I have been having a little trouble with the pointing and tracking performance of a second hand HEQpro. Imagine my surprise when I removed the puck and found that it was held on with three tiny grub screws into alloy which had clearly allowed some movement. I am glad I have only used a 3.5kg scope.
I would like to modifiy this (some tapped screws? )The design is pretty bad and based on appearance and cost rather than performance.
Does the EQ6 or 8 have a better system. ?
Where the scope is clamped in the dovetail by two 5/16 bolts it seems disproportionate and cheap to hang an expensive scope on a puck fixed with three tiny set screws where other mounts have 2 x 8mm bolts. Particularly slewing with a heavy scope.
I've not heard of a mod, and not heard of anyone having a problem with the puck. I carried 11kg for imaging, and up to 14.5kg for visual, on mine for
just over 7 yrs. I only sold it because it became too heavy for me in
my dotage.
raymo
Ray,
the set-up on the NEQ6 is very similar....
I swapped to the ADM vixen/ losmandy Puck on both my HEQ5 and NEQ6.
Touch wood, no issues, no drama and a more flexible mount.
Hi Ray
I have an HEQ5 and have not had a problem with the 3 grub screws, just make sure they are nipped up securely. You could take the puck out and smooth off where the grub screws have been biting in but an easy mod if you want something more robust, without actually replacing the puck, is to drill and re-tap to 6mm and fit 6mm grub screws.
Thank you for the replies. I will clean up the old score marks and tighten in a new spot for now.
The ADM looks like a good replacement and perhaps the alloy is harder, milled rather than cast. The old puck is soft and the screws seem to bight through.
True that a slightly larger size screw would offer more purchase for the hex key if nipping tight.