@nsp ,
What type of shelf do you have the Rock 7 on? Whatever it is, check for flatness. You’d be surprised that several materials look flat to the naked eye but are not. I have my Rock set up with it’s feet screwed all the way in. IMO, this is the best way. Leveling can be done with the Rock’s ingenious adjustable outrigger weight or by the platform itself assuming you have the platform on adjustable feet. (I find in my set up, the motor pod’s set screws are just barely enough to get the pod off of my platform.)
@bdp24, The Merlin motor housing has 3 adjustment screws, I think your table’s motor housing may have no adjustment capability, just shims.
One question, when you are adjusting the pulley’s angle/level, is the platter on or off the tt? This will also depend on the pulley distance......what I’ve found is if I adjust the pulley with the platter off and start the motor, sometimes the belt will look fine until I put the platter back in place. Another thing to consider is the platter levelness when doing all of this set up. I swing the trough back to it’s normal position and keep the tonearm at it’s resting place. Then use a weight on the platter ( in my case a brass 3/4lb weight). I keep a small bubble level on the tonearm mounting plate always. Mine is set up where if this bubble level is centered I know my set -up is accurate. Once I know the platter is level I make sure to orient the platter to a reference point for later. This way I can now remove the platter and re-install it with changing the level.
When I look at my belt’s position on my pulley, it in slightly above centered. Once you get familiar with the tt and all of it’s needs, the set up process will become more natural to you.
What type of shelf do you have the Rock 7 on? Whatever it is, check for flatness. You’d be surprised that several materials look flat to the naked eye but are not. I have my Rock set up with it’s feet screwed all the way in. IMO, this is the best way. Leveling can be done with the Rock’s ingenious adjustable outrigger weight or by the platform itself assuming you have the platform on adjustable feet. (I find in my set up, the motor pod’s set screws are just barely enough to get the pod off of my platform.)
@bdp24, The Merlin motor housing has 3 adjustment screws, I think your table’s motor housing may have no adjustment capability, just shims.
One question, when you are adjusting the pulley’s angle/level, is the platter on or off the tt? This will also depend on the pulley distance......what I’ve found is if I adjust the pulley with the platter off and start the motor, sometimes the belt will look fine until I put the platter back in place. Another thing to consider is the platter levelness when doing all of this set up. I swing the trough back to it’s normal position and keep the tonearm at it’s resting place. Then use a weight on the platter ( in my case a brass 3/4lb weight). I keep a small bubble level on the tonearm mounting plate always. Mine is set up where if this bubble level is centered I know my set -up is accurate. Once I know the platter is level I make sure to orient the platter to a reference point for later. This way I can now remove the platter and re-install it with changing the level.
When I look at my belt’s position on my pulley, it in slightly above centered. Once you get familiar with the tt and all of it’s needs, the set up process will become more natural to you.