There is no getting around it - the mandolin which I had built from the iv kit failed structurally. I originally bought an A kit with no holes and decided to turn it into an oval hole mandolin. The top is collapsing along the long axis of the oval hole. It's quite pronounced.
I knew this was an unorthodox thing to do as the top differs from a Gibson A oval hole instrument, as well as where the neck is attached. However, I decided to go for it and all seemed well enough. In fact, a few others on this forum tried to do a similar thing around the same time.
You can see a picture of the inside right after I cut the hole, with the X braces marked and then a picture of the damage as it is today. The braces seem to be holding up the top well enough and then the crease begins right where the braces end.
As much work as I had put into it, I'm looking at this as a learning opportunity rather than be upset.
The questions that pop into my mind are - was the hole in a bad position? Was the top too thin - I know that the traditional oval hole mandolins have a much thicker area around the hold and the are above it where the neck extension is traditionally supported. Are the X braces in the wrong place? Have any of you seen this type of failure before? For the iv-builders who ventured this way - how are your oval hole hybrids mandolins holding up?
Just to be clear - this is not a complaint about the iv kit at all! I know I deviated from the intended design but I was adventurous.
Now it's time to learn and move on and maybe help other budding builders avoid this.
Thanks
Avi
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