Beacon Hill Telescopes (http://beaconhilltelescopes.org.uk/) list blanks up to 250mm diameter and also list all the necessary grinding materials.
David.
British Astronomical Association
Supporting amateur astronomers since 1890
Supporting amateur astronomers since 1890
Beacon Hill Telescopes (http://beaconhilltelescopes.org.uk/) list blanks up to 250mm diameter and also list all the necessary grinding materials.
David.