Sun 28 May 2006 |
| Continuing with the avionics rack mounting - the next step is a large cut-out in the panel sub structure. After various options I decided to go with a slightly oversized hole with two folds (inboard and top), the stiffener plate can then go in from behind. | 
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| The corners were drilled and the dots joined with the air sabre-saw. I used a wooden block to reduce the flexing in the panel material. | 
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| The rough cut, then filing, sanding shaping. | 
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| Doing the folds was a bit of challenge, some box section steel and various clamps were used and actually worked very well. | 
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| A bit more trimming and the basic structure fits, now it is refinement and making sure everything is square / aligned. | 
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| The rear panel with the stiffener, the edge clearance was a bit tight and needed tidying up. | 
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