farid nada - 9-18-2011 at 08:11 AM
hi all,
as for the mould , the front and the back block are fixed.
the dimintions are as following:
Lenghth : 52.5 cm.
Width : 40 cm.
Depth : 22.8 cm.
it is cemicircular. the LENGTH SCALE will be 60 cm.
now, what is about your opinion around that items?
and what is the No.s of braces you advice?
bulerias1981 - 9-18-2011 at 09:27 AM
This seems like a fairly large bowl. In this case at minimum, 7 braces, maybe 8. Depends where you put them and how thick the top is as well.
farid nada - 9-30-2011 at 04:44 PM
thanks bulerias for your comment,
i suggest to follow Nahat modle
you are right braces should be 8
brace thickness,as I see, mayebe 4mm, hight is 20mm
I need your advice.
bulerias1981 - 10-2-2011 at 09:48 PM
Yeah, 8 braces for that size bowl would be standard. Also, 4mm, with a height of 20mm is fairly standard.
Since the bowl is so large, you might wanna go slightly thicker on the braces. Maybe 5mm, and not make every brace 20mm. I make the braces in the
center a little higher than the ones close to the blocks. So the tallest 20mm, and the next 18mm, and then eventually 16mm or so.
You have to experiment a bit, take a lot of measurements and repeat this procedure many times until you feel you know whats best. I'm working on this
myself.
farid nada - 10-5-2011 at 06:52 PM
thanks dear bulerias
I will your advise since it right
but what is about the soundboard itself?
it should be 1.5mm all or 1.5mm centerally decreasing to 1.3mm twards outside?
I need your advice.