on the ground. The design file is included.

Materials and methods

Printed in PLA on my Prusa I3 MK2 with at least 1mm walls and 30% infill. Works great...



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4145a49662c7d7d5e17a5ed0f6aca532?default=blank&size=403DAutodidact commented ago


I bought my ETX90 close to 20 years ago and it is still completely original. Only change is the secondary mirror, which had to be re-glued years ago.

The finder is the old cross hair type.

B844522b27652e18735144ec8dc026f2?default=blank&size=40BRnPA commented ago

Very nice caps. I plan to print these: I picked up an EXT90 the other day (thrift shop) and it needs caps. Regarding your finder scope: Is that the original finder or have you upgraded to a larger red-dot finder? Thanks!

4145a49662c7d7d5e17a5ed0f6aca532?default=blank&size=403DAutodidact published this design ago