Bar to resonator spacing.
I'm building a graduated bar F3 to F6 vibe from scratch using 60.60.T5 aluminium here in Queensland Australia.I have finished all the bars (going up 2 cents every octave on advice from the pianist in my jazz group who is a piano tuner by trade). I've been able to tune the 1st overtone up to Bflat 4. I used 10mm thick bar.
How do I find the best spacing between under the bars and the top of the resonators for best balance of volume and sustain? I am not using fans, so there are no cutouts at the resonator mouths but will use electronics to get some amplified vibrato/tremelo.
How many cents flat would the resonators have to be for good sustain? I suppose they should be less flat up near F6. Any suggestions or is it just cut and try?
I'm just starting on the frame so it's time for dimension planning. I'm a fitter and turner by trade but love woodwork for a change.
It's been 45 years since I touched a vibraphone so i'm looking forward to getting into vibes again but I still gig every week on drums or bass.
It's wonderful to find a source of expertise like this.