Mizar objective cap ??

[brian nordstrom (As avatar)]

Looking for an objective cap that will fit the 80mm f1000 Mizar refractor I am doing up to its former glory , but I cant for the life of me find one with an inside diameter of 122mm , any suggestions on who sells these in Australia , or world wide ??
Any suggestions most apreaciated .
Thanks .

Oh yes plastic or metal it wont matter ..

Brian.

[LewisM]

Make it.

Seriously.

Easy enough on a lathe with some aluminium, acrylic or even ply.

I make Takahashi "manhole" style plug dewshield caps out of laminated plastic card - very simple!

I have even made them before out of cardboard, then impregnated with superglue (thin stuff) then further stiffened with resin/bog. I have even seen people make them out of papier mache! (suitably weather varnished).

Great creative...

[brian nordstrom (As avatar)]

Yes. , might have to if no one has something in their parts drawer .

Brian.