big peak on 35hz on y axis help :/

Hi, i am tuning my v core 4 400mm and i am stuck with problem that my gantry is shaking like crazy on around 30-35Hz which gives me horrible accelerations . I used real time analyzis to test that frequency and i found the carriage is shaking the most , if thighten the belts then whole gantry is shaking.
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2 Replies
Deska
DeskaOP3w ago
Meanwhile the x graph looks ok to me . One peak at 65 Hz and gives me 16k acc
RainingRusty
RainingRusty2w ago
Did you resolve this? My graph looks very much the same

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