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A contact has kindly shared the sale of a rather sophisticated Fullerscopes Mk111:Scroll down until you find Fullerscopes in the item sales headings:
http://www.presencenet.be/nucleus2.0/?catid=5
I think you will agree that it represents a remarkable upgrade on the original mounting.
The stand, with levelling feet, is no doubt lighter than Fullerscopes own. It includes telescoping height adjustment for observer comfort with different instruments. The long, triangulated feet should provide good stability.
30kg load bearing capacity is claimed.
Large setting circles are provided.
A sturdy dovetail unit looks capable of firmly holding relatively large instruments.
The seller lists an 8 1/2" [220mm] RA wormwheel. While the Declination axis has an 8" [200mm] wormwheel. Both wheels are made of bronze for long life. As were the Fullerscopes originals but which were only a, relatively tiny, 3 1/2" in diameter.
These enlarged wormwheels should offer far more accurate guiding and slow motion control of heavier payloads.
Note the use of stepper motors in place of the original synchronous drive motors of the original mounting. The shafts have been increased to 28mm in place of the 25.4mm originals. The brass rings may indicate improved bearings.
The Fullerscopes head castings have been smartened up. It is matter of taste if you prefer naked metal or different paint finishes. Fullerscopes offered the same choices.
A small turnbuckle provides fine adjustment and stability in polar altitude.
A modern hand paddle to control the mounting via the stepper motors.
The whole mounting seems to have been modified. Providing plenty of inspiration to those seeking a strong alternative to the commercial mountings available.
Click on any image for an enlargement.
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