Lost my patience with the occasionally jumping off belt @45rpm and the associated inaccurate motor azimuth alignment.
So I changed the original adjustment screw to a countersunk form-fitting torx screw, which clamps a 18° divided scale to the washer below. Scale made with Powerpoint and from photographic paper. At least knowing now the amount and the direction of change...on the sticker R(iemen) means direction of Belt height change...and I can tell you 18° matter...
A late remark: Having installed the scale during wintertime all seemed OK, but now in hot summer, I had problems to tame the stretched belt from jumping off again, while keeping the "right parking position" in the middle of the 45 pulley, when switching the motor off (less belt bending and higher pre-tension). So I went for a AudioSilente pulley and a custom made clutch spring (100g force compared to the original 440g, which is defintely too much for a stretched belt). This adds a lot of belt stability, no jumping off any more and proper guidance through the probably better belt grip on aluminum and maybe also slightly different pulley contour in combination with the less aggressive clutch.
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- Joined: 14 Aug 2016 14:45