Sounds like something Sutherland should have supplied with the Timeline from the start.
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The Timeline appears to be a very accurate and precise instrument. Perhaps too accurate for measuring turntable speed as you may be chasing an impossible standard. Once you dial in your table for perfect speed, is the speed accuracy repeatable and constant over a period time when taking in consideration temperature changes, power changes, humidity changes etc. Is the Timeline a cure or a curse?
PS- Ketchup, nice work on the calculator
Just measure from the spindle to where the mark hits the wall and the calculator should get you very close. I don't believe that the beam needs to be exactly perpendicular to the wall for this to work well enough. However, the accuracy of the data input into the calculator is important. Try to measure as accurately as possible as that's going to be the source of the most error.
I guess the site upgrades have temporarily disabled the ability to email other members. If you want the calculator, please do as Ecir38 did.
I have never seen your system pics before. Is that a slate plinth you have your Garrard 301 mounted in? It looks great! I'm planning something similar for mine. The calculator is on its way.
Being able to put a percentage of accuracy to my tables will prove to be very interesting. Thanks for doing the work.
Would you be kind enough to send me one as well please to:
Will post the results of my four tables.
Thank you very much,
Instead of neurotically watching the laser spot on a wall, can one program a laptop with a camera to read the motion and do all the calcuations? One would then only focus the spot on a CCD camera of a laptop and let the software do all the caculations (taking into account camera's focal distance, pixel size etc). Any takers?
I'm using PlatterSpeed to get my Solid9 in order as it was running fast. Considering getting a Sutherland but not cheap. I have the Feickert 7" and Platterspeed shows quite a sway back and forth while running the 3150hz tone; as opposed to midly moving like the demo shows. I would love to try the Excel calcualtor if I pickup a Timeline.
tonight I will try the tone on the UTR, have to find it in the stacks.