Center Weight Pen Mount
grabcad
Updated Better Option PenHolder KEY-BAK SUPER48 Bearing 6706-ZZAnyone is free to improve on anything. 4mm bolt for pen is 45 or better 50mm longTesting a Center Weight for a Drawing Robot by Dan RoyerGoal is to remove most the wobble when drawing.First try was 2 1 1/8 collars ( 28.5mm ID) , each weighs about 110g , issue is pen mount turningthis setup now is doing half weight above and below the servo arm. a balance effect ( hopfully)Update: 2-28-2022This version seems better. I did learn there is 2 types of wobble. a rocking wobble, that is caused by the arms not freely rotating. second wobble is caused by servo arm bounce wobble. so go carefully and clean all parts until you get the arms rotating with out any friction. on servo arm find your max delay that stops bounce wobble.
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