Thingiverse
6" Spherometer
by megachirops
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This is a 6" diameter Spherometer I am using to grind a 9.25" mirror.
Each leg from point to point of the ball set screws is 131.98mm.
To make one you will need:
(1) Printed Spherometer body.
(3) M6 ball tipped set screws, 16mm long.
https://www.mcmaster.com/93339A211/
(1) Economy .001" resolution dial indicator.
https://www.mcmaster.com/20715A74/
(1) Any M4 screw to secure dial indicator in position.
Each leg from point to point of the ball set screws is 131.98mm.
To make one you will need:
(1) Printed Spherometer body.
(3) M6 ball tipped set screws, 16mm long.
https://www.mcmaster.com/93339A211/
(1) Economy .001" resolution dial indicator.
https://www.mcmaster.com/20715A74/
(1) Any M4 screw to secure dial indicator in position.
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