[moetzmoet]

Hi All

Adding an IFD540 to my panel soon and looking for tips on cutting the hold in the secondary bulkhead behind the panel (RV-7A Slider) for the long tray.

Why re-invent the wheel with all the smart folks on here... right?

I plan on four holes in the corners, but then a saw? Nibbler? Anything better?

Thought about clamping a piece of wood in there to dampen vibrations if I go the saw route.

Thanks in advance-

 

[Ironflight]

Dremel tool with a cut-off wheel - but put drop clothes underneath to collect the dust and stuff - vacuum well afterwards.

 

[Ralph Inkster]

+1 for Paul's suggestion.
Another option if space allows- drill 4 corner holes & a large central hole, step drills work perfectly for this. Using Lt & Rt offset snips make a series of cuts radiating from the center hole towards the corners till you have the square hole required. Quick and slightly less messy than the dremel cut.